MC68HC908JL3E Datasheet, PDF (137/226 Pages) Motorola, Inc – Microcontrollers

Timer Interface Module (TIM)
I/O Registers
10.10.3 TIM Counter Modulo Registers (TMODH:TMODL)
The read/write TIM modulo registers contain the modulo value for the
TIM counter. When the TIM counter reaches the modulo value, the
overflow flag (TOF) becomes set, and the TIM counter resumes counting
from $0000 at the next timer clock. Writing to the high byte (TMODH)
inhibits the TOF bit and overflow interrupts until the low byte (TMODL) is
written. Reset sets the TIM counter modulo registers.
Address: $0023 TMODH
Bit 7
6
5
4
3
2
1
Bit 0
Read:
Bit15 Bit14 Bit13 Bit12 Bit11 Bit10
Bit9
Bit8
Write:
Reset: 1
1
1
1
1
1
1
1
Address: $0024 TMODL
Bit 7
6
5
4
3
2
1
Bit 0
Read:
Bit7
Bit6
Bit5
Bit4
Bit3
Bit2
Bit1
Bit0
Write:
Reset: 1
1
1
1
1
1
1
1
Figure 10-6. TIM Counter Modulo Registers (TMODH:TMODL)
NOTE: Reset the TIM counter before writing to the TIM counter modulo registers.
MC68H(R)C908JL3E/JK3E/JK1E — Rev. 2.0
MOTOROLA
Timer Interface Module (TIM)
Technical Data
137