mc68hc908mr8 Freescale Semiconductor, Inc, mc68hc908mr8 Datasheet - Page 241

• Manufacturer Part Number: mc68hc908mr8
• Description: M68hc08 Microcontrollers Microcontroller
• Manufacturer: Freescale Semiconductor, Inc

12.10.3 TIMB Counter Modulo Registers
MC68HC908MR8 — Rev 4.1
Freescale Semiconductor
NOTE:
Register Name and Ad-
dress:
Register Name and Ad-
dress:
Figure 12-6. TIMB Counter Modulo Registers (TMODH and TMODL)
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 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 TIMB counter modulo registers.
Reset the TIMB counter before writing to the TIMB counter modulo
registers.
Reset:
Reset:
Read:
Read:
Write:
Write:
Bit 15
Bit 7
Bit 7
Bit 7
1
1
Timer Interface B (TIMB)
Bit 14
Bit 6
6
1
6
1
TBMODH — $0054
TBMODL — $0055
Bit 13
Bit 5
5
1
5
1
Bit 12
Bit 4
4
1
4
1
Bit 11
Bit 3
3
1
3
1
Bit 10
Bit 2
2
1
2
1
Timer Interface B (TIMB)
Bit 9
Bit 1
1
1
1
1
Technical Data
I/O Registers
Bit 0
Bit 8
Bit 0
Bit 0
1
1
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