mc68hc908mr24 Freescale Semiconductor, Inc, mc68hc908mr24 Datasheet - Page 222

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

Timer Interface A (TIMA)
11.8.3 TIMA Counter Modulo Registers
11.8.4 TIMA Channel Status and Control Registers
Advance Information
222
NOTE:
The read/write TIMA modulo registers contain the modulo value for the
TIMA counter. When the TIMA counter reaches the modulo value, the
overflow flag (TOF) becomes set, and the TIMA counter resumes
counting from $0000 at the next clock. Writing to the high byte
(TAMODH) inhibits the TOF bit and overflow interrupts until the low byte
(TAMODL) is written. Reset sets the TIMA counter modulo registers.
Reset the TIMA counter before writing to the TIMA counter modulo
registers.
Each of the TIMA channel status and control registers:
Reset:
Reset:
Read:
Read:
Write:
Write:
Register Name and Address: TAMODH — $0011
Register Name and Address: TAMODL — $0012
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Flags input captures and output compares
Enables input capture and output compare interrupts
Selects input capture, output compare, or PWM operation
Selects high, low, or toggling output on output compare
Bit 15
Bit 7
Bit 7
Bit 7
1
1
Figure 11-6. TIMA Counter Modulo Registers
Timer Interface A (TIMA)
Bit 14
Bit 6
6
1
6
1
(TAMODH and TAMODL)
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