ST92F124XX Datasheet, PDF (423/523 Pages) STMicroelectronics – In-Application Programming

ST92F124xx/ST92F150Cxx/ST92F150JDV1/ST92F250CV2
On-chip peripherals
Figure 166. Bit timing
SYNC_SEG
1 x t_CAN
NOMINAL BIT TIME
BIT SEGMENT 1 (BS1)
t_BS1
BIT SEGMENT 2 (BS2)
t_BS2
BaudRate = -------------------------¹---------------------------
NominalBitTime
SAMPLE POINT
NominalBitTime = 1 × t_CAN + t_BS1 + t_BS2
with:
t_BS1 = t_CAN x (TS1[3:0] + 1) ,
t_BS2 = t_CAN x (TS2[2:0] + 1),
t_CAN = t_CPU x BRP,
t_CPU = time period of the CPU clock,
BRP = BRP[5:0] + 1 = Baud Rate Prescaler
BRP[5:0] is defined in the CBTR0 Register,
TS1[3:0] and TS2[2:0] are defined in the CBTR1 Register.
TRANSMIT POINT
Doc ID 8848 Rev 7
423/523