Freescale Semiconductor, Inc.
Enhanced Capture Timer
BIT 7
DDT7
0
6
DDT6
0
5
DDT5
0
4
DDT4
0
3
DDT3
0
2
DDT2
0
1
DDT1
0
BIT 0
DDT0
0
RESET:
DDRT — Data Direction Register for Timer Port
$00AF
Read or write any time.
0 = Configures the corresponding I/O pin for input only
1 = Configures the corresponding I/O pin for output.
The timer forces the I/O state to be an output for each timer port line
associated with an enabled output compare. In these cases the data
direction bits will not be changed, but have no effect on the direction
of these pins. The DDRT will revert to controlling the I/O direction of
a pin when the associated timer output compare is disabled. Input
captures do not override the DDRT settings.
BIT 7
6
PBEN
0
5
0
0
4
0
0
3
0
0
2
0
0
1
PBOVI
0
BIT 0
0
0
0
0
RESET:
PBCTL — 16-Bit Pulse Accumulator B Control Register
$00B0
Read: any time
Write: any time
16-Bit Pulse Accumulator B (PACB) is formed by cascading the 8-bit
pulse accumulators PAC1 and PAC0.
When PBEN is set, the PACB is enabled. The PACB shares the input
pin with IC0.
PBEN — Pulse Accumulator B System Enable
0 = 16-bit Pulse Accumulator system disabled. 8-bit PAC1 and
PAC0 can be enabled when their related enable bits in
ICPACR ($A8) are set.
Advance Information
230
68HC(9)12D60 — Rev 4.0
Enhanced Capture Timer
MOTOROLA
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MOTOROLA [ MOTOROLA ]
