| /**************************************************************************** |
| * arch/arm/src/stm32wb/hardware/stm32wb_uart.h |
| * |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. The |
| * ASF licenses this file to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance with the |
| * License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT |
| * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the |
| * License for the specific language governing permissions and limitations |
| * under the License. |
| * |
| ****************************************************************************/ |
| |
| #ifndef __ARCH_ARM_SRC_STM32WB_HARDWARE_STM32WB_UART_H |
| #define __ARCH_ARM_SRC_STM32WB_HARDWARE_STM32WB_UART_H |
| |
| /**************************************************************************** |
| * Included Files |
| ****************************************************************************/ |
| |
| #include <nuttx/config.h> |
| |
| #include "chip.h" |
| |
| /**************************************************************************** |
| * Pre-processor Definitions |
| ****************************************************************************/ |
| |
| /* Register Offsets *********************************************************/ |
| |
| #define STM32WB_USART_CR1_OFFSET 0x0000 /* Control Register 1 */ |
| #define STM32WB_USART_CR2_OFFSET 0x0004 /* Control Register 2 */ |
| #define STM32WB_USART_CR3_OFFSET 0x0008 /* Control Register 3 */ |
| #define STM32WB_USART_BRR_OFFSET 0x000c /* Baud Rate Register */ |
| #define STM32WB_USART_GTPR_OFFSET 0x0010 /* Guard Time and Prescaler Register */ |
| #define STM32WB_USART_RTOR_OFFSET 0x0014 /* Receiver Timeout Register */ |
| #define STM32WB_USART_RQR_OFFSET 0x0018 /* Request Register */ |
| #define STM32WB_USART_ISR_OFFSET 0x001c /* Interrupt and Status Register */ |
| #define STM32WB_USART_ICR_OFFSET 0x0020 /* Interrupt flag Clear Register */ |
| #define STM32WB_USART_RDR_OFFSET 0x0024 /* Receive Data Register */ |
| #define STM32WB_USART_TDR_OFFSET 0x0028 /* Transmit Data Register */ |
| #define STM32WB_USART_PRESC_OFFSET 0x002c /* Prescaler Register */ |
| |
| /* Register Addresses *******************************************************/ |
| |
| #if STM32WB_NUSART > 0 |
| # define STM32WB_USART1_CR1 (STM32WB_USART1_BASE + STM32WB_USART_CR1_OFFSET) |
| # define STM32WB_USART1_CR2 (STM32WB_USART1_BASE + STM32WB_USART_CR2_OFFSET) |
| # define STM32WB_USART1_CR3 (STM32WB_USART1_BASE + STM32WB_USART_CR3_OFFSET) |
| # define STM32WB_USART1_BRR (STM32WB_USART1_BASE + STM32WB_USART_BRR_OFFSET) |
| # define STM32WB_USART1_GTPR (STM32WB_USART1_BASE + STM32WB_USART_GTPR_OFFSET) |
| # define STM32WB_USART1_RTOR (STM32WB_USART1_BASE + STM32WB_USART_RTOR_OFFSET) |
| # define STM32WB_USART1_RQR (STM32WB_USART1_BASE + STM32WB_USART_RQR_OFFSET) |
| # define STM32WB_USART1_ISR (STM32WB_USART1_BASE + STM32WB_USART_ISR_OFFSET) |
| # define STM32WB_USART1_ICR (STM32WB_USART1_BASE + STM32WB_USART_ICR_OFFSET) |
| # define STM32WB_USART1_RDR (STM32WB_USART1_BASE + STM32WB_USART_RDR_OFFSET) |
| # define STM32WB_USART1_TDR (STM32WB_USART1_BASE + STM32WB_USART_TDR_OFFSET) |
| # define STM32WB_USART1_PRESC (STM32WB_USART1_BASE + STM32WB_USART_PRESC_OFFSET) |
| #endif |
| |
| /* Register Bitfield Definitions ********************************************/ |
| |
| /* Control Register 1 */ |
| |
| #define USART_CR1_UE (1 << 0) /* Bit 0: USART Enable */ |
| #define USART_CR1_UESM (1 << 1) /* Bit 1: USART Enable in low power Mode */ |
| #define USART_CR1_RE (1 << 2) /* Bit 2: Receiver Enable */ |
| #define USART_CR1_TE (1 << 3) /* Bit 3: Transmitter Enable */ |
| #define USART_CR1_IDLEIE (1 << 4) /* Bit 4: IDLE Interrupt Enable */ |
| #define USART_CR1_RXFNEIE (1 << 5) /* Bit 5: in FIFO mode - Rx FIFO Not Empty Interrupt Enable */ |
| #define USART_CR1_RXNEIE (1 << 5) /* Bit 5: in Non-FIFO mode - Rx Data Register Not Empty Interrupt Enable */ |
| #define USART_CR1_TCIE (1 << 6) /* Bit 6: Transmission Complete Interrupt Enable */ |
| #define USART_CR1_TXFNFIE (1 << 7) /* Bit 7: in FIFO mode - Tx FIFO Not Full Interrupt Enable */ |
| #define USART_CR1_TXEIE (1 << 7) /* Bit 7: in Non-FIFO mode - Tx Data Register Empty Interrupt Enable */ |
| #define USART_CR1_PEIE (1 << 8) /* Bit 8: PE Interrupt Enable */ |
| #define USART_CR1_PS (1 << 9) /* Bit 9: Parity Selection */ |
| #define USART_CR1_PCE (1 << 10) /* Bit 10: Parity Control Enable */ |
| #define USART_CR1_WAKE (1 << 11) /* Bit 11: Receiver Wakeup method */ |
| #define USART_CR1_M0 (1 << 12) /* Bit 12: Word length - Bit 0 */ |
| #define USART_CR1_MME (1 << 13) /* Bit 13: Mute Mode Enable */ |
| #define USART_CR1_CMIE (1 << 14) /* Bit 14: Character match interrupt enable */ |
| #define USART_CR1_OVER8 (1 << 15) /* Bit 15: Oversampling by 8-bit or 16-bit mode */ |
| |
| #define USART_CR1_DEDT_SHIFT (16) /* Bits 20:16 - Driver Enable Deassertion Time, in 1/16ths or 1/8ths bit time */ |
| #define USART_CR1_DEDT_MASK (0x1f << USART_CR1_DEDT_SHIFT) |
| # define USART_CR1_DEDT(n) (((n) << USART_CR1_DEDT_SHIFT) & USART_CR1_DEDT_MASK) |
| |
| #define USART_CR1_DEAT_SHIFT (21) /* Bits 25:21 - Driver Enable Assertion Time, in 1/16ths or 1/8ths bit time */ |
| #define USART_CR1_DEAT_MASK (0x1f << USART_CR1_DEAT_SHIFT) |
| # define USART_CR1_DEAT(n) (((n) << USART_CR1_DEAT_SHIFT) & USART_CR1_DEAT_MASK) |
| |
| #define USART_CR1_RTOIE (1 << 26) /* Bit 26: Receive Time Out interrupt enable */ |
| #define USART_CR1_EOBIE (1 << 27) /* Bit 27: End of Block interrupt enable */ |
| #define USART_CR1_M1 (1 << 28) /* Bit 28: Word length - Bit 1 */ |
| #define USART_CR1_FIFOEN (1 << 29) /* Bit 29: FIFO mode enable */ |
| #define USART_CR1_TXFEIE (1 << 30) /* Bit 30: TXFIFO empty interrupt enable */ |
| #define USART_CR1_RXFFIE (1 << 31) /* Bit 31: RXFIFO Full interrupt enable */ |
| #define USART_CR1_M_MASK (USART_CR1_M0 | USART_CR1_M1) |
| |
| #define USART_CR1_ALLINTS \ |
| (USART_CR1_IDLEIE | USART_CR1_RXNEIE | USART_CR1_TCIE | USART_CR1_TXEIE | \ |
| USART_CR1_PEIE | USART_CR1_CMIE | USART_CR1_RTOIE | USART_CR1_EOBIE | \ |
| USART_CR1_TXFEIE | USART_CR1_RXFFIE) |
| |
| /* Control Register 2 */ |
| |
| #define USART_CR2_SLVEN (1 << 0) /* Bit 0: Synchronous Slave Mode Enable */ |
| #define USART_CR2_DIS_NSS (1 << 3) /* Bit 3: Slave Select (NSS) Pin Ignore For SPI */ |
| #define USART_CR2_ADDM7 (1 << 4) /* Bit 4: 7-Bit / 4-Bit Address Detection */ |
| #define USART_CR2_LBDL (1 << 5) /* Bit 5: LIN Break Detection Length */ |
| #define USART_CR2_LBDIE (1 << 6) /* Bit 6: LIN Break Detection Interrupt Enable */ |
| #define USART_CR2_LBCL (1 << 8) /* Bit 8: Last Bit Clock pulse */ |
| #define USART_CR2_CPHA (1 << 9) /* Bit 9: Clock Phase */ |
| #define USART_CR2_CPOL (1 << 10) /* Bit 10: Clock Polarity */ |
| #define USART_CR2_CLKEN (1 << 11) /* Bit 11: Clock Enable */ |
| |
| #define USART_CR2_STOP_SHIFT (12) /* Bits 13-12: Stop bits */ |
| #define USART_CR2_STOP_MASK (0x3 << USART_CR2_STOP_SHIFT) |
| # define USART_CR2_STOP1 (0x0 << USART_CR2_STOP_SHIFT) /* 00: 1 Stop bit */ |
| # define USART_CR2_STOP0p5 (0x1 << USART_CR2_STOP_SHIFT) /* 01: 0.5 Stop bits */ |
| # define USART_CR2_STOP2 (0x2 << USART_CR2_STOP_SHIFT) /* 10: 2 Stop bits */ |
| # define USART_CR2_STOP1p5 (0x3 << USART_CR2_STOP_SHIFT) /* 11: 1.5 Stop bits */ |
| |
| #define USART_CR2_LINEN (1 << 14) /* Bit 14: LIN Mode Enable */ |
| #define USART_CR2_SWAP (1 << 15) /* Bit 15: Swap TX/RX Pins */ |
| #define USART_CR2_RXINV (1 << 16) /* Bit 16: RX Pin Active Level Inversion */ |
| #define USART_CR2_TXINV (1 << 17) /* Bit 17: TX Pin Active Level Inversion */ |
| #define USART_CR2_DATAINV (1 << 18) /* Bit 18: Binary Data Inversion */ |
| #define USART_CR2_MSBFIRST (1 << 19) /* Bit 19: MSB First */ |
| #define USART_CR2_ABREN (1 << 20) /* Bit 20: Auto Baud-Rate Enable */ |
| |
| #define USART_CR2_ABRMOD_SHIFT (21) /* Bits 22-21: Auto Baud-Rate detection mode */ |
| #define USART_CR2_ABRMOD_MASK (0x3 << USART_CR2_ABRMOD_SHIFT) |
| # define USART_CR2_ABRMOD_STARTBIT (0x0 << USART_CR2_ABRMOD_SHIFT) /* 00: Measurement of Start Bit */ |
| # define USART_CR2_ABRMOD_FALLEDGE (0x1 << USART_CR2_ABRMOD_SHIFT) /* 01: Falling Edge to Falling Edge */ |
| # define USART_CR2_ABRMOD_7F_FRAME (0x2 << USART_CR2_ABRMOD_SHIFT) /* 10: 0x7f Frame detection */ |
| # define USART_CR2_ABRMOD_55_FRAME (0x3 << USART_CR2_ABRMOD_SHIFT) /* 11: 0x55 Frame detection */ |
| |
| #define USART_CR2_RTOEN (1 << 23) /* Bit 23: Receiver Time-Out Enable */ |
| |
| #define USART_CR2_ADD_SHIFT (24) /* Bits 31-24: Address of the USART Node */ |
| #define USART_CR2_ADD_MASK (0xff << USART_CR2_ADD_SHIFT) |
| |
| /* Control Register 3 */ |
| |
| #define USART_CR3_EIE (1 << 0) /* Bit 0: Error Interrupt Enable */ |
| #define USART_CR3_IREN (1 << 1) /* Bit 1: IrDA Mode Enable */ |
| #define USART_CR3_IRLP (1 << 2) /* Bit 2: IrDA Low-Power */ |
| #define USART_CR3_HDSEL (1 << 3) /* Bit 3: Half-Duplex Selection */ |
| #define USART_CR3_NACK (1 << 4) /* Bit 4: SmartCard NACK Enable */ |
| #define USART_CR3_SCEN (1 << 5) /* Bit 5: SmartCard Mode Enable */ |
| #define USART_CR3_DMAR (1 << 6) /* Bit 6: DMA Enable Receiver */ |
| #define USART_CR3_DMAT (1 << 7) /* Bit 7: DMA Enable Transmitter */ |
| #define USART_CR3_RTSE (1 << 8) /* Bit 8: RTS Enable */ |
| #define USART_CR3_CTSE (1 << 9) /* Bit 9: CTS Enable */ |
| #define USART_CR3_CTSIE (1 << 10) /* Bit 10: CTS Interrupt Enable */ |
| #define USART_CR3_ONEBIT (1 << 11) /* Bit 11: One Sample Bit Method Enable */ |
| #define USART_CR3_OVRDIS (1 << 12) /* Bit 12: Overrun Disable */ |
| #define USART_CR3_DDRE (1 << 13) /* Bit 13: DMA Disable on Reception Error */ |
| #define USART_CR3_DEM (1 << 14) /* Bit 14: Driver Enable Mode */ |
| #define USART_CR3_DEP (1 << 15) /* Bit 15: Driver Enable Polarity selection */ |
| |
| #define USART_CR3_SCARCNT_SHIFT (17) /* Bits 19-17: SmartCard Auto-Retry Count */ |
| #define USART_CR3_SCARCNT_MASK (0x7 << USART_CR3_SCARCNT_SHIFT) |
| # define USART_CR3_SCARCNT(n) (((n) << USART_CR3_SCARCNT_SHIFT) & USART_CR3_SCARCNT_MASK) |
| |
| #define USART_CR3_WUS_SHIFT (20) /* Bits 21-20: Wake Up From Low Power Mode Interrupt Flag Selection) */ |
| #define USART_CR3_WUS_MASK (0x3 << USART_CR3_WUS_SHIFT) |
| # define USART_CR3_WUS_ADDR (0x0 << USART_CR3_WUS_SHIFT) /* 00: On Address Match */ |
| # define USART_CR3_WUS_STARTBIT (0x2 << USART_CR3_WUS_SHIFT) /* 10: On Start Bit Detection */ |
| # define USART_CR3_WUS_RXFNE (0x3 << USART_CR3_WUS_SHIFT) /* 11: On RXNE/RXFNE */ |
| |
| #define USART_CR3_WUFIE (1 << 22) /* Bit 22: Wake Up From Low Power Mode Interrupt Enable */ |
| #define USART_CR3_TXFTIE (1 << 23) /* Bit 23: Transmit FIFO Threshold Interrupt Enable */ |
| #define USART_CR3_TCBGTIE (1 << 24) /* Bit 24: Transmit Complete Before Guard Time Interrupt Enable */ |
| |
| #define USART_CR3_RXFTCFG_SHIFT (25) /* Bits 27-25 Receive FIFO Threshold Configuration */ |
| #define USART_CR3_RXFTCFG_MASK (0x7 << USART_CR3_RXFTCFG_SHIFT) |
| # define USART_CR3_RXFTCFG_1_8 (0x0 << USART_CR3_RXFTCFG_SHIFT) /* 000: Rx FIFO Reaches 1/8Th Depth */ |
| # define USART_CR3_RXFTCFG_1_4 (0x1 << USART_CR3_RXFTCFG_SHIFT) /* 001: Rx FIFO Reaches 1/4Th Depth */ |
| # define USART_CR3_RXFTCFG_1_2 (0x2 << USART_CR3_RXFTCFG_SHIFT) /* 010: Rx FIFO Reaches 1/2 Depth */ |
| # define USART_CR3_RXFTCFG_3_4 (0x3 << USART_CR3_RXFTCFG_SHIFT) /* 011: Rx FIFO Reaches 3/4Ths Depth */ |
| # define USART_CR3_RXFTCFG_7_8 (0x4 << USART_CR3_RXFTCFG_SHIFT) /* 100: Rx FIFO Reaches 7/8Ths Depth */ |
| # define USART_CR3_RXFTCFG_FULL (0x5 << USART_CR3_RXFTCFG_SHIFT) /* 101: Rx FIFO Is Full */ |
| |
| #define USART_CR3_RXFTIE (1 << 28) /* Bit 28: Receive FIFO Threshold Interrupt Enable */ |
| |
| #define USART_CR3_TXFTCFG_SHIFT (29) /* Bits 31-29: Transmit FIFO Threshold Configuration */ |
| #define USART_CR3_TXFTCFG_MASK (0x7 << USART_CR3_TXFTCFG_SHIFT) |
| # define USART_CR3_TXFTCFG_1_8 (0x0 << USART_CR3_TXFTCFG_SHIFT) /* 000: Tx FIFO Reaches 1/8Th Depth */ |
| # define USART_CR3_TXFTCFG_1_4 (0x1 << USART_CR3_TXFTCFG_SHIFT) /* 001: Tx FIFO Reaches 1/4Th Depth */ |
| # define USART_CR3_TXFTCFG_1_2 (0x2 << USART_CR3_TXFTCFG_SHIFT) /* 010: Tx FIFO Reaches 1/2 Depth */ |
| # define USART_CR3_TXFTCFG_3_4 (0x3 << USART_CR3_TXFTCFG_SHIFT) /* 011: Tx FIFO Reaches 3/4Ths Depth */ |
| # define USART_CR3_TXFTCFG_7_8 (0x4 << USART_CR3_TXFTCFG_SHIFT) /* 100: Tx FIFO Reaches 7/8Ths Depth */ |
| # define USART_CR3_TXFTCFG_FULL (0x5 << USART_CR3_TXFTCFG_SHIFT) /* 101: Tx FIFO Is Empty */ |
| |
| /* Baud Rate Register (USART) */ |
| |
| #define USART_BRR_FRAC_SHIFT (0) /* Bits 3-0: fraction of USARTDIV */ |
| #define USART_BRR_FRAC_MASK (0x0f << USART_BRR_FRAC_SHIFT) |
| |
| #define USART_BRR_MANT_SHIFT (4) /* Bits 15-4: mantissa of USARTDIV */ |
| #define USART_BRR_MANT_MASK (0x0fff << USART_BRR_MANT_SHIFT) |
| |
| /* Baud Rate Register (LPUART) */ |
| |
| #define LPUART_BRR_SHIFT (0) /* Bits 19-0: LPUART baud rate */ |
| #define LPUART_BRR_MASK (0xfffff << LPUART_BRR_SHIFT) |
| #define LPUART_BRR_MIN (0x300) /* Minimum value permitted for BRR register */ |
| |
| /* Guard Time and Prescaler Register */ |
| |
| #define USART_GTPR_PSC_SHIFT (0) /* Bits 0-7: Prescaler value */ |
| #define USART_GTPR_PSC_MASK (0xff << USART_GTPR_PSC_SHIFT) |
| # define USART_GTPR_PSC(n) (((n) << USART_GTPR_PSC_SHIFT) & USART_GTPR_PSC_MASK) |
| |
| #define USART_GTPR_GT_SHIFT (8) /* Bits 8-15: Guard Time value */ |
| #define USART_GTPR_GT_MASK (0xff << USART_GTPR_GT_SHIFT) |
| # define USART_GTPR_GT(n) (((n) << USART_GTPR_GT_SHIFT) & USART_GTPR_GT_MASK) |
| |
| /* Receiver Timeout Register */ |
| |
| #define USART_RTOR_RTO_SHIFT (0) /* Bits 23-0: Receiver Time Out value */ |
| #define USART_RTOR_RTO_MASK (0xffffff << USART_RTOR_RTO_SHIFT) |
| # define USART_RTOR_RTO(n) (((n) << USART_RTOR_RTO_SHIFT) & USART_RTOR_RTO_MASK) |
| |
| #define USART_RTOR_BLEN_SHIFT (24) /* Bits 31-24: Block Length */ |
| #define USART_RTOR_BLEN_MASK (0xff << USART_RTOR_BLEN_SHIFT) |
| # define USART_RTOR_BLEN(n) (((n) << USART_RTOR_BLEN_SHIFT) & USART_RTOR_BLEN_MASK) |
| |
| /* Request Register */ |
| |
| #define USART_RQR_ABRRQ (1 << 0) /* Bit 0 - Auto-Baud Rate Request */ |
| #define USART_RQR_SBKRQ (1 << 1) /* Bit 1 - Send Break Request */ |
| #define USART_RQR_MMRQ (1 << 2) /* Bit 2 - Mute Mode Request */ |
| #define USART_RQR_RXFRQ (1 << 3) /* Bit 3 - Receive Data Flush Request */ |
| #define USART_RQR_TXFRQ (1 << 4) /* Bit 4 - Transmit Data Flush Request */ |
| |
| /* Interrupt and Status Register */ |
| |
| #define USART_ISR_PE (1 << 0) /* Bit 0 - Parity Error */ |
| #define USART_ISR_FE (1 << 1) /* Bit 1 - Framing Error */ |
| #define USART_ISR_NE (1 << 2) /* Bit 2 - Noise Detected Flag */ |
| #define USART_ISR_ORE (1 << 3) /* Bit 3 - Overrun Error */ |
| #define USART_ISR_IDLE (1 << 4) /* Bit 4 - Idle Line Detected */ |
| #define USART_ISR_RXFNE (1 << 5) /* Bit 5 (When FIFO in use) - Rx FIFO Not Empty */ |
| #define USART_ISR_RXNE (1 << 5) /* Bit 5 (When FIFO not in use) - Rx Data Register Not Empty */ |
| #define USART_ISR_TC (1 << 6) /* Bit 6 - Transmission Complete */ |
| #define USART_ISR_TXFNF (1 << 7) /* Bit 7 (When FIFO in use) - Tx FIFO Not Full */ |
| #define USART_ISR_TXE (1 << 7) /* Bit 7 (When FIFO not in use) - Tx Data Register Empty */ |
| #define USART_ISR_LBDF (1 << 8) /* Bit 8 - LIN Break Detection Flag */ |
| #define USART_ISR_CTSIF (1 << 9) /* Bit 9 - CTS Interrupt Flag */ |
| #define USART_ISR_CTS (1 << 10) /* Bit 10 - CTS Flag */ |
| #define USART_ISR_RTOF (1 << 11) /* Bit 11 - Receiver Time Out */ |
| #define USART_ISR_EOBF (1 << 12) /* Bit 12 - End of Block Flag */ |
| #define USART_ISR_UDR (1 << 13) /* Bit 13 - SPI Slave Underrun Error Flag */ |
| #define USART_ISR_ABRE (1 << 14) /* Bit 14 - Auto Baud Rate Error */ |
| #define USART_ISR_ABRF (1 << 15) /* Bit 15 - Auto Baud Rate Flag */ |
| #define USART_ISR_BUSY (1 << 16) /* Bit 16 - Busy Flag */ |
| #define USART_ISR_CMF (1 << 17) /* Bit 17 - Character Match Flag */ |
| #define USART_ISR_SBKF (1 << 18) /* Bit 18 - Send Break Flag */ |
| #define USART_ISR_RWU (1 << 19) /* Bit 19 - Receive Wake Up From Mute Mode Flag */ |
| #define USART_ISR_WUF (1 << 20) /* Bit 20 - Wake Up From Stop Mode Flag */ |
| #define USART_ISR_TEACK (1 << 21) /* Bit 21 - Transmit Enable Acknowledge Flag */ |
| #define USART_ISR_REACK (1 << 22) /* Bit 22 - Receive Enable Acknowledge Flag */ |
| #define USART_ISR_TXFE (1 << 23) /* Bit 23 (When FIFO in use) - Tx FIFO Empty */ |
| #define USART_ISR_RXFF (1 << 24) /* Bit 24 (When FIFO in use) - Rx FIFO Full */ |
| #define USART_ISR_TCBGT (1 << 25) /* Bit 25 - Transmission Complete Before Guard Time Completion */ |
| #define USART_ISR_RXFT (1 << 26) /* Bit 26 (When FIFO in use) - Rx FIFO Threshold Flag */ |
| #define USART_ISR_TXFT (1 << 27) /* Bit 27 (When FIFO in use) - Tx FIFO Threshold Fla */ |
| #define USART_ISR_ALLBITS (0x0fffffff) |
| |
| /* Interrupt Flag Clear Register */ |
| |
| #define USART_ICR_PECF (1 << 0) /* Bit 0 - Parity Error Clear Flag */ |
| #define USART_ICR_FECF (1 << 1) /* Bit 1 - Framing Error Clear Flag */ |
| #define USART_ICR_NCF (1 << 2) /* Bit 2 - Noise detected Clear Flag */ |
| #define USART_ICR_ORECF (1 << 3) /* Bit 3 - OverRun Error Clear Flag */ |
| #define USART_ICR_IDLECF (1 << 4) /* Bit 4 - Idle Line Detected Clear Flag */ |
| #define USART_ICR_TXFECF (1 << 5) /* Bit 5 - Tx FIFO Empty Clear Flag */ |
| #define USART_ICR_TCCF (1 << 6) /* Bit 6 - Transmission Complete Clear Flag */ |
| #define USART_ICR_TCBGTCF (1 << 7) /* Bit 7 - Transmission Complete Before Guard Time Clear Flag */ |
| #define USART_ICR_LBDCF (1 << 8) /* Bit 8 - LIN Break Detection Clear Flag */ |
| #define USART_ICR_CTSCF (1 << 9) /* Bit 9 - CTS Interrupt Clear Flag */ |
| #define USART_ICR_RTOCF (1 << 11) /* Bit 11 - Receiver Timeout Clear Flag */ |
| #define USART_ICR_EOBCF (1 << 12) /* Bit 12 - End of Block Clear Flag */ |
| #define USART_ICR_UDRCF (1 << 13) /* Bit 13 - SPI Slave Underrun Clear Flag */ |
| #define USART_ICR_CMCF (1 << 17) /* Bit 17 - Character Match Clear Flag */ |
| #define USART_ICR_WUCF (1 << 20) /* Bit 20 - Wake Up From Stop Mode Clear Flag */ |
| |
| /* Receive Data Register */ |
| |
| #define USART_RDR_SHIFT (0) /* Bits 8-0: Receive Data value */ |
| #define USART_RDR_MASK (0x1ff << USART_RDR_SHIFT) |
| # define USART_RDR(n) (((n) << USART_RDR_SHIFT) & USART_RDR_MASK) |
| |
| /* Transmit Data Register */ |
| |
| #define USART_TDR_SHIFT (0) /* Bits 8-0: Transmit Data value */ |
| #define USART_TDR_MASK (0x1ff << USART_TDR_SHIFT) |
| # define USART_TDR(n) (((n) << USART_TDR_SHIFT) & USART_TDR_MASK) |
| |
| /* Prescaler Register */ |
| |
| #define USART_PRESC_PRESCALER_SHIFT (0) /* Bits 3-0: Clock Prescaler */ |
| #define USART_PRESC_PRESCALER_MASK (0xf << USART_PRESC_PRESCALER_SHIFT) |
| #define USART_PRESC_PRESCALER_1 (0x0 << USART_PRESC_PRESCALER_SHIFT) /* 0000: not divided */ |
| #define USART_PRESC_PRESCALER_2 (0x1 << USART_PRESC_PRESCALER_SHIFT) /* 0001: divided by 2 */ |
| #define USART_PRESC_PRESCALER_4 (0x2 << USART_PRESC_PRESCALER_SHIFT) /* 0010: divided by 4 */ |
| #define USART_PRESC_PRESCALER_6 (0x3 << USART_PRESC_PRESCALER_SHIFT) /* 0011: divided by 6 */ |
| #define USART_PRESC_PRESCALER_8 (0x4 << USART_PRESC_PRESCALER_SHIFT) /* 0100: divided by 8 */ |
| #define USART_PRESC_PRESCALER_10 (0x5 << USART_PRESC_PRESCALER_SHIFT) /* 0101: divided by 10 */ |
| #define USART_PRESC_PRESCALER_12 (0x6 << USART_PRESC_PRESCALER_SHIFT) /* 0110: divided by 12 */ |
| #define USART_PRESC_PRESCALER_16 (0x7 << USART_PRESC_PRESCALER_SHIFT) /* 0111: divided by 16 */ |
| #define USART_PRESC_PRESCALER_32 (0x8 << USART_PRESC_PRESCALER_SHIFT) /* 1000: divided by 32 */ |
| #define USART_PRESC_PRESCALER_64 (0x9 << USART_PRESC_PRESCALER_SHIFT) /* 1001: divided by 64 */ |
| #define USART_PRESC_PRESCALER_128 (0xa << USART_PRESC_PRESCALER_SHIFT) /* 1010: divided by 128 */ |
| #define USART_PRESC_PRESCALER_256 (0xb << USART_PRESC_PRESCALER_SHIFT) /* 1011: divided by 256 */ |
| |
| /**************************************************************************** |
| * Public Types |
| ****************************************************************************/ |
| |
| /**************************************************************************** |
| * Public Data |
| ****************************************************************************/ |
| |
| /**************************************************************************** |
| * Public Function Prototypes |
| ****************************************************************************/ |
| |
| #endif /* __ARCH_ARM_SRC_STM32WB_HARDWARE_STM32WB_UART_H */ |
