14
T89C51CC01
Rev. D – 17-Dec-01
Table 9. CAN SFRs
MnemonicAddName 76543210
CANGCON ABh CAN General Control ABRQ OVRQ TTC SYNCTTC
AUT-
BAUD
TEST ENA GRES
CANGSTA AAh CAN General Status - OVFG - TBSY RBSY ENFG BOFF ERRP
CANGIT 9Bh
CAN General
Interrupt
CANIT - OVRTIM OVRBUF SERG CERG FERG AERG
CANBT1 B4h CAN Bit Timing 1 - BRP5 BRP4 BRP3 BRP2 BRP1 BRP0 -
CANBT2 B5h CAN Bit Timing 2 - SJW1 SJW0 - PRS2 PRS1 PRS0 -
CANBT3 B6h CAN Bit Timing 3 - PHS22 PHS21 PHS20 PHS12 PHS11 PHS10 SMP
CANEN1 CEh
CAN Enable Channel
byte 1
- ENCH14 ENCH13 ENCH12 ENCH11 ENCH10 ENCH9 ENCH8
CANEN2 CFh
CAN Enable Channel
byte 2
ENCH7 ENCH6 ENCH5 ENCH4 ENCH3 ENCH2 ENCH1 ENCH0
CANGIE C1h
CAN General
Interrupt Enable
- - ENRX ENTX ENERCH ENBUF ENERG -
CANIE1 C2h
CAN Interrupt Enable
Channel byte 1
- IECH14 IECH13 IECH12 IECH11 IECH10 IECH9 IECH8
CANIE2 C3h
CAN Interrupt Enable
Channel byte 2
IECH7 IECH6 IECH5 IECH4 IECH3 IECH2 IECH1 IECH0
CANSIT1 BAh
CAN Status Interrupt
Channel byte1
- SIT14 SIT13 SIT12 SIT11 SIT10 SIT9 SIT8
CANSIT2 BBh
CAN Status Interrupt
Channel byte2
SIT7 SIT6 SIT5 SIT4 SIT3 SIT2 SIT1 SIT0
CANTCON A1h CAN Timer Control
TPRESC
7
TPRESC
6
TPRESC
5
TPRESC
4
TPRESC
3
TPRESC
2
TPRESC
1
TPRESC
0
CANTIMH ADh CAN Timer high
CANTIM
15
CANTIM
14
CANTIM
13
CANTIM
12
CANTIM
11
CANTIM
10
CANTIM 9 CANTIM 8
CANTIML ACh CAN Timer low CANTIM 7 CANTIM 6 CANTIM 5 CANTIM 4 CANTIM 3 CANTIM 2 CANTIM 1 CANTIM 0
CANSTMH AFh
CAN Timer Stamp
high
TIMSTMP
15
TIMSTMP
14
TIMSTMP
13
TIMSTMP
12
TIMSTMP
11
TIMSTMP
10
TIMSTMP
9
TIMSTMP
8
CANSTML AEh
CAN Timer Stamp
low
TIMSTMP
7
TIMSTMP
6
TIMSTMP
5
TIMSTMP
4
TIMSTMP
3
TIMSTMP
2
TIMSTMP
1
TIMSTMP
0
CANTTCH A5h CAN Timer TTC high
TIMTTC
15
TIMTTC
14
TIMTTC
13
TIMTTC
12
TIMTTC
11
TIMTTC
10
TIMTTC
9
TIMTTC
8
CANTTCL A4h CAN Timer TTC low
TIMTTC
7
TIMTTC
6
TIMTTC
5
TIMTTC
4
TIMTTC
3
TIMTTC
2
TIMTTC
1
TIMTTC
0
CANTEC 9Ch
CAN Transmit Error
Counter
TEC7 TEC6 TEC5 TEC4 TEC3 TEC2 TEC1 TEC0
CANREC 9Dh
CAN Receive Error
Counter
REC7 REC6 REC5 REC4 REC3 REC2 REC1 REC0
CANPAGE B1h CAN Page CHNB3 CHNB2 CHNB1 CHNB0 AINC INDX2 INDX1 INDX0
CANSTCH B2h CAN Status Channel DLCW TXOK RXOK BERR SERR CERR FERR AERR
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