mc68hc908as60 Freescale Semiconductor, Inc, mc68hc908as60 Datasheet - Page 401

• Manufacturer Part Number: mc68hc908as60
• Description: Mc68hc908as60 Microcontroller
• Manufacturer: Freescale Semiconductor, Inc

MC68HC908AS60 — Rev. 1.0
NOTE:
NOTE:
Before enabling a TIMA channel register for input capture operation,
make sure that the PTEx/TACHx pin or PTFx/TACHx pin is stable for at
least two bus clocks.
TOVx — Toggle-On-Overflow Bit
When TOVx is set, a TIMA counter overflow takes precedence over a
channel x output compare if both occur at the same time.
MSxB:MSxA
When channel x is an output compare channel, this read/write bit
controls the behavior of the channel x output when the TIMA counter
overflows. When channel x is an input capture channel, TOVx has no
effect. Reset clears the TOVx bit.
Freescale Semiconductor, Inc.
For More Information On This Product,
1 = Channel x pin toggles on TIMA counter overflow.
0 = Channel x pin does not toggle on TIMA counter overflow.
X0
X1
1X
1X
1X
00
00
00
01
01
01
Timer Interface Module A (TIMA-6)
Table 22-2. Mode, Edge, and Level Selection
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ELSxB:ELSxA
00
00
01
01
10
11
10
11
01
10
11
compare
compare
Buffered
or PWM
buffered
capture
Output
Output
preset
output
Mode
PWM
Input
or
Pin under port control;
Pin under port control;
Capture on rising edge only
Capture on falling edge only
Capture on rising or falling edge
Toggle output on compare
Clear output on compare
Set output on compare
Toggle output on compare
Clear output on compare
Set output on compare
Timer Interface Module A (TIMA-6)
initialize timer
output level high
initialize timer
output level low
Configuration
Technical Data
I/O Registers