XC908AS60ACFU Motorola Semiconductor Products, XC908AS60ACFU Datasheet - Page 461

• Manufacturer Part Number: XC908AS60ACFU
• Description: MC68HC908AZ60A, MC68HC908AS60A Hcmos Microcontroller Unit Technical Data
• Manufacturer: Motorola Semiconductor Products

25.9.3 TIMA Counter Modulo Registers
MC68HC908AZ60A — Rev 2.0
MOTOROLA
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 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.
Reset the TIMA counter before writing to the TIMA counter modulo
registers.
Reset:
Reset:
Read:
Read:
Write:
Write:
Register Name and Address TAMODH — $0024
Register Name and Address TAMODL — $0025
Figure 25-6. TIMA Counter Modulo Registers (TAMODH and
BIT 15
BIT 7
Bit 7
Bit 7
1
1
Timer Interface Module A (TIMA)
BIT 14
BIT 6
6
1
6
1
BIT 13
BIT 5
5
1
5
1
TAMODL)
BIT 12
BIT 4
4
1
4
1
BIT 11
BIT 3
3
1
3
1
Timer Interface Module A (TIMA)
BIT 10
BIT 2
2
1
2
1
BIT 9
BIT 1
1
1
1
1
Technical Data
I/O Registers
BIT 8
BIT 0
Bit 0
Bit 0
1
1
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