Datasheet
Registers
M68HC12B Family Data Sheet, Rev. 9.1
Freescale Semiconductor 55
$00FD
Port DLC Control Register
(DLCSCR)
(2)
See page 241.
Read:00000
BDLCEN PUPDLC RDPDLC
Write:
Reset:00000000
$00FE
Port DLC Data Register
(PORTDLC)
(2)
See page 242.
Read: 0
Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
Write:
Reset:0UUUUUUU
$00FF
Port DLC Data Direction Register
(DDRDLC)
(2)
See page 242.
Read: 0
DDDLC6 DDDLC5 DDDLC4 DDDLC3 DDDLC2 DDDLC1 DDDLC0
Write:
Reset:00000000
$0100
msCAN12 Module Control
Register 0 (CMCR0)
(3)
See page 262.
Read: 0 0
CSWAI
SYNCH
TLNKEN
SLPAK
SLPRQ SFTRES
Write:
Reset:00100001
$0101
msCAN12 Module Control
Register 1 (CMCR1)
(3)
See page 263.
Read:00000
LOOPB WUPM CLKSRC
Write:
Reset:00000000
$0102
msCAN12 Bus Timing
Register 0 (CBTR0)
(3)
See page 264.
Read:
SJW1 SJW0 BRP5 BRP4 BPR3 BPR2 BPR1 BPR0
Write:
Reset:00000000
$0103
msCAN12 Bus Timing
Register 1 (CBTR1)
(3)
See page 265.
Read:
SAMP TSEG22 TSEG21 TSEG20 TSEG13 TSEG12 TSEG11 TSEG10
Write:
Reset:00000000
$0104
msCAN12 Receiver Flag
Register (CRFLG)
(3)
See page 266.
Read:
WUPIF RWRNIF TWRNIF RERRIF TERRIF BOFFIF OVRIF RXF
Write:
Reset:00000000
$0105
msCAN12 Receiver Interrupt
Enable Register (CRIER)
(3)
See page 268.
Read:
WUPIE RWRNIE TWRNIE RERRIE TERRIE BOFFIE OVRIE RXFIE
Write:
Reset:00000000
$0106
msCAN12 Transmitter Flag
Register (CTFLG)
(3)
See page 269.
Read: 0 ABTAK2 ABTAK1 ABTAK0 0
TXE2 TXE1 TXE0
Write:
Reset:00000111
$0107
msCAN12 Transmitter Control
Register (CTCR)
(3)
See page 270.
Read: 0
ABTRQ2 ABTRQ1 ABTRQ0
0
TXEIE2 TXEIE1 TXEIE0
Write:
Reset:00000000
$0108
msCAN12 Identifier Acceptance
Control Register (CIDAC)
(3)
See page 270.
Read: 0 0
IDAM1 IDAM0
0 IDHIT2 IDHIT1 IDHIT0
Write:
Reset:00000000
$0109 Reserved R R R R R R R R
↓
Addr. Register Name Bit 7654321Bit 0
= Unimplemented R = Reserved U = Unaffected
Notes:
1. Available only on MC68HC912B32 and MC68HC912BC32 devices.
2. Available only on MC68HC912B32 and MC68HC12BE32 devices.
3. Available only on MC68HC(9)12BC32 devices.
Figure 2-1. Register Map (Sheet 16 of 19)