MC68HC908JK1 Datasheet, PDF (130/210 Pages) Motorola, Inc – MC68HC908JK1

Timer Interface Module (TIM)
Address: $0021 TCNTH
Bit 7
6
5
4
3
2
1
Bit 0
Read: Bit15 Bit14 Bit13 Bit12 Bit11 Bit10
Bit9
Bit8
Write:
Reset: 0
0
0
0
0
0
0
0
Address: $0022 TCNTL
Bit 7
6
5
4
3
2
1
Bit 0
Read: Bit7
Bit6
Bit5
Bit4
Bit3
Bit2
Bit1
Bit0
Write:
Reset: 0
0
0
0
0
0
0
0
= Unimplemented
Figure 10-5. TIM Counter Registers (TCNTH:TCNTL)
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 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.
Technical Data
130
Timer Interface Module (TIM)
MC68H(R)C908JL3 — Rev. 1.0
MOTOROLA