MC68HC11KA4TS Datasheet, PDF (65/68 Pages) Motorola, Inc – 8-Bit Microcontroller

PWPOL —Pulse-Width Modulation Timer Polarity
$0061
RESET:
Bit 7
PCLK4
0
6
PCLK3
0
5
PCLK2
0
4
PCLK1
0
3
PPOL4
0
2
PPOL3
0
1
PPOL2
0
Bit 0
PPOL1
0
PCLK4 — Pulse-Width Channel 4 Clock Select
0 = Clock B is source
1 = Clock S is source
PCLK3 — Pulse-Width Channel 3 Clock Select
0 = Clock B is source
1 = Clock S is source
PCLK2 — Pulse-Width Channel 2 Clock Select
0 = Clock A is source
1 = Clock S is source
PCLK1 — Pulse-Width Channel 1 Clock Select
0 = Clock A is source
1 = Clock S is source
PPOL[4:1] — Pulse-Width Channel x Polarity
0 = PWM channel x output is low at the beginning of the clock cycle and goes high when duty count
is reached
1 = PWM channel x output is high at the beginning of the clock cycle and goes low when duty count
is reached
PWSCAL — Pulse-Width Modulation Timer Prescaler
$0062
Bit 7
6
5
4
3
2
1
Bit 0
7
6
5
4
3
2
1
0
RESET:
0
0
0
0
0
0
0
0
Scaled clock S is generated by dividing clock A by the value in PWSCAL, then dividing the result by 2.
If PWSCAL = $00, divide clock A by 256, then divide the result by 2.
PWEN — Pulse-Width Modulation Timer Enable
$0063
Bit 7
6
5
TPWSL DISCP
—
RESET:
0
0
0
4
3
2
1
Bit 0
—
PWEN4 PWEN3 PWEN2 PWEN1
0
0
0
0
0
TPWSL — PWM Scaled Clock Test Bit (TEST)
DISCP — Disable Compare Scaled E Clock (TEST)
Bits [5:4] — Not implemented
Always read zero
PWEN[1:4] — Pulse-Width Channel 1–4
0 = Channel disabled
1 = Channel enabled
MC68HC11KA4
MC68HC11KA4TS/D
MOTOROLA
65