mc68hc908jb16 Freescale Semiconductor, Inc, mc68hc908jb16 Datasheet - Page 155

• Manufacturer Part Number: mc68hc908jb16
• Description: M68hc08 Microcontrollers Microcontroller
• Manufacturer: Freescale Semiconductor, Inc

10.10.3 TIM Counter Modulo Registers
MC68HC908JB16
Freescale Semiconductor
NOTE:
—
Rev. 1.1
Address: T1CNTL, $000D and T2CNTL, $0043
Address: T1MODH, $000E and T2MODH, $0044
Address: T1MODL, $000F and T2MODL, $0045
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.
Reset the TIM counter before writing to the TIM counter modulo registers.
Reset:
Reset:
Reset:
Read:
Read:
Read:
Write:
Write:
Write:
Figure 10-7. TIM Counter Modulo Register High (TMODH)
Figure 10-8. TIM Counter Modulo Register Low (TMODL)
Bit 15
Figure 10-6. TIM Counter Registers Low (TCNTL)
Bit 7
Bit 7
Bit 7
Bit 7
Bit 7
0
1
1
Timer Interface Module (TIM)
= Unimplemented
14
6
6
0
6
1
6
6
1
13
5
5
0
5
1
5
5
1
12
4
4
0
4
1
4
4
1
11
3
3
0
3
1
3
3
1
Timer Interface Module (TIM)
10
2
2
0
2
1
2
2
1
1
1
0
1
9
1
1
1
1
Technical Data
Bit 0
Bit 0
Bit 0
Bit 8
Bit 0
Bit 0
0
1
1
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