mc68hc908mr32 Freescale Semiconductor, Inc, mc68hc908mr32 Datasheet - Page 232

• Manufacturer Part Number: mc68hc908mr32
• Description: M68hc08 Microcontrollers
• Manufacturer: Freescale Semiconductor, Inc

Timer Interface A (TIMA)
16.7.5 TIMA Channel Registers
These read/write registers contain the captured TIMA counter value of the input capture function or the
output compare value of the output compare function. The state of the TIMA channel registers after reset
is unknown.
In input capture mode (MSxB:MSxA = 0:0), reading the high byte of the TIMA channel x registers
(TACHxH) inhibits input captures until the low byte (TACHxL) is read.
In output compare mode (MSxB:MSxA ≠ 0:0), writing to the high byte of the TIMA channel x registers
(TACHxH) inhibits output compares until the low byte (TACHxL) is written.
232
Register Name and Address:
Register Name and Address:
Register Name and Address:
Register Name and Address:
Reset:
Reset:
Reset:
Reset:
Reset:
Read:
Read:
Read:
Read:
Read:
Write:
Write:
Write:
Write:
Write:
Register Name and Address: TACH1H — $0017
Bit 15
Bit 15
Bit 15
Bit 7
Bit 7
Bit 7
Bit 7
Bit 7
Bit 7
Bit 7
MC68HC908MR32 • MC68HC908MR16 Data Sheet, Rev. 6.1
Figure 16-10. TIMA Channel Registers
Bit 14
Bit 14
Bit 14
Bit 6
Bit 6
6
6
6
6
6
TACH0H — $0014
TACH0L — $0015
TACH1L — $0018
TACH2H — $001A
(TACH0H/L–TACH3H/L)
Bit 13
Bit 13
Bit 13
Bit 5
Bit 5
5
5
5
5
5
Indeterminate after reset
Indeterminate after reset
Indeterminate after reset
Indeterminate after reset
Indeterminate after reset
Bit 12
Bit 12
Bit 12
Bit 4
Bit 4
4
4
4
4
4
Bit 11
Bit 11
Bit 11
Bit 3
Bit 3
3
3
3
3
3
Bit 10
Bit 10
Bit 10
Bit 2
Bit 2
2
2
2
2
2
Bit 9
Bit 1
Bit 9
Bit 1
Bit 9
1
1
1
1
1
Freescale Semiconductor
Bit 0
Bit 8
Bit 0
Bit 0
Bit 0
Bit 8
Bit 0
Bit 0
Bit 0
Bit 8