/**************************************************************************//**
* @file uspi_reg.h
* @version V1.00
* @brief USPI register definition header file
*
* SPDX-License-Identifier: Apache-2.0
* @copyright (C) 2017-2020 Nuvoton Technology Corp. All rights reserved.
*****************************************************************************/
#ifndef __USPI_REG_H__
#define __USPI_REG_H__
#if defined ( __CC_ARM )
#pragma anon_unions
#endif
/**
@addtogroup REGISTER Control Register
@{
*/
/**
@addtogroup USPI SPI Mode of USCI Controller(USPI)
Memory Mapped Structure for USPI Controller
@{ */
typedef struct
{
/**
* @var USPI_T::CTL
* Offset: 0x00 USCI Control Register
* ---------------------------------------------------------------------------------------------------
* |Bits |Field |Descriptions
* | :----: | :----: | :---- |
* |[2:0] |FUNMODE |Function Mode
* | | |This bit field selects the protocol for this USCI controller
* | | |Selecting a protocol that is not available or a reserved combination disables the USCI
* | | |When switching between two protocols, the USCI has to be disabled before selecting a new protocol
* | | |Simultaneously, the USCI will be reset when user write 000 to FUNMODE.
* | | |000 = The USCI is disabled. All protocol related state machines are set to idle state.
* | | |001 = The SPI protocol is selected.
* | | |010 = The UART protocol is selected.
* | | |100 = The I2C protocol is selected.
* | | |Note: Other bit combinations are reserved.
* @var USPI_T::INTEN
* Offset: 0x04 USCI Interrupt Enable Register
* ---------------------------------------------------------------------------------------------------
* |Bits |Field |Descriptions
* | :----: | :----: | :---- |
* |[1] |TXSTIEN |Transmit Start Interrupt Enable Bit
* | | |This bit enables the interrupt generation in case of a transmit start event.
* | | |0 = The transmit start interrupt is disabled.
* | | |1 = The transmit start interrupt is enabled.
* |[2] |TXENDIEN |Transmit End Interrupt Enable Bit
* | | |This bit enables the interrupt generation in case of a transmit finish event.
* | | |0 = The transmit finish interrupt is disabled.
* | | |1 = The transmit finish interrupt is enabled.
* |[3] |RXSTIEN |Receive Start Interrupt Enable Bit
* | | |This bit enables the interrupt generation in case of a receive start event.
* | | |0 = The receive start interrupt is disabled.
* | | |1 = The receive start interrupt is enabled.
* |[4] |RXENDIEN |Receive End Interrupt Enable Bit
* | | |This bit enables the interrupt generation in case of a receive finish event.
* | | |0 = The receive end interrupt is disabled.
* | | |1 = The receive end interrupt is enabled.
* @var USPI_T::BRGEN
* Offset: 0x08 USCI Baud Rate Generator Register
* ---------------------------------------------------------------------------------------------------
* |Bits |Field |Descriptions
* | :----: | :----: | :---- |
* |[0] |RCLKSEL |Reference Clock Source Selection
* | | |This bit selects the source of reference clock (fREF_CLK).
* | | |0 = Peripheral device clock fPCLK.
* | | |1 = Reserved.
* |[1] |PTCLKSEL |Protocol Clock Source Selection
* | | |This bit selects the source of protocol clock (fPROT_CLK).
* | | |0 = Reference clock fREF_CLK.
* | | |1 = fREF_CLK2 (its frequency is half of fREF_CLK).
* |[3:2] |SPCLKSEL |Sample Clock Source Selection
* | | |This bit field used for the clock source selection of sample clock (fSAMP_CLK) for the protocol processor.
* | | |00 = fDIV_CLK.
* | | |01 = fPROT_CLK.
* | | |10 = fSCLK.
* | | |11 = fREF_CLK.
* |[4] |TMCNTEN |Time Measurement Counter Enable Bit
* | | |This bit enables the 10-bit timing measurement counter.
* | | |0 = Time measurement counter is Disabled.
* | | |1 = Time measurement counter is Enabled.
* |[5] |TMCNTSRC |Time Measurement Counter Clock Source Selection
* | | |0 = Time measurement counter with fPROT_CLK.
* | | |1 = Time measurement counter with fDIV_CLK.
* |[25:16] |CLKDIV |Clock Divider
* | | |This bit field defines the ratio between the protocol clock frequency fPROT_CLK and the clock divider frequency fDIV_CLK (fDIV_CLK = fPROT_CLK / (CLKDIV+1) ).
* | | |Note: In UART function, it can be updated by hardware in the 4th falling edge of the input data 0x55 when the auto baud rate function (ABREN(USPI_PROTCTL[6])) is enabled
* | | |The revised value is the average bit time between bit 5 and bit 6
* | | |The user can use revised CLKDIV and new BRDETITV (USPI_PROTCTL[24:16]) to calculate the precise baud rate.
* @var USPI_T::DATIN0
* Offset: 0x10 USCI Input Data Signal Configuration Register 0
* ---------------------------------------------------------------------------------------------------
* |Bits |Field |Descriptions
* | :----: | :----: | :---- |
* |[0] |SYNCSEL |Input Signal Synchronization Selection
* | | |This bit selects if the un-synchronized input signal (with optionally inverted) or the synchronized (and optionally filtered) signal can be used as input for the data shift unit.
* | | |0 = The un-synchronized signal can be taken as input for the data shift unit.
* | | |1 = The synchronized signal can be taken as input for the data shift unit.
* | | |Note: In SPI protocol, we suggest this bit should be set as 0.
* |[2] |ININV |Input Signal Inverse Selection
* | | |This bit defines the inverter enable of the input asynchronous signal.
* | | |0 = The un-synchronized input signal will not be inverted.
* | | |1 = The un-synchronized input signal will be inverted.
* | | |Note: In SPI protocol, we suggest this bit should be set as 0.
* @var USPI_T::CTLIN0
* Offset: 0x20 USCI Input Control Signal Configuration Register 0
* ---------------------------------------------------------------------------------------------------
* |Bits |Field |Descriptions
* | :----: | :----: | :---- |
* |[0] |SYNCSEL |Input Synchronization Signal Selection
* | | |This bit selects if the un-synchronized input signal (with optionally inverted) or the synchronized (and optionally filtered) signal can be used as input for the data shift unit.
* | | |0 = The un-synchronized signal can be taken as input for the data shift unit.
* | | |1 = The synchronized signal can be taken as input for the data shift unit.
* | | |Note: In SPI protocol, we suggest this bit should be set as 0.
* |[2] |ININV |Input Signal Inverse Selection
* | | |This bit defines the inverter enable of the input asynchronous signal.
* | | |0 = The un-synchronized input signal will not be inverted.
* | | |1 = The un-synchronized input signal will be inverted.
* @var USPI_T::CLKIN
* Offset: 0x28 USCI Input Clock Signal Configuration Register
* ---------------------------------------------------------------------------------------------------
* |Bits |Field |Descriptions
* | :----: | :----: | :---- |
* |[0] |SYNCSEL |Input Synchronization Signal Selection
* | | |This bit selects if the un-synchronized input signal or the synchronized (and optionally filtered) signal can be used as input for the data shift unit.
* | | |0 = The un-synchronized signal can be taken as input for the data shift unit.
* | | |1 = The synchronized signal can be taken as input for the data shift unit.
* | | |Note: In SPI protocol, we suggest this bit should be set as 0.
* @var USPI_T::LINECTL
* Offset: 0x2C USCI Line Control Register
* ---------------------------------------------------------------------------------------------------
* |Bits |Field |Descriptions
* | :----: | :----: | :---- |
* |[0] |LSB |LSB First Transmission Selection
* | | |0 = The MSB, which bit of transmit/receive data buffer depends on the setting of DWIDTH, is transmitted/received first.
* | | |1 = The LSB, the bit 0 of data buffer, will be transmitted/received first.
* |[5] |DATOINV |Data Output Inverse Selection
* | | |This bit defines the relation between the internal shift data value and the output data signal of USCIx_DAT0/1 pin.
* | | |0 = Data output level is not inverted.
* | | |1 = Data output level is inverted.
* |[7] |CTLOINV |Control Signal Output Inverse Selection
* | | |This bit defines the relation between the internal control signal and the output control signal.
* | | |0 = No effect.
* | | |1 = The control signal will be inverted before its output.
* | | |Note: The control signal has different definitions in different protocol
* | | |In SPI protocol, the control signal means slave select signal
* |[11:8] |DWIDTH |Word Length of Transmission
* | | |This bit field defines the data word length (amount of bits) for reception and transmission
* | | |The data word is always right-aligned in the data buffer
* | | |USCI support word length from 4 to 16 bits.
* | | |0x0: The data word contains 16 bits located at bit positions [15:0].
* | | |0x1: Reserved.
* | | |0x2: Reserved.
* | | |0x3: Reserved.
* | | |0x4: The data word contains 4 bits located at bit positions [3:0].
* | | |0x5: The data word contains 5 bits located at bit positions [4:0].
* | | |...
* | | |0xF: The data word contains 15 bits located at bit positions [14:0].
* @var USPI_T::TXDAT
* Offset: 0x30 USCI Transmit Data Register
* ---------------------------------------------------------------------------------------------------
* |Bits |Field |Descriptions
* | :----: | :----: | :---- |
* |[15:0] |TXDAT |Transmit Data
* | | |Software can use this bit field to write 16-bit transmit data for transmission
* | | |In order to avoid overwriting the transmit data, user have to check TXEMPTY (USPI_BUFSTS[8]) status before writing transmit data into this bit field.
* |[16] |PORTDIR |Port Direction Control
* | | |This bit field is only available while USCI operates in SPI protocol (FUNMODE = 0x1) with half-duplex transfer
* | | |It is used to define the direction of the data port pin
* | | |When software writes USPI_TXDAT register, the transmit data and its port direction are settled simultaneously.
* | | |0 = The data pin is configured as output mode.
* | | |1 = The data pin is configured as input mode.
* @var USPI_T::RXDAT
* Offset: 0x34 USCI Receive Data Register
* ---------------------------------------------------------------------------------------------------
* |Bits |Field |Descriptions
* | :----: | :----: | :---- |
* |[15:0] |RXDAT |Received Data
* | | |This bit field monitors the received data which stored in receive data buffer.
* @var USPI_T::BUFCTL
* Offset: 0x38 USCI Transmit/Receive Buffer Control Register
* ---------------------------------------------------------------------------------------------------
* |Bits |Field |Descriptions
* | :----: | :----: | :---- |
* |[6] |TXUDRIEN |Slave Transmit Under Run Interrupt Enable Bit
* | | |0 = Transmit under-run interrupt Disabled.
* | | |1 = Transmit under-run interrupt Enabled.
* |[7] |TXCLR |Clear Transmit Buffer
* | | |0 = No effect.
* | | |1 = The transmit buffer is cleared
* | | |Should only be used while the buffer is not taking part in data traffic.
* | | |Note: It is cleared automatically after one PCLK cycle.
* |[14] |RXOVIEN |Receive Buffer Overrun Interrupt Enable Bit
* | | |0 = Receive overrun interrupt Disabled.
* | | |1 = Receive overrun interrupt Enabled.
* |[15] |RXCLR |Clear Receive Buffer
* | | |0 = No effect.
* | | |1 = The receive buffer is cleared
* | | |Should only be used while the buffer is not taking part in data traffic.
* | | |Note: It is cleared automatically after one PCLK cycle.
* |[16] |TXRST |Transmit Reset
* | | |0 = No effect.
* | | |1 = Reset the transmit-related counters, state machine, and the content of transmit shift register and data buffer.
* | | |Note: It is cleared automatically after one PCLK cycle.
* |[17] |RXRST |Receive Reset
* | | |0 = No effect.
* | | |1 = Reset the receive-related counters, state machine, and the content of receive shift register and data buffer.
* | | |Note: It is cleared automatically after one PCLK cycle.
* @var USPI_T::BUFSTS
* Offset: 0x3C USCI Transmit/Receive Buffer Status Register
* ---------------------------------------------------------------------------------------------------
* |Bits |Field |Descriptions
* | :----: | :----: | :---- |
* |[0] |RXEMPTY |Receive Buffer Empty Indicator
* | | |0 = Receive buffer is not empty.
* | | |1 = Receive buffer is empty.
* |[1] |RXFULL |Receive Buffer Full Indicator
* | | |0 = Receive buffer is not full.
* | | |1 = Receive buffer is full.
* |[3] |RXOVIF |Receive Buffer Over-run Interrupt Status
* | | |This bit indicates that a receive buffer overrun event has been detected
* | | |If RXOVIEN (USPI_BUFCTL[14]) is enabled, the corresponding interrupt request is activated
* | | |It is cleared by software writes 1 to this bit.
* | | |0 = A receive buffer overrun event has not been detected.
* | | |1 = A receive buffer overrun event has been detected.
* |[8] |TXEMPTY |Transmit Buffer Empty Indicator
* | | |0 = Transmit buffer is not empty.
* | | |1 = Transmit buffer is empty and available for the next transmission datum.
* |[9] |TXFULL |Transmit Buffer Full Indicator
* | | |0 = Transmit buffer is not full.
* | | |1 = Transmit buffer is full.
* |[11] |TXUDRIF |Transmit Buffer Under-run Interrupt Status
* | | |This bit indicates that a transmit buffer under-run event has been detected
* | | |If enabled by TXUDRIEN (USPI_BUFCTL[6]), the corresponding interrupt request is activated
* | | |It is cleared by software writes 1 to this bit
* | | |0 = A transmit buffer under-run event has not been detected.
* | | |1 = A transmit buffer under-run event has been detected.
* @var USPI_T::PDMACTL
* Offset: 0x40 USCI PDMA Control Register
* ---------------------------------------------------------------------------------------------------
* |Bits |Field |Descriptions
* | :----: | :----: | :---- |
* |[0] |PDMARST |PDMA Reset
* | | |0 = No effect.
* | | |1 = Reset the USCI's PDMA control logic. This bit will be cleared to 0 automatically.
* |[1] |TXPDMAEN |PDMA Transmit Channel Available
* | | |0 = Transmit PDMA function Disabled.
* | | |1 = Transmit PDMA function Enabled.
* |[2] |RXPDMAEN |PDMA Receive Channel Available
* | | |0 = Receive PDMA function Disabled.
* | | |1 = Receive PDMA function Enabled.
* |[3] |PDMAEN |PDMA Mode Enable Bit
* | | |0 = PDMA function Disabled.
* | | |1 = PDMA function Enabled.
* | | |Notice: The I2C is not supporting PDMA function.
* @var USPI_T::WKCTL
* Offset: 0x54 USCI Wake-up Control Register
* ---------------------------------------------------------------------------------------------------
* |Bits |Field |Descriptions
* | :----: | :----: | :---- |
* |[0] |WKEN |Wake-up Enable Bit
* | | |0 = Wake-up function Disabled.
* | | |1 = Wake-up function Enabled.
* |[1] |WKADDREN |Wake-up Address Match Enable Bit
* | | |0 = The chip is woken up according data toggle.
* | | |1 = The chip is woken up according address match.
* |[2] |PDBOPT |Power Down Blocking Option
* | | |0 = If user attempts to enter Power-down mode by executing WFI while the protocol is in transferring, MCU will stop the transfer and enter Power-down mode immediately.
* | | |1 = If user attempts to enter Power-down mode by executing WFI while the protocol is in transferring, the on-going transfer will not be stopped and MCU will enter idle mode immediately.
* @var USPI_T::WKSTS
* Offset: 0x58 USCI Wake-up Status Register
* ---------------------------------------------------------------------------------------------------
* |Bits |Field |Descriptions
* | :----: | :----: | :---- |
* |[0] |WKF |Wake-up Flag
* | | |When chip is woken up from Power-down mode, this bit is set to 1
* | | |Software can write 1 to clear this bit.
* @var USPI_T::PROTCTL
* Offset: 0x5C USCI Protocol Control Register
* ---------------------------------------------------------------------------------------------------
* |Bits |Field |Descriptions
* | :----: | :----: | :---- |
* |[0] |SLAVE |Slave Mode Selection
* | | |0 = Master mode.
* | | |1 = Slave mode.
* |[1] |SLV3WIRE |Slave 3-wire Mode Selection (Slave Only)
* | | |The SPI protocol can work with 3-wire interface (without slave select signal) in Slave mode.
* | | |0 = 4-wire bi-direction interface.
* | | |1 = 3-wire bi-direction interface.
* |[2] |SS |Slave Select Control (Master Only)
* | | |If AUTOSS bit is cleared, setting this bit to 1 will set the slave select signal to active state, and setting this bit to 0 will set the slave select signal back to inactive state.
* | | |If the AUTOSS function is enabled (AUTOSS = 1), the setting value of this bit will not affect the current state of slave select signal.
* | | |Note: In SPI protocol, the internal slave select signal is active high.
* |[3] |AUTOSS |Automatic Slave Select Function Enable (Master Only)
* | | |0 = Slave select signal will be controlled by the setting value of SS (USPI_PROTCTL[2]) bit.
* | | |1 = Slave select signal will be generated automatically
* | | |The slave select signal will be asserted by the SPI controller when transmit/receive is started, and will be de-asserted after each transmit/receive is finished.
* |[7:6] |SCLKMODE |Serial Bus Clock Mode
* | | |This bit field defines the SCLK idle status, data transmit, and data receive edge.
* | | |MODE0 = The idle state of SPI clock is low level
* | | |Data is transmitted with falling edge and received with rising edge.
* | | |MODE1 = The idle state of SPI clock is low level
* | | |Data is transmitted with rising edge and received with falling edge.
* | | |MODE2 = The idle state of SPI clock is high level
* | | |Data is transmitted with rising edge and received with falling edge.
* | | |MODE3 = The idle state of SPI clock is high level
* | | |Data is transmitted with falling edge and received with rising edge.
* |[11:8] |SUSPITV |Suspend Interval (Master Only)
* | | |This bit field provides the configurable suspend interval between two successive transmit/receive transaction in a transfer
* | | |The definition of the suspend interval is the interval between the last clock edge of the preceding transaction word and the first clock edge of the following transaction word
* | | |The default value is 0x3
* | | |The period of the suspend interval is obtained according to the following equation.
* | | |(SUSPITV[3:0] + 0.5) * period of SPI_CLK clock cycle
* | | |Example:
* | | |SUSPITV = 0x0 ... 0.5 SPI_CLK clock cycle.
* | | |SUSPITV = 0x1 ... 1.5 SPI_CLK clock cycle.
* | | |.....
* | | |SUSPITV = 0xE ... 14.5 SPI_CLK clock cycle.
* | | |SUSPITV = 0xF ... 15.5 SPI_CLK clock cycle.
* |[14:12] |TSMSEL |Transmit Data Mode Selection
* | | |This bit field describes how receive and transmit data is shifted in and out.
* | | |TSMSEL = 000b: Full-duplex SPI.
* | | |TSMSEL = 100b: Half-duplex SPI.
* | | |Other values are reserved.
* | | |Note: Changing the value of this bit field will produce the TXRST and RXRST to clear the TX/RX data buffer automatically.
* |[25:16] |SLVTOCNT |Slave Mode Time-out Period (Slave Only)
* | | |In Slave mode, this bit field is used for Slave time-out period
* | | |This bit field indicates how many clock periods (selected by TMCNTSRC, USPI_BRGEN[5]) between the two edges of input SCLK will assert the Slave time-out event
* | | |Writing 0x0 into this bit field will disable the Slave time-out function.
* | | |Example: Assume SLVTOCNT is 0x0A and TMCNTSRC (USPI_BRGEN[5]) is 1, it means the time-out event will occur if the state of SPI bus clock pin is not changed more than (10+1) periods of fDIV_CLK.
* |[28] |TXUDRPOL |Transmit Under-run Data Polarity (for Slave)
* | | |This bit defines the transmitting data level when no data is available for transferring.
* | | |0 = The output data level is 0 if TX under run event occurs.
* | | |1 = The output data level is 1 if TX under run event occurs.
* |[31] |PROTEN |SPI Protocol Enable Bit
* | | |0 = SPI Protocol Disabled.
* | | |1 = SPI Protocol Enabled.
* @var USPI_T::PROTIEN
* Offset: 0x60 USCI Protocol Interrupt Enable Register
* ---------------------------------------------------------------------------------------------------
* |Bits |Field |Descriptions
* | :----: | :----: | :---- |
* |[0] |SSINAIEN |Slave Select Inactive Interrupt Enable Control
* | | |This bit enables/disables the generation of a slave select interrupt if the slave select changes to inactive.
* | | |0 = Slave select inactive interrupt generation Disabled.
* | | |1 = Slave select inactive interrupt generation Enabled.
* |[1] |SSACTIEN |Slave Select Active Interrupt Enable Control
* | | |This bit enables/disables the generation of a slave select interrupt if the slave select changes to active.
* | | |0 = Slave select active interrupt generation Disabled.
* | | |1 = Slave select active interrupt generation Enabled.
* |[2] |SLVTOIEN |Slave Time-out Interrupt Enable Control
* | | |In SPI protocol, this bit enables the interrupt generation in case of a Slave time-out event.
* | | |0 = The Slave time-out interrupt Disabled.
* | | |1 = The Slave time-out interrupt Enabled.
* |[3] |SLVBEIEN |Slave Mode Bit Count Error Interrupt Enable Control
* | | |If data transfer is terminated by slave time-out or slave select inactive event in Slave mode, so that the transmit/receive data bit count does not match the setting of DWIDTH (USPI_LINECTL[11:8])
* | | |Bit count error event occurs.
* | | |0 = The Slave mode bit count error interrupt Disabled.
* | | |1 = The Slave mode bit count error interrupt Enabled.
* @var USPI_T::PROTSTS
* Offset: 0x64 USCI Protocol Status Register
* ---------------------------------------------------------------------------------------------------
* |Bits |Field |Descriptions
* | :----: | :----: | :---- |
* |[1] |TXSTIF |Transmit Start Interrupt Flag
* | | |0 = Transmit start event does not occur.
* | | |1 = Transmit start event occurs.
* | | |Note: It is cleared by software writes 1 to this bit
* |[2] |TXENDIF |Transmit End Interrupt Flag
* | | |0 = Transmit end event does not occur.
* | | |1 = Transmit end event occurs.
* | | |Note: It is cleared by software writes 1 to this bit
* |[3] |RXSTIF |Receive Start Interrupt Flag
* | | |0 = Receive start event does not occur.
* | | |1 = Receive start event occurs.
* | | |Note: It is cleared by software writes 1 to this bit
* |[4] |RXENDIF |Receive End Interrupt Flag
* | | |0 = Receive end event does not occur.
* | | |1 = Receive end event occurs.
* | | |Note: It is cleared by software writes 1 to this bit
* |[5] |SLVTOIF |Slave Time-out Interrupt Flag (for Slave Only)
* | | |0 = Slave time-out event does not occur.
* | | |1 = Slave time-out event occurs.
* | | |Note: It is cleared by software writes 1 to this bit
* |[6] |SLVBEIF |Slave Bit Count Error Interrupt Flag (for Slave Only)
* | | |0 = Slave bit count error event does not occur.
* | | |1 = Slave bit count error event occurs.
* | | |Note: It is cleared by software writes 1 to this bit.
* |[8] |SSINAIF |Slave Select Inactive Interrupt Flag (for Slave Only)
* | | |This bit indicates that the internal slave select signal has changed to inactive
* | | |It is cleared by software writes 1 to this bit
* | | |0 = The slave select signal has not changed to inactive.
* | | |1 = The slave select signal has changed to inactive.
* | | |Note: The internal slave select signal is active high.
* |[9] |SSACTIF |Slave Select Active Interrupt Flag (for Slave Only)
* | | |This bit indicates that the internal slave select signal has changed to active
* | | |It is cleared by software writes one to this bit
* | | |0 = The slave select signal has not changed to active.
* | | |1 = The slave select signal has changed to active.
* | | |Note: The internal slave select signal is active high.
* |[16] |SSLINE |Slave Select Line Bus Status (Read Only)
* | | |This bit is only available in Slave mode
* | | |It used to monitor the current status of the input slave select signal on the bus.
* | | |0 = The slave select line status is 0.
* | | |1 = The slave select line status is 1.
* |[17] |BUSY |Busy Status (Read Only)
* | | |0 = SPI is in idle state.
* | | |1 = SPI is in busy state.
* | | |The following listing are the bus busy conditions:
* | | |a. USPI_PROTCTL[31] = 1 and the TXEMPTY = 0.
* | | |b. For SPI Master mode, the TXEMPTY = 1 but the current transaction is not finished yet.
* | | |c. For SPI Slave mode, the USPI_PROTCTL[31] = 1 and there is serial clock input into the SPI core logic when slave select is active.
* | | |d. For SPI Slave mode, the USPI_PROTCTL[31] = 1 and the transmit buffer or transmit shift register is not empty even if the slave select is inactive.
* |[18] |SLVUDR |Slave Mode Transmit Under-run Status (Read Only)
* | | |In Slave mode, if there is no available transmit data in buffer while transmit data shift out caused by input serial bus clock, this status flag will be set to 1
* | | |This bit indicates whether the current shift-out data of word transmission is switched to TXUDRPOL (USPI_PROTCTL[28]) or not.
* | | |0 = Slave transmit under-run event does not occur.
* | | |1 = Slave transmit under-run event occurs.
*/
__IO uint32_t CTL; /*!< [0x0000] USCI Control Register */
__IO uint32_t INTEN; /*!< [0x0004] USCI Interrupt Enable Register */
__IO uint32_t BRGEN; /*!< [0x0008] USCI Baud Rate Generator Register */
/// @cond HIDDEN_SYMBOLS
__I uint32_t RESERVE0[1];
/// @endcond //HIDDEN_SYMBOLS
__IO uint32_t DATIN0; /*!< [0x0010] USCI Input Data Signal Configuration Register 0 */
/// @cond HIDDEN_SYMBOLS
__I uint32_t RESERVE1[3];
/// @endcond //HIDDEN_SYMBOLS
__IO uint32_t CTLIN0; /*!< [0x0020] USCI Input Control Signal Configuration Register 0 */
/// @cond HIDDEN_SYMBOLS
__I uint32_t RESERVE2[1];
/// @endcond //HIDDEN_SYMBOLS
__IO uint32_t CLKIN; /*!< [0x0028] USCI Input Clock Signal Configuration Register */
__IO uint32_t LINECTL; /*!< [0x002c] USCI Line Control Register */
__O uint32_t TXDAT; /*!< [0x0030] USCI Transmit Data Register */
__I uint32_t RXDAT; /*!< [0x0034] USCI Receive Data Register */
__IO uint32_t BUFCTL; /*!< [0x0038] USCI Transmit/Receive Buffer Control Register */
__IO uint32_t BUFSTS; /*!< [0x003c] USCI Transmit/Receive Buffer Status Register */
__IO uint32_t PDMACTL; /*!< [0x0040] USCI PDMA Control Register */
/// @cond HIDDEN_SYMBOLS
__I uint32_t RESERVE3[4];
/// @endcond //HIDDEN_SYMBOLS
__IO uint32_t WKCTL; /*!< [0x0054] USCI Wake-up Control Register */
__IO uint32_t WKSTS; /*!< [0x0058] USCI Wake-up Status Register */
__IO uint32_t PROTCTL; /*!< [0x005c] USCI Protocol Control Register */
__IO uint32_t PROTIEN; /*!< [0x0060] USCI Protocol Interrupt Enable Register */
__IO uint32_t PROTSTS; /*!< [0x0064] USCI Protocol Status Register */
} USPI_T;
/**
@addtogroup USPI_CONST USPI Bit Field Definition
Constant Definitions for USPI Controller
@{ */
#define USPI_CTL_FUNMODE_Pos (0) /*!< USPI_T::CTL: FUNMODE Position */
#define USPI_CTL_FUNMODE_Msk (0x7ul << USPI_CTL_FUNMODE_Pos) /*!< USPI_T::CTL: FUNMODE Mask */
#define USPI_INTEN_TXSTIEN_Pos (1) /*!< USPI_T::INTEN: TXSTIEN Position */
#define USPI_INTEN_TXSTIEN_Msk (0x1ul << USPI_INTEN_TXSTIEN_Pos) /*!< USPI_T::INTEN: TXSTIEN Mask */
#define USPI_INTEN_TXENDIEN_Pos (2) /*!< USPI_T::INTEN: TXENDIEN Position */
#define USPI_INTEN_TXENDIEN_Msk (0x1ul << USPI_INTEN_TXENDIEN_Pos) /*!< USPI_T::INTEN: TXENDIEN Mask */
#define USPI_INTEN_RXSTIEN_Pos (3) /*!< USPI_T::INTEN: RXSTIEN Position */
#define USPI_INTEN_RXSTIEN_Msk (0x1ul << USPI_INTEN_RXSTIEN_Pos) /*!< USPI_T::INTEN: RXSTIEN Mask */
#define USPI_INTEN_RXENDIEN_Pos (4) /*!< USPI_T::INTEN: RXENDIEN Position */
#define USPI_INTEN_RXENDIEN_Msk (0x1ul << USPI_INTEN_RXENDIEN_Pos) /*!< USPI_T::INTEN: RXENDIEN Mask */
#define USPI_BRGEN_RCLKSEL_Pos (0) /*!< USPI_T::BRGEN: RCLKSEL Position */
#define USPI_BRGEN_RCLKSEL_Msk (0x1ul << USPI_BRGEN_RCLKSEL_Pos) /*!< USPI_T::BRGEN: RCLKSEL Mask */
#define USPI_BRGEN_PTCLKSEL_Pos (1) /*!< USPI_T::BRGEN: PTCLKSEL Position */
#define USPI_BRGEN_PTCLKSEL_Msk (0x1ul << USPI_BRGEN_PTCLKSEL_Pos) /*!< USPI_T::BRGEN: PTCLKSEL Mask */
#define USPI_BRGEN_SPCLKSEL_Pos (2) /*!< USPI_T::BRGEN: SPCLKSEL Position */
#define USPI_BRGEN_SPCLKSEL_Msk (0x3ul << USPI_BRGEN_SPCLKSEL_Pos) /*!< USPI_T::BRGEN: SPCLKSEL Mask */
#define USPI_BRGEN_TMCNTEN_Pos (4) /*!< USPI_T::BRGEN: TMCNTEN Position */
#define USPI_BRGEN_TMCNTEN_Msk (0x1ul << USPI_BRGEN_TMCNTEN_Pos) /*!< USPI_T::BRGEN: TMCNTEN Mask */
#define USPI_BRGEN_TMCNTSRC_Pos (5) /*!< USPI_T::BRGEN: TMCNTSRC Position */
#define USPI_BRGEN_TMCNTSRC_Msk (0x1ul << USPI_BRGEN_TMCNTSRC_Pos) /*!< USPI_T::BRGEN: TMCNTSRC Mask */
#define USPI_BRGEN_CLKDIV_Pos (16) /*!< USPI_T::BRGEN: CLKDIV Position */
#define USPI_BRGEN_CLKDIV_Msk (0x3fful << USPI_BRGEN_CLKDIV_Pos) /*!< USPI_T::BRGEN: CLKDIV Mask */
#define USPI_DATIN0_SYNCSEL_Pos (0) /*!< USPI_T::DATIN0: SYNCSEL Position */
#define USPI_DATIN0_SYNCSEL_Msk (0x1ul << USPI_DATIN0_SYNCSEL_Pos) /*!< USPI_T::DATIN0: SYNCSEL Mask */
#define USPI_DATIN0_ININV_Pos (2) /*!< USPI_T::DATIN0: ININV Position */
#define USPI_DATIN0_ININV_Msk (0x1ul << USPI_DATIN0_ININV_Pos) /*!< USPI_T::DATIN0: ININV Mask */
#define USPI_CTLIN0_SYNCSEL_Pos (0) /*!< USPI_T::CTLIN0: SYNCSEL Position */
#define USPI_CTLIN0_SYNCSEL_Msk (0x1ul << USPI_CTLIN0_SYNCSEL_Pos) /*!< USPI_T::CTLIN0: SYNCSEL Mask */
#define USPI_CTLIN0_ININV_Pos (2) /*!< USPI_T::CTLIN0: ININV Position */
#define USPI_CTLIN0_ININV_Msk (0x1ul << USPI_CTLIN0_ININV_Pos) /*!< USPI_T::CTLIN0: ININV Mask */
#define USPI_CLKIN_SYNCSEL_Pos (0) /*!< USPI_T::CLKIN: SYNCSEL Position */
#define USPI_CLKIN_SYNCSEL_Msk (0x1ul << USPI_CLKIN_SYNCSEL_Pos) /*!< USPI_T::CLKIN: SYNCSEL Mask */
#define USPI_LINECTL_LSB_Pos (0) /*!< USPI_T::LINECTL: LSB Position */
#define USPI_LINECTL_LSB_Msk (0x1ul << USPI_LINECTL_LSB_Pos) /*!< USPI_T::LINECTL: LSB Mask */
#define USPI_LINECTL_DATOINV_Pos (5) /*!< USPI_T::LINECTL: DATOINV Position */
#define USPI_LINECTL_DATOINV_Msk (0x1ul << USPI_LINECTL_DATOINV_Pos) /*!< USPI_T::LINECTL: DATOINV Mask */
#define USPI_LINECTL_CTLOINV_Pos (7) /*!< USPI_T::LINECTL: CTLOINV Position */
#define USPI_LINECTL_CTLOINV_Msk (0x1ul << USPI_LINECTL_CTLOINV_Pos) /*!< USPI_T::LINECTL: CTLOINV Mask */
#define USPI_LINECTL_DWIDTH_Pos (8) /*!< USPI_T::LINECTL: DWIDTH Position */
#define USPI_LINECTL_DWIDTH_Msk (0xful << USPI_LINECTL_DWIDTH_Pos) /*!< USPI_T::LINECTL: DWIDTH Mask */
#define USPI_TXDAT_TXDAT_Pos (0) /*!< USPI_T::TXDAT: TXDAT Position */
#define USPI_TXDAT_TXDAT_Msk (0xfffful << USPI_TXDAT_TXDAT_Pos) /*!< USPI_T::TXDAT: TXDAT Mask */
#define USPI_TXDAT_PORTDIR_Pos (16) /*!< USPI_T::TXDAT: PORTDIR Position */
#define USPI_TXDAT_PORTDIR_Msk (0x1ul << USPI_TXDAT_PORTDIR_Pos) /*!< USPI_T::TXDAT: PORTDIR Mask */
#define USPI_RXDAT_RXDAT_Pos (0) /*!< USPI_T::RXDAT: RXDAT Position */
#define USPI_RXDAT_RXDAT_Msk (0xfffful << USPI_RXDAT_RXDAT_Pos) /*!< USPI_T::RXDAT: RXDAT Mask */
#define USPI_BUFCTL_TXUDRIEN_Pos (6) /*!< USPI_T::BUFCTL: TXUDRIEN Position */
#define USPI_BUFCTL_TXUDRIEN_Msk (0x1ul << USPI_BUFCTL_TXUDRIEN_Pos) /*!< USPI_T::BUFCTL: TXUDRIEN Mask */
#define USPI_BUFCTL_TXCLR_Pos (7) /*!< USPI_T::BUFCTL: TXCLR Position */
#define USPI_BUFCTL_TXCLR_Msk (0x1ul << USPI_BUFCTL_TXCLR_Pos) /*!< USPI_T::BUFCTL: TXCLR Mask */
#define USPI_BUFCTL_RXOVIEN_Pos (14) /*!< USPI_T::BUFCTL: RXOVIEN Position */
#define USPI_BUFCTL_RXOVIEN_Msk (0x1ul << USPI_BUFCTL_RXOVIEN_Pos) /*!< USPI_T::BUFCTL: RXOVIEN Mask */
#define USPI_BUFCTL_RXCLR_Pos (15) /*!< USPI_T::BUFCTL: RXCLR Position */
#define USPI_BUFCTL_RXCLR_Msk (0x1ul << USPI_BUFCTL_RXCLR_Pos) /*!< USPI_T::BUFCTL: RXCLR Mask */
#define USPI_BUFCTL_TXRST_Pos (16) /*!< USPI_T::BUFCTL: TXRST Position */
#define USPI_BUFCTL_TXRST_Msk (0x1ul << USPI_BUFCTL_TXRST_Pos) /*!< USPI_T::BUFCTL: TXRST Mask */
#define USPI_BUFCTL_RXRST_Pos (17) /*!< USPI_T::BUFCTL: RXRST Position */
#define USPI_BUFCTL_RXRST_Msk (0x1ul << USPI_BUFCTL_RXRST_Pos) /*!< USPI_T::BUFCTL: RXRST Mask */
#define USPI_BUFSTS_RXEMPTY_Pos (0) /*!< USPI_T::BUFSTS: RXEMPTY Position */
#define USPI_BUFSTS_RXEMPTY_Msk (0x1ul << USPI_BUFSTS_RXEMPTY_Pos) /*!< USPI_T::BUFSTS: RXEMPTY Mask */
#define USPI_BUFSTS_RXFULL_Pos (1) /*!< USPI_T::BUFSTS: RXFULL Position */
#define USPI_BUFSTS_RXFULL_Msk (0x1ul << USPI_BUFSTS_RXFULL_Pos) /*!< USPI_T::BUFSTS: RXFULL Mask */
#define USPI_BUFSTS_RXOVIF_Pos (3) /*!< USPI_T::BUFSTS: RXOVIF Position */
#define USPI_BUFSTS_RXOVIF_Msk (0x1ul << USPI_BUFSTS_RXOVIF_Pos) /*!< USPI_T::BUFSTS: RXOVIF Mask */
#define USPI_BUFSTS_TXEMPTY_Pos (8) /*!< USPI_T::BUFSTS: TXEMPTY Position */
#define USPI_BUFSTS_TXEMPTY_Msk (0x1ul << USPI_BUFSTS_TXEMPTY_Pos) /*!< USPI_T::BUFSTS: TXEMPTY Mask */
#define USPI_BUFSTS_TXFULL_Pos (9) /*!< USPI_T::BUFSTS: TXFULL Position */
#define USPI_BUFSTS_TXFULL_Msk (0x1ul << USPI_BUFSTS_TXFULL_Pos) /*!< USPI_T::BUFSTS: TXFULL Mask */
#define USPI_BUFSTS_TXUDRIF_Pos (11) /*!< USPI_T::BUFSTS: TXUDRIF Position */
#define USPI_BUFSTS_TXUDRIF_Msk (0x1ul << USPI_BUFSTS_TXUDRIF_Pos) /*!< USPI_T::BUFSTS: TXUDRIF Mask */
#define USPI_PDMACTL_PDMARST_Pos (0) /*!< USPI_T::PDMACTL: PDMARST Position */
#define USPI_PDMACTL_PDMARST_Msk (0x1ul << USPI_PDMACTL_PDMARST_Pos) /*!< USPI_T::PDMACTL: PDMARST Mask */
#define USPI_PDMACTL_TXPDMAEN_Pos (1) /*!< USPI_T::PDMACTL: TXPDMAEN Position */
#define USPI_PDMACTL_TXPDMAEN_Msk (0x1ul << USPI_PDMACTL_TXPDMAEN_Pos) /*!< USPI_T::PDMACTL: TXPDMAEN Mask */
#define USPI_PDMACTL_RXPDMAEN_Pos (2) /*!< USPI_T::PDMACTL: RXPDMAEN Position */
#define USPI_PDMACTL_RXPDMAEN_Msk (0x1ul << USPI_PDMACTL_RXPDMAEN_Pos) /*!< USPI_T::PDMACTL: RXPDMAEN Mask */
#define USPI_PDMACTL_PDMAEN_Pos (3) /*!< USPI_T::PDMACTL: PDMAEN Position */
#define USPI_PDMACTL_PDMAEN_Msk (0x1ul << USPI_PDMACTL_PDMAEN_Pos) /*!< USPI_T::PDMACTL: PDMAEN Mask */
#define USPI_WKCTL_WKEN_Pos (0) /*!< USPI_T::WKCTL: WKEN Position */
#define USPI_WKCTL_WKEN_Msk (0x1ul << USPI_WKCTL_WKEN_Pos) /*!< USPI_T::WKCTL: WKEN Mask */
#define USPI_WKCTL_WKADDREN_Pos (1) /*!< USPI_T::WKCTL: WKADDREN Position */
#define USPI_WKCTL_WKADDREN_Msk (0x1ul << USPI_WKCTL_WKADDREN_Pos) /*!< USPI_T::WKCTL: WKADDREN Mask */
#define USPI_WKCTL_PDBOPT_Pos (2) /*!< USPI_T::WKCTL: PDBOPT Position */
#define USPI_WKCTL_PDBOPT_Msk (0x1ul << USPI_WKCTL_PDBOPT_Pos) /*!< USPI_T::WKCTL: PDBOPT Mask */
#define USPI_WKSTS_WKF_Pos (0) /*!< USPI_T::WKSTS: WKF Position */
#define USPI_WKSTS_WKF_Msk (0x1ul << USPI_WKSTS_WKF_Pos) /*!< USPI_T::WKSTS: WKF Mask */
#define USPI_PROTCTL_SLAVE_Pos (0) /*!< USPI_T::PROTCTL: SLAVE Position */
#define USPI_PROTCTL_SLAVE_Msk (0x1ul << USPI_PROTCTL_SLAVE_Pos) /*!< USPI_T::PROTCTL: SLAVE Mask */
#define USPI_PROTCTL_SLV3WIRE_Pos (1) /*!< USPI_T::PROTCTL: SLV3WIRE Position */
#define USPI_PROTCTL_SLV3WIRE_Msk (0x1ul << USPI_PROTCTL_SLV3WIRE_Pos) /*!< USPI_T::PROTCTL: SLV3WIRE Mask */
#define USPI_PROTCTL_SS_Pos (2) /*!< USPI_T::PROTCTL: SS Position */
#define USPI_PROTCTL_SS_Msk (0x1ul << USPI_PROTCTL_SS_Pos) /*!< USPI_T::PROTCTL: SS Mask */
#define USPI_PROTCTL_AUTOSS_Pos (3) /*!< USPI_T::PROTCTL: AUTOSS Position */
#define USPI_PROTCTL_AUTOSS_Msk (0x1ul << USPI_PROTCTL_AUTOSS_Pos) /*!< USPI_T::PROTCTL: AUTOSS Mask */
#define USPI_PROTCTL_SCLKMODE_Pos (6) /*!< USPI_T::PROTCTL: SCLKMODE Position */
#define USPI_PROTCTL_SCLKMODE_Msk (0x3ul << USPI_PROTCTL_SCLKMODE_Pos) /*!< USPI_T::PROTCTL: SCLKMODE Mask */
#define USPI_PROTCTL_SUSPITV_Pos (8) /*!< USPI_T::PROTCTL: SUSPITV Position */
#define USPI_PROTCTL_SUSPITV_Msk (0xful << USPI_PROTCTL_SUSPITV_Pos) /*!< USPI_T::PROTCTL: SUSPITV Mask */
#define USPI_PROTCTL_TSMSEL_Pos (12) /*!< USPI_T::PROTCTL: TSMSEL Position */
#define USPI_PROTCTL_TSMSEL_Msk (0x7ul << USPI_PROTCTL_TSMSEL_Pos) /*!< USPI_T::PROTCTL: TSMSEL Mask */
#define USPI_PROTCTL_SLVTOCNT_Pos (16) /*!< USPI_T::PROTCTL: SLVTOCNT Position */
#define USPI_PROTCTL_SLVTOCNT_Msk (0x3fful << USPI_PROTCTL_SLVTOCNT_Pos) /*!< USPI_T::PROTCTL: SLVTOCNT Mask */
#define USPI_PROTCTL_TXUDRPOL_Pos (28) /*!< USPI_T::PROTCTL: TXUDRPOL Position */
#define USPI_PROTCTL_TXUDRPOL_Msk (0x1ul << USPI_PROTCTL_TXUDRPOL_Pos) /*!< USPI_T::PROTCTL: TXUDRPOL Mask */
#define USPI_PROTCTL_PROTEN_Pos (31) /*!< USPI_T::PROTCTL: PROTEN Position */
#define USPI_PROTCTL_PROTEN_Msk (0x1ul << USPI_PROTCTL_PROTEN_Pos) /*!< USPI_T::PROTCTL: PROTEN Mask */
#define USPI_PROTIEN_SSINAIEN_Pos (0) /*!< USPI_T::PROTIEN: SSINAIEN Position */
#define USPI_PROTIEN_SSINAIEN_Msk (0x1ul << USPI_PROTIEN_SSINAIEN_Pos) /*!< USPI_T::PROTIEN: SSINAIEN Mask */
#define USPI_PROTIEN_SSACTIEN_Pos (1) /*!< USPI_T::PROTIEN: SSACTIEN Position */
#define USPI_PROTIEN_SSACTIEN_Msk (0x1ul << USPI_PROTIEN_SSACTIEN_Pos) /*!< USPI_T::PROTIEN: SSACTIEN Mask */
#define USPI_PROTIEN_SLVTOIEN_Pos (2) /*!< USPI_T::PROTIEN: SLVTOIEN Position */
#define USPI_PROTIEN_SLVTOIEN_Msk (0x1ul << USPI_PROTIEN_SLVTOIEN_Pos) /*!< USPI_T::PROTIEN: SLVTOIEN Mask */
#define USPI_PROTIEN_SLVBEIEN_Pos (3) /*!< USPI_T::PROTIEN: SLVBEIEN Position */
#define USPI_PROTIEN_SLVBEIEN_Msk (0x1ul << USPI_PROTIEN_SLVBEIEN_Pos) /*!< USPI_T::PROTIEN: SLVBEIEN Mask */
#define USPI_PROTSTS_TXSTIF_Pos (1) /*!< USPI_T::PROTSTS: TXSTIF Position */
#define USPI_PROTSTS_TXSTIF_Msk (0x1ul << USPI_PROTSTS_TXSTIF_Pos) /*!< USPI_T::PROTSTS: TXSTIF Mask */
#define USPI_PROTSTS_TXENDIF_Pos (2) /*!< USPI_T::PROTSTS: TXENDIF Position */
#define USPI_PROTSTS_TXENDIF_Msk (0x1ul << USPI_PROTSTS_TXENDIF_Pos) /*!< USPI_T::PROTSTS: TXENDIF Mask */
#define USPI_PROTSTS_RXSTIF_Pos (3) /*!< USPI_T::PROTSTS: RXSTIF Position */
#define USPI_PROTSTS_RXSTIF_Msk (0x1ul << USPI_PROTSTS_RXSTIF_Pos) /*!< USPI_T::PROTSTS: RXSTIF Mask */
#define USPI_PROTSTS_RXENDIF_Pos (4) /*!< USPI_T::PROTSTS: RXENDIF Position */
#define USPI_PROTSTS_RXENDIF_Msk (0x1ul << USPI_PROTSTS_RXENDIF_Pos) /*!< USPI_T::PROTSTS: RXENDIF Mask */
#define USPI_PROTSTS_SLVTOIF_Pos (5) /*!< USPI_T::PROTSTS: SLVTOIF Position */
#define USPI_PROTSTS_SLVTOIF_Msk (0x1ul << USPI_PROTSTS_SLVTOIF_Pos) /*!< USPI_T::PROTSTS: SLVTOIF Mask */
#define USPI_PROTSTS_SLVBEIF_Pos (6) /*!< USPI_T::PROTSTS: SLVBEIF Position */
#define USPI_PROTSTS_SLVBEIF_Msk (0x1ul << USPI_PROTSTS_SLVBEIF_Pos) /*!< USPI_T::PROTSTS: SLVBEIF Mask */
#define USPI_PROTSTS_SSINAIF_Pos (8) /*!< USPI_T::PROTSTS: SSINAIF Position */
#define USPI_PROTSTS_SSINAIF_Msk (0x1ul << USPI_PROTSTS_SSINAIF_Pos) /*!< USPI_T::PROTSTS: SSINAIF Mask */
#define USPI_PROTSTS_SSACTIF_Pos (9) /*!< USPI_T::PROTSTS: SSACTIF Position */
#define USPI_PROTSTS_SSACTIF_Msk (0x1ul << USPI_PROTSTS_SSACTIF_Pos) /*!< USPI_T::PROTSTS: SSACTIF Mask */
#define USPI_PROTSTS_SSLINE_Pos (16) /*!< USPI_T::PROTSTS: SSLINE Position */
#define USPI_PROTSTS_SSLINE_Msk (0x1ul << USPI_PROTSTS_SSLINE_Pos) /*!< USPI_T::PROTSTS: SSLINE Mask */
#define USPI_PROTSTS_BUSY_Pos (17) /*!< USPI_T::PROTSTS: BUSY Position */
#define USPI_PROTSTS_BUSY_Msk (0x1ul << USPI_PROTSTS_BUSY_Pos) /*!< USPI_T::PROTSTS: BUSY Mask */
#define USPI_PROTSTS_SLVUDR_Pos (18) /*!< USPI_T::PROTSTS: SLVUDR Position */
#define USPI_PROTSTS_SLVUDR_Msk (0x1ul << USPI_PROTSTS_SLVUDR_Pos) /*!< USPI_T::PROTSTS: SLVUDR Mask */
/**@}*/ /* USPI_CONST */
/**@}*/ /* end of USPI register group */
/**@}*/ /* end of REGISTER group */
#if defined ( __CC_ARM )
#pragma no_anon_unions
#endif
#endif /* __USPI_REG_H__ */
