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MC9S12P64VLHR Datasheet, PDF (277/566 Pages) Freescale Semiconductor, Inc – MC9S12P128 Reference Manual | |||
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Freescaleâs Scalable Controller Area Network (S12MSCANV3)
Figure 8-24. Receive/Transmit Message Buffer â Extended Identiï¬er Mapping (continued)
Register
Name
Bit 7
6
5
4
3
2
1
Bit0
0x00X4
DSR0
R
W
DB7
DB6
DB5
DB4
DB3
DB2
DB1
DB0
0x00X5
DSR1
R
W
DB7
DB6
DB5
DB4
DB3
DB2
DB1
DB0
0x00X6
DSR2
R
W
DB7
DB6
DB5
DB4
DB3
DB2
DB1
DB0
0x00X7
DSR3
R
W
DB7
DB6
DB5
DB4
DB3
DB2
DB1
DB0
0x00X8
DSR4
R
W
DB7
DB6
DB5
DB4
DB3
DB2
DB1
DB0
0x00X9
DSR5
R
W
DB7
DB6
DB5
DB4
DB3
DB2
DB1
DB0
0x00XA
DSR6
R
W
DB7
DB6
DB5
DB4
DB3
DB2
DB1
DB0
0x00XB
DSR7
R
W
DB7
DB6
DB5
DB4
DB3
DB2
DB1
DB0
0x00XC R
DLR
W
DLC3
DLC2
DLC1
DLC0
= Unused, always read âxâ
Read:
⢠For transmit buffers, anytime when TXEx ï¬ag is set (see Section 8.3.2.7, âMSCAN Transmitter
Flag Register (CANTFLG)â) and the corresponding transmit buffer is selected in CANTBSEL (see
Section 8.3.2.11, âMSCAN Transmit Buffer Selection Register (CANTBSEL)â).
⢠For receive buffers, only when RXF ï¬ag is set (see Section 8.3.2.5, âMSCAN Receiver Flag
Register (CANRFLG)â).
Write:
S12P-Family Reference Manual, Rev. 1.13
Freescale Semiconductor
277
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