mc68hc908mr8 Freescale Semiconductor, Inc, mc68hc908mr8 Datasheet - Page 217

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

11.10.3 TIMA Counter Modulo Registers
MC68HC908MR8 — Rev 4.1
Freescale Semiconductor
NOTE:
Register Name and Ad-
dress:
Register Name and Ad-
dress:
Figure 11-6. TIMA Counter Modulo Registers (TMODH and TMODL)
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
(TMODH) inhibits the TOF bit and overflow interrupts until the low byte
(TMODL) 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:
Bit 15
Bit 7
Bit 7
Bit 7
1
1
Timer Interface A (TIMA)
Bit 14
Bit 6
6
1
6
1
TAMODH — $0011
TAMODL — $0012
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 A (TIMA)
Bit 9
Bit 1
1
1
1
1
Technical Data
I/O Registers
Bit 0
Bit 8
Bit 0
Bit 0
1
1
217