ST ST32M103 Series - Page 316

Controller area network (bxCAN) UM0306
316/519
Address Offsets: 188h, 198h, 1A8h
Reset Value: xxh
Mailbox data high register (CAN_TDHxR) (x=0..2)
All bits of this register are write protected when the mailbox is not in empty state.
Address Offsets: 18Ch, 19Ch, 1ACh
Reset Value: xxh
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16
DATA3[7:0] DATA2[7:0]
rw rw rw rw rw rw rw rw rw rw rw rw rw rw rw rw
1514131211109876543210
DATA1[7:0] DATA0[7:0]
rw rw rw rw rw rw rw rw rw rw rw rw rw rw rw rw
Bits 31:24
DATA3[7:0]: Data Byte 3
Data byte 3 of the message.
Bits 23:16
DATA2[7:0]: Data Byte 2
Data byte 2 of the message.
Bits 15:8
DATA1[7:0]: Data Byte 1
Data byte 1 of the message.
Bits 7:0
DATA0[7:0]: Data Byte 0
Data byte 0 of the message.
A message can contain from 0 to 8 data bytes and starts with byte 0.
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16
DATA7[7:0] DATA6[7:0]
rw rw rw rw rw rw rw rw rw rw rw rw rw rw rw rw
1514131211109876543210
DATA5[7:0] DATA4[7:0]
rw rw rw rw rw rw rw rw rw rw rw rw rw rw rw rw
Bits 31:24
DATA7[7:0]: Data Byte 7
Data byte 7 of the message.
Note: if TGT of this message and TTCM are active, DATA7 and DATA6 will be
replaced by the TIME stamp value.
Bits 23:16
DATA6[7:0]: Data Byte 6
Data byte 6 of the message.
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