Datasheet

Monitor ROM
MC68HC908KX8 • MC68HC908KX2 • MC68HC08KX8 Data Sheet, Rev. 2.1
Freescale Semiconductor 27
$0022
Timer Counter Register Low
(TCNTL)
See page 164.
Read:Bit 7654321Bit 0
Write:
Reset:00000000
$0023
Timer Counter Modulo
Register High (TMODH)
See page 165.
Read:
Bit 15 14 13 12 11 10 9 Bit 8
Write:
Reset:11111111
$0024
Timer Counter Modulo
Register Low (TMODL)
See page 165.
Read:
Bit 7654321Bit 0
Write:
Reset:11111111
$0025
Timer Channel 0 Status and
Control Register (TSC0)
See page 165.
Read: CH0F
CH0IE MS0B MS0A ELS0B ELS0A TOV0 CH0MAX
Write: 0
Reset:00000000
$0026
Timer Channel 0 Register
High (TCH0H)
See page 168.
Read:
Bit 15 14 13 12 11 10 9 Bit 8
Write:
Reset: Indeterminate after reset
$0027
Timer Channel 0 Register
Low (TCH0L)
See page 168.
Read:
Bit 7654321Bit 0
Write:
Reset: Indeterminate after reset
$0028
Timer Channel 1 Status and
Control Register (TSC1)
See page 165.
Read: CH1F
CH1IE
0
MS1A ELS1B ELS1A TOV1 CH1MAX
Write: 0
Reset:00000000
$0029
Timer Channel 1 Register
High (TCH1H)
See page 168.
Read:
Bit 15 14 13 12 11 10 9 Bit 8
Write:
Reset: Indeterminate after reset
$002A
Timer Channel 1 Register
Low (TCH1L)
See page 168.
Read:
Bit 7654321Bit 0
Write:
Reset: Indeterminate after reset
$002B
↓
$0035
Unimplemented
$0036
ICG Control Register
(ICGCR)
See page 87.
Read:
CMIE
CMF
CMON CS ICGON
ICGS
ECGON
ECGS
Write: 0
(1)
Reset:00001000
1. See 7.7.1 ICG Control Register for method of clearing the CMF bit.
$0037
ICG Multiplier Register
(ICGMR)
See page 88.
Read:
N6 N5 N4 N3 N2 N1 N0
Write:
Reset:00010101
Addr.Register Name Bit 7654321Bit 0
= Unimplemented R = Reserved U = Unaffected
Figure 2-2. Control, Status, and Data Registers (Sheet 3 of 5)