SPRUJ42E March 2022 – October 2024 AM2631 , AM2631-Q1 , AM2632 , AM2632-Q1 , AM2634 , AM2634-Q1
PRODUCTION DATA
The MBRSR register is used to configure the expected maximum baud rate of the LIN network.
Return to Summary Table
| Instance Name | Physical Address |
|---|---|
| LIN0 | 5240 007Ch |
| LIN1 | 5240 107Ch |
| LIN2 | 5240 207Ch |
| LIN3 | 5240 307Ch |
| LIN4 | 5240 407Ch |
| 31 | 30 | 29 | 28 | 27 | 26 | 25 | 24 |
| RESERVED_1 | |||||||
| R | |||||||
| 0h | |||||||
| 23 | 22 | 21 | 20 | 19 | 18 | 17 | 16 |
| RESERVED_1 | |||||||
| R | |||||||
| 0h | |||||||
| 15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 |
| RESERVED_1 | MBR | ||||||
| R | R/W | ||||||
| 0h | DACh | ||||||
| 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
| MBR | |||||||
| R/W | |||||||
| DACh | |||||||
| Bit | Field | Type | Reset | Description |
|---|---|---|---|---|
| 31:13 | RESERVED_1 | R | 0h | Reserved |
| 12:0 | MBR | R/W | DACh | Maximum Baud Rate Prescaler. This field is effective in LIN mode only. This 13-bit prescaler is used during the synchronization phase [see the "Header Reception and Adaptive Baudrate" section] of a target module if the ADAPT bit is set. In this way, a SCI/LIN target using an automatic or select bit rate modes detects any LIN bus legal rate automatically. The MBR value should be programmed to allow a maximum baud rate that is not more than 10% above the expected operating baud rate in the LIN network. Otherwise a s 0x00 data byte could mistakenly be detected as sync break. The default value is for a 70MHz LINCLK [0xDAC]. This MBR prescaler is used by the wake-up and idle time counters for a constant expiration time relative to a 20kHz rate. |