s908ab32ag0cfue Freescale Semiconductor, Inc, s908ab32ag0cfue Datasheet - Page 213

• Manufacturer Part Number: s908ab32ag0cfue
• Description: M68hc08 Microcontrollers
• Manufacturer: Freescale Semiconductor, Inc

12.10.3 TIMB Counter Modulo Registers
MC68HC908AB32
Freescale Semiconductor
NOTE:
—
Rev. 1.1
Address:
Address:
Address:
The read/write TIMB modulo registers contain the modulo value for the
TIMB counter. When the TIMB counter reaches the modulo value, the
overflow flag (TOF) becomes set, and the TIMB counter resumes
counting from $0000 at the next clock. Writing to the high byte
(TBMODH) inhibits the TOF bit and overflow interrupts until the low byte
(TBMODL) is written. Reset sets the TIMB counter modulo registers.
Reset the TIMB counter before writing to the TIMB counter modulo
registers.
Reset:
Reset:
Reset:
Read:
Read:
Read:
Write:
Write:
Write:
Figure 12-7. TIMB Counter Modulo Register High (TBMODH)
Figure 12-8. TIMB Counter Modulo Register Low (TBMODL)
Figure 12-6. TIMB Counter Register Low (TBCNTL)
$0042
$0043
$0044
Bit 15
Bit 7
Bit 7
Bit 7
Bit 7
Bit 7
0
1
1
Timer Interface Module B (TIMB)
= 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 B (TIMB)
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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