mc68hc908mr24 Freescale Semiconductor, Inc, mc68hc908mr24 Datasheet - Page 248

• Manufacturer Part Number: mc68hc908mr24
• Description: M68hc08 Microcontrollers
• Manufacturer: Freescale Semiconductor, Inc

Timer Interface B (TIMB)
12.8.3 TIMB Counter Modulo Registers
Advance Information
248
NOTE:
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:
Read:
Read:
Write:
Write:
Register Name and Address: TBMODH — $0054
Register Name and Address: TBMODL — $0055
Bit 15
Bit 7
Bit 7
Bit 7
1
1
Figure 12-6. TIMB Counter Modulo Registers
Timer Interface B (TIMB)
Bit 14
Bit 6
6
1
6
1
(TBMODH and TBMODL)
Bit 13
Bit 5
5
1
5
1
Bit 12
Bit 4
4
1
4
1
Bit 11
Bit 3
3
1
3
1
MC68HC908MR24
Bit 10
Bit 2
Freescale Semiconductor
2
1
2
1
Bit 9
Bit 1
1
1
1
1
—
Rev. 4.1
Bit 0
Bit 8
Bit 0
Bit 0
1
1