MC68HC908LB8_05 Datasheet, PDF (189/234 Pages) Freescale Semiconductor, Inc – M68HC08 Microcontrollers

Functional Description
TMODH:TMODL, control the modulo value of the TIM counter. Software can read the TIM counter value
at any time without affecting the counting sequence.
The two TIM channels are programmable independently as input capture or output compare channels. If
a channel is configured as input capture, then an internal pullup device may be enabled for that channel. .
Figure 18-3 summarizes the timer registers.
Addr. Register Name
$0020
Timer Status and Control ^Read:
Register (T1SC) Write:
See page 195. _Reset:
$0021
Timer Counter ^Read:
Register High (T1CNTH) Write:
See page 196. _Reset:
$0022
Timer Counter ^Read:
Register Low (T1CNTL) Write:
See page 196. _Reset:
$0023
Timer Counter Modulo ^Read:
Register High (T1MODH) Write:
See page 197. _Reset:
$0024
Timer Counter Modulo ^Read:
Register Low (T1MODL) Write:
See page 197. _Reset:
$0025
Timer Channel 0 Status and ^Read:
Control Register (T1SC0) Write:
See page 198. _Reset:
$0026
Timer Channel 0 ^Read:
Register High (T1CH0H) Write:
See page 201. _Reset:
$0027
Timer Channel 0 ^Read:
Register Low (T1CH0L) Write:
See page 201. _Reset:
$0028
Timer Channel 1 Status and ^Read:
Control Register (T1SC1) Write:
See page 198. _Reset:
Bit 7
TOF
0
0
Bit 15
0
Bit 7
0
Bit 15
1
Bit 7
1
CH0F
0
0
Bit 15
Bit 7
CH1F
0
0
6
5
4
3
2
TOIE TSTOP
0
0
PS2
TRST
0
1
0
0
0
14
13
12
11
10
0
0
0
0
0
6
5
4
3
2
0
0
0
0
0
14
13
12
11
10
1
1
1
1
1
6
5
4
3
2
1
1
1
1
1
CH0IE
MS0B
MS0A
ELS0B ELS0A
0
0
0
0
0
14
13
12
11
10
Indeterminate after reset
6
5
4
3
2
CH1IE
Indeterminate after reset
0
MS1A ELS1B ELS1A
0
0
0
0
0
= Unimplemented
1
Bit 0
PS1
PS0
0
0
9
Bit 8
0
0
1
Bit 0
0
9
1
1
1
TOV0
0
9
0
Bit 8
1
Bit 0
1
CH0MAX
0
Bit 8
1
Bit 0
TOV1
0
CH1MAX
0
Figure 18-3. TIM I/O Register Summary (Sheet 1 of 2)
MC68HC908LB8 Data Sheet, Rev. 1
Freescale Semiconductor
189