MC68HC08AZ60A Datasheet, PDF (423/480 Pages) Motorola, Inc – Microcontrollers

Timer Interface Module A (TIMA)
I/O Registers
23.9.3 TIMA Counter Modulo Registers
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 timer 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.
Register Name and Address TAMODH — $0024
Bit 7
6
5
4
3
2
1
Read:
BIT 15 BIT 14 BIT 13 BIT 12 BIT 11 BIT 10 BIT 9
Write:
Reset: 1
1
1
1
1
1
1
Bit 0
BIT 8
1
Register Name and Address TAMODL — $0025
Bit 7
6
5
4
3
2
1
Bit 0
Read:
BIT 7 BIT 6 BIT 5 BIT 4 BIT 3 BIT 2 BIT 1 BIT 0
Write:
Reset: 1
1
1
1
1
1
1
1
Figure 23-6. TIMA Counter Modulo Registers (TAMODH and
TAMODL)
NOTE: Reset the TIMA counter before writing to the TIMA counter modulo
registers.
MC68HC08AZ60A — Rev 0.0
MOTOROLA
Timer Interface Module A (TIMA)
Advance Information
423