Datasheet

Block Diagram
MC68HC812A4 Data Sheet, Rev. 7
Freescale Semiconductor 121
$0099
Timer Channel 4 Register
Low (TC4L)
See page 133.
Read:
Bit 7654321Bit 0
Write:
Reset:00000000
$009A
Timer Channel 5 Register
High (TC5H)
See page 133.
Read:
Bit 15 14 13 12 11 10 9 Bit 8
Write:
Reset:00000000
$009B
Timer Channel 5 Register
Low (TC5L)
See page 133.
Read:
Bit 7654321Bit 0
Write:
Reset:00000000
$009C
Timer Channel 6 Register
High (TC6H)
See page 133.
Read:
Bit 15 14 13 12 11 10 9 Bit 8
Write:
Reset:00000000
$009D
Timer Channel 6 Register
Low (TC6L)
See page 133.
Read:
Bit 7654321Bit 0
Write:
Reset:00000000
$009E
Timer Channel 7 Register
High (TC7H)
See page 133.
Read:
Bit 15 14 13 12 11 10 9 Bit 8
Write:
Reset:00000000
$009F
Timer Channel 7 Register
Low (TC7L)
See page 133.
Read:
Bit 76543210
Write:
Reset:00000000
$00A0
Pulse Accumulator Control
Register (PACTL)
See page 134.
Read: 0
PAEN PAMOD PEDGE CLK1 CLK0 PAOVI PAI
Write:
Reset:00000000
$00A1
Pulse Accumulator Flag
Register (PAFLG)
See page 135.
Read: 0 0 0 0 0 0
PAOV F PAI F
Write:
Reset:00000000
$00A2
Pulse Accumulator
Counter Register High
(PACNTH)
See page 136.
Read:
Bit 15 14 13 12 11 10 9 Bit 8
Write:
Reset:00000000
$00A3
Pulse Accumulator
Counter Register Low
(PACNTL)
See page 136.
Read:
Bit 7654321Bit 0
Write:
Reset:00000000
$00AD
Timer Test Register
(TIMTST)
See page 137.
Read: 0 0 0 0 0 0 TCBYP PCBYP
Write:
Reset:00000000
Addr.Register Name Bit 7654321Bit 0
= Unimplemented R = Reserved
Figure 12-2. I/O Register Summary (Sheet 3 of 4)