45.7.19 USART Channel Status Register (LIN_MODE)
This configuration is relevant only if USART_MODE = 0xA or 0xB in the USART Mode Register.
| Name: | US_CSR (LIN_MODE) |
| Offset: | 0x0014 |
| Reset: | 0x00000000 |
| Property: | Read-only |
| Bit | 31 | 30 | 29 | 28 | 27 | 26 | 25 | 24 | |
| LINHTE | LINSTE | LINSNRE | LINCE | LINIPE | LINISFE | LINBE | |||
| Access | R | R | R | R | R | R | R | ||
| Reset | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Bit | 23 | 22 | 21 | 20 | 19 | 18 | 17 | 16 | |
| LINBLS | |||||||||
| Access | R | ||||||||
| Reset | 0 |
| Bit | 15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 | |
| LINTC | LINID | LINBK | TXEMPTY | TIMEOUT | |||||
| Access | R | R | R | R | R | ||||
| Reset | 0 | 0 | 0 | 0 | 0 |
| Bit | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 | |
| PARE | FRAME | OVRE | TXRDY | RXRDY | |||||
| Access | R | R | R | R | R | ||||
| Reset | 0 | 0 | 0 | 0 | 0 |
Bit 31 – LINHTE LIN Header Timeout Error (cleared by writing a one to bit US_CR.RSTSTA)
| Value | Description |
|---|---|
| 0 | No LIN header timeout error has been detected since the last RSTSTA. |
| 1 | A LIN header timeout error has been detected since the last RSTSTA. |
Bit 30 – LINSTE LIN Synch Tolerance Error (cleared by writing a one to bit US_CR.RSTSTA)
| Value | Description |
|---|---|
| 0 | No LIN synch tolerance error has been detected since the last RSTSTA. |
| 1 | A LIN synch tolerance error has been detected since the last RSTSTA. |
Bit 29 – LINSNRE LIN Client Not Responding Error (cleared by writing a one to bit US_CR.RSTSTA)
| Value | Description |
|---|---|
| 0 | No LIN Client not responding error has been detected since the last RSTSTA. |
| 1 | A LIN Client not responding error has been detected since the last RSTSTA. |
Bit 28 – LINCE LIN Checksum Error (cleared by writing a one to bit US_CR.RSTSTA)
| Value | Description |
|---|---|
| 0 | No LIN checksum error has been detected since the last RSTSTA. |
| 1 | A LIN checksum error has been detected since the last RSTSTA. |
Bit 27 – LINIPE LIN Identifier Parity Error (cleared by writing a one to bit US_CR.RSTSTA)
| Value | Description |
|---|---|
| 0 | No LIN identifier parity error has been detected since the last RSTSTA. |
| 1 | A LIN identifier parity error has been detected since the last RSTSTA. |
Bit 26 – LINISFE LIN Inconsistent Synch Field Error (cleared by writing a one to bit US_CR.RSTSTA)
| Value | Description |
|---|---|
| 0 | No LIN inconsistent synch field error has been detected since the last RSTSTA |
| 1 | The USART is configured as a Client node and a LIN Inconsistent synch field error has been detected since the last RSTSTA. |
Bit 25 – LINBE LIN Bit Error (cleared by writing a one to bit US_CR.RSTSTA)
| Value | Description |
|---|---|
| 0 | No bit error has been detected since the last RSTSTA. |
| 1 | A bit error has been detected since the last RSTSTA. |
Bit 23 – LINBLS LIN Bus Line Status
| Value | Description |
|---|---|
| 0 | LIN bus line is set to 0. |
| 1 | LIN bus line is set to 1. |
Bit 15 – LINTC LIN Transfer Completed (cleared by writing a one to bit US_CR.RSTSTA)
| Value | Description |
|---|---|
| 0 | The USART is idle or a LIN transfer is ongoing. |
| 1 | A LIN transfer has been completed since the last RSTSTA. |
Bit 14 – LINID LIN Identifier Sent or LIN Identifier Received (cleared by writing a one to bit US_CR.RSTSTA)
| Value | Description |
|---|---|
| 0 |
- If USART operates in LIN Host mode (USART_MODE = 0xA): No LIN identifier has been sent since the last RSTSTA. - If USART operates in LIN Client mode (USART_MODE = 0xB): No LIN identifier has been received since the last RSTSTA. |
| 1 |
- If USART operates in LIN Host mode (USART_MODE = 0xA): At least one LIN identifier has been sent since the last RSTSTA. - If USART operates in LIN Client mode (USART_MODE = 0xB): At least one LIN identifier has been received since the last RSTSTA |
Bit 13 – LINBK LIN Break Sent or LIN Break Received (cleared by writing a one to bit US_CR.RSTSTA)
| Value | Description |
|---|---|
| 0 | - If USART operates in LIN Host mode (USART_MODE = 0xA): No LIN break has been sent since the last RSTSTA. - If USART operates in LIN Client mode (USART_MODE = 0xB): No LIN break has been received since the last RSTSTA. |
| 1 |
- If USART operates in LIN Host mode (USART_MODE = 0xA): At least one LIN break has been sent since the last RSTSTA. - If USART operates in LIN Client mode (USART_MODE = 0xB): At least one LIN break has been received since the last RSTSTA. |
Bit 9 – TXEMPTY Transmitter Empty (cleared by writing US_THR)
| Value | Description |
|---|---|
| 0 | There are characters in either US_THR or the Transmit Shift Register, or the transmitter is disabled. |
| 1 | There are no characters in US_THR, nor in the Transmit Shift Register. |
Bit 8 – TIMEOUT Receiver Timeout (cleared by writing a one to bit US_CR.RSTSTA)
| Value | Description |
|---|---|
| 0 | There has not been a timeout since the last start timeout command (STTTO in US_CR) or the Timeout Register is 0. |
| 1 | There has been a timeout since the last start timeout command (STTTO in US_CR). |
Bit 7 – PARE Parity Error (cleared by writing a one to bit US_CR.RSTSTA)
| Value | Description |
|---|---|
| 0 | No parity error has been detected since the last RSTSTA. |
| 1 | At least one parity error has been detected since the last RSTSTA. |
Bit 6 – FRAME Framing Error (cleared by writing a one to bit US_CR.RSTSTA)
| Value | Description |
|---|---|
| 0 | No stop bit has been detected low since the last RSTSTA. |
| 1 | At least one stop bit has been detected low since the last RSTSTA. |
Bit 5 – OVRE Overrun Error (cleared by writing a one to bit US_CR.RSTSTA)
| Value | Description |
|---|---|
| 0 | No overrun error has occurred since the last RSTSTA. |
| 1 | At least one overrun error has occurred since the last RSTSTA. |
Bit 1 – TXRDY Transmitter Ready (cleared by writing US_THR)
| Value | Description |
|---|---|
| 0 | A character is in the US_THR waiting to be transferred to the Transmit Shift Register or the transmitter is disabled. As soon as the transmitter is enabled, TXRDY becomes 1. |
| 1 | There is no character in the US_THR. |
Bit 0 – RXRDY Receiver Ready (cleared by reading US_THR)
| Value | Description |
|---|---|
| 0 | No complete character has been received since the last read of US_RHR or the receiver is disabled. If characters were being received when the receiver was disabled, RXRDY changes to 1 when the receiver is enabled. |
| 1 | At least one complete character has been received and US_RHR has not yet been read. |