MC68HC708AS48 FREESCALE [Freescale Semiconductor, Inc], MC68HC708AS48 Datasheet - Page 237
MC68HC708AS48
Manufacturer Part Number
MC68HC708AS48
Description
Advance Information
Manufacturer
FREESCALE [Freescale Semiconductor, Inc]
Datasheet
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MC68HC708AS48
MOTOROLA
NOTE:
NOTE:
—
Rev. 4.0
Before enabling a TIM channel register for input capture operation, make
sure that the PTEx/TCHx pin or PTFx/TCHx pin is stable for at least two
bus clocks.
TOVx — Toggle-On-Overflow Bit
When TOVx is set, a TIM 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 TIM counter
overflows. When channel x is an input capture channel, TOVx has no
effect. Reset clears the TOVx bit.
1 = Channel x pin toggles on TIM counter overflow.
0 = Channel x pin does not toggle on TIM counter overflow.
X0
X1
1X
1X
1X
00
00
00
01
01
01
Table 16-2. Mode, Edge, and Level Selection
Timer Interface (TIM)
ELSxB:ELSxA
00
00
01
10
11
01
10
11
01
10
11
orBuffered
Compare
Compare
Capture
or PWM
Buffered
Output
Output
Preset
Mode
Output
PWM
Input
Pin under Port Control; Initial
Pin under Port Control; Initial
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
Output Level High
Output Level Low
Configuration
Timer Interface (TIM)
Advance Information
I/O Registers
237
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