mc68hc908mr24 Freescale Semiconductor, Inc, mc68hc908mr24 Datasheet - Page 225
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mc68hc908mr24
Manufacturer Part Number
mc68hc908mr24
Description
M68hc08 Microcontrollers
Manufacturer
Freescale Semiconductor, Inc
Datasheet
1.MC68HC908MR24.pdf
(406 pages)
- Current page: 225 of 406
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MC68HC908MR24 — Rev. 4.1
Freescale Semiconductor
NOTE:
MSxA — Mode Select Bit A
Before changing a channel function by writing to the MSxB or MSxA bit,
set the TSTOP and TRST bits in the TIMA status and control register
(TASC).
ELSxB and ELSxA — Edge/Level Select Bits
When ELSxB:A
operation or unbuffered output compare/PWM operation.
See
When ELSxB:A = 00, this read/write bit selects the initial output level
of the TCHxA pin once PWM, input capture, or output compare
operation is enabled. See
When channel x is an input capture channel, these read/write bits
control the active edge-sensing logic on channel x.
When channel x is an output compare channel, ELSxB and ELSxA
control the channel x output behavior when an output compare
occurs.
When ELSxB and ELSxA are both clear, channel x is not connected
to port E, and pin PTEx/TCHxA is available as a general-purpose I/O
pin. However, channel x is at a state determined by these bits and
becomes transparent to the respective pin when PWM, input capture,
or output compare mode is enabled.
and ELSxA work. Reset clears the ELSxB and ELSxA bits.
1 = Unbuffered output compare/PWM operation
0 = Input capture operation
1 = Initial output level low
0 = Initial output level high
Table
Timer Interface A (TIMA)
11-2.
00, this read/write bit selects either input capture
Table
11-2. Reset clears the MSxA bit.
Table 11-2
Timer Interface A (TIMA)
shows how ELSxB
Advance Information
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