Datasheet

Timer Interface Module (TIM)
MC68HC908LJ12 — Rev. 2.1 Technical Data
Freescale Semiconductor Timer Interface Module (TIM) 203
11.10.3 TIM Counter Modulo Registers
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.
NOTE: Reset the TIM counter before writing to the TIM counter modulo registers.
Address: T1MODH, $0023 and T2MODH, $002E
Bit 7654321Bit 0
Read:
Bit 15 14 13 12 11 10 9 Bit 8
Write:
Reset:11111111
Figure 11-7. TIM Counter Modulo Register High (TMODH)
Address: T1MODL, $0024 and T2MODL, $002F
Bit 7654321Bit 0
Read:
Bit 7654321Bit 0
Write:
Reset:11111111
Figure 11-8. TIM Counter Modulo Register Low (TMODL)