23.3.4 SENTx Status Register
- This bit is read-only in Receive mode and writable (settable and clearable) in Transmit mode.
Legend: R = Readable bit, W = Writable bit, C = Clearable bit, HC = Hardware Clearable bit
| Name: | SENTxSTAT |
| Offset: | 0x19CC, 0x19EC |
| Bit | 31 | 30 | 29 | 28 | 27 | 26 | 25 | 24 | |
| Access | |||||||||
| Reset |
| Bit | 23 | 22 | 21 | 20 | 19 | 18 | 17 | 16 | |
| Access | |||||||||
| Reset |
| Bit | 15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 | |
| Access | |||||||||
| Reset |
| Bit | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 | |
| PAUSE | NIB[2:0] | CRCERR | FRMERR | RXIDLE | SYNCTXEN | ||||
| Access | R | R | R | R | R/C | R/C | R | R/W/HC | |
| Reset | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | |
Bit 7 – PAUSE Pause Period Status bit
| Value | Description |
|---|---|
1 |
The module is transmitting/receiving a Pause period. |
0 |
The module is not transmitting/receiving a Pause period. |
Bits 6:4 – NIB[2:0] Nibble Status bits
In Transmit Mode (RCVEN = 0):
111 = Module is transmitting CRC nibble.
110 = Module is transmitting Data Nibble 6.
101 = Module is transmitting Data Nibble 5.
100 = Module is transmitting Data Nibble 4.
011 = Module is transmitting Data Nibble 3.
010 = Module is transmitting Data Nibble 2.
001 = Module is transmitting Data Nibble 1.
000 = Module is transmitting status nibble or Pause period, or
it is not transmitting.
In Receive Mode (RCVEN = 1):
111 = Module is receiving CRC nibble or was receiving this
nibble when an error occurred.
110 = Module is receiving Data Nibble 6 or was receiving this
nibble when an error occurred.
101 = Module is receiving Data Nibble 5 or was receiving this
nibble when an error occurred.
100 = Module is receiving Data Nibble 4 or was receiving this
nibble when an error occurred.
011 = Module is receiving Data Nibble 3 or was receiving this
nibble when an error occurred.
010 = Module is receiving Data Nibble 2 or was receiving this
nibble when an error occurred.
001 = Module is receiving Data Nibble 1 or was receiving this
nibble when an error occurred.
000 = Module is receiving Status nibble or waiting for Sync.
Bit 3 – CRCERR CRC Status bit (Receive mode only)
| Value | Description |
|---|---|
1 |
A CRC error occurred for the data nibbles in the SENTxDATA register. |
0 |
No CRC error has occurred. |
Bit 2 – FRMERR Framing Error Status bit (Receive mode only)
| Value | Description |
|---|---|
1 |
A data nibble was received with less than 12 tick periods or greater than 27 tick periods. |
0 |
No framing error has occurred. |
Bit 1 – RXIDLE Receiver Idle Status bit (Receive mode only)
| Value | Description |
|---|---|
1 |
The SENTx data bus has been Idle (high) for a period of SYNCMAX or greater. |
0 |
The SENTx data bus is not Idle. |
Bit 0 – SYNCTXEN Synchronization Period Status/Transmit Enable bit(1)
In Receive Mode (RCVEN = 1):
1 = A valid synchronization period was detected; the module is
receiving nibble data.
0 = No synchronization period has been detected; the module is
not receiving nibble data.
In Synchronous Transmit Mode (RCVEN = 0, TXM =
1):
1 = The module is transmitting a SENT data frame.
0 = The module is not transmitting a data frame; software may
set SYNCTXEN to start another data frame transmissio.n
In Asynchronous Transmit Mode (RCVEN = 0, TXM =
0):
SYNCTXEN always reads as ‘1’, indicating the module is
transmitting frames continuously.