mc68hc908kx8 Freescale Semiconductor, Inc, mc68hc908kx8 Datasheet - Page 168

• Manufacturer Part Number: mc68hc908kx8
• Description: M68hc08 Microcontrollers
• Manufacturer: Freescale Semiconductor, Inc

Timer Interface Module (TIM)
15.8.5 TIM Channel Registers
These read/write registers (TCH0H/L and TCH1H/L) contain the captured TIM counter value of the input
capture function or the output compare value of the output compare function. The state of the TIM channel
registers after reset is unknown.
In input capture mode (MSxB:MSxA = 0:0), reading the high byte of the TIM channel x registers (TCHxH)
inhibits input captures until the low byte (TCHxL) is read.
In output compare mode (MSxB:MSxA ≠ 0:0), writing to the high byte of the TIM channel x registers
(TCHxH) inhibits output compares until the low byte (TCHxL) is written.
168
Register name and address:
Register name and address:
Register name and address:
Register name and address:
PT
CHxMAX
A
x/TCH
Reset:
Reset:
Reset:
Reset:
Read:
Read:
Read:
Read:
Write:
Write:
Write:
Write:
Figure 15-10. TIM Channel Registers (TCH0H/L and TCH1H/L)
MC68HC908KX8 • MC68HC908KX2 • MC68HC08KX8 Data Sheet, Rev. 2.1
OVERFLOW
Bit 15
Bit 15
Bit 7
Bit 7
Bit 7
Bit 7
Bit 7
Bit 7
COMPARE
PERIOD
OUTPUT
TCH0H — $0026
TCH0L — $0027
TCH1H — $0029
TCH1L — $002A
14
14
6
6
6
6
6
6
Figure 15-9. CHxMAX Latency
OVERFLOW
13
13
5
5
5
5
5
5
COMPARE
OUTPUT
Indeterminate after reset
Indeterminate after reset
Indeterminate after reset
Indeterminate after reset
OVERFLOW
12
12
4
4
4
4
4
4
COMPARE
OUTPUT
11
11
3
3
3
3
3
3
OVERFLOW
10
10
2
2
2
2
2
2
COMPARE
OUTPUT
OVERFLOW
1
9
1
1
1
9
1
1
Freescale Semiconductor
Bit 0
Bit 8
Bit 0
Bit 0
Bit 0
Bit 8
Bit 0
Bit 0