MC68908GZ8MFJE Datasheet, PDF (141/314 Pages) Freescale Semiconductor, Inc – Microcontrollers

Programmer’s Model of Control Registers
12.13 Programmer’s Model of Control Registers
The programmer’s model has been laid out for maximum simplicity and efficiency. Figure 12-15 gives an
overview on the control register block of the MSCAN08.
Addr.
Register
Bit 7
6
$0500
Read:
0
0
CMCR0
Write:
$0501
CMCR1 ^Read:
0
0
5
4
3
2
1
Bit 0
0
SYNCH
SLPAK
TLNKEN
SLPRQ SFTRES
0
0
0
LOOPB WUPM CLKSRC
$0502
$0503
$0504
$0505
$0506
$0507
$0508
$0509
$050E
$050F
$0510
$0511
Read:
CBTR0
Write:
SJW1
SJW0
BRP5
BRP4
BRP3
BRP2
BRP1
BRP0
Read:
CBTR1
SAMP
Write:
TSEG22 TSEG21 TSEG20 TSEG13 TSEG12 TSEG11 TSEG10
Read:
CRFLG
WUPIF RWRNIF TWRNIF RERRIF TERRIF BOFFIF OVRIF
RXF
Write:
Read:
CRIER
WUPIE
Write:
RWRNIE TWRNIE RERRIE
TERRIE
BOFFIE
OVRIE
RXFIE
Read:
0
ABTAK2 ABTAK1 ABTAK0
0
CTFLG
Write:
TXE2
TXE1
TXE0
Read:
0
0
CTCR
ABTRQ2 ABTRQ1 ABTRQ0
Write:
TXEIE2 TXEIE1 TXEIE0
Read:
0
CIDAC
Write:
0
0
IDAM1
IDAM0
0
IDHIT1 IDHIT0
Read:
Reserved
R
R
R
R
R
R
R
R
Write:
Read:
CRXERR
RXERR7
Write:
RXERR6
RXERR5
RXERR4
RXERR3
RXERR2
RXERR1
RXERR0
Read:
CTXERR
TXERR7
Write:
TXERR6
TXERR5
TXERR4
TXERR3
TXERR2
TXERR1
TXERR0
Read:
CIDAR0
AC7
AC6
AC5
AC4
AC3
AC2
AC1
AC0
Write:
Read:
CIDAR1
AC7
AC6
AC5
AC4
AC3
AC2
AC1
AC0
Write:
= Unimplemented
R
= Reserved
Figure 12-15. MSCAN08 Control Register Structure
MC68HC908GZ16 • MC68HC908GZ8 Data Sheet, Rev. 4
Freescale Semiconductor
141