MC68HC11G5 Datasheet, PDF (150/195 Pages) Motorola, Inc – High-density Complementary Metal Oxide Semiconductor (HCMOS) Microcontroller

Freescale Semiconductor, Inc.
11.9 BOUNDARY CONDITIONS OF THE PWM FUNCTION
The PWM function (In modes 1, 2, and 3) follows the boundary conditions described below. The
period is determined by the value in the ECMP1A register (8-bit). The duty value is determined by
the values in the ECMP1A and ECMP1B registers (8-bit).
If duty = 0, period > 0, EVPOL = 0 and EVOEN = 1; PH6 is always high.
If duty = 0, period > 0, EVPOL = 1 and EVOEN = 1; PH6 is always low.
If duty ≥ period, EVPOL = 0 and EVOEN =1;
PH6 is always low.
If duty ≥ period, EVPOL = 1 and EVOEN =1;
PH6 is always high.
If period = 0, EVPOL = 0 and EVOEN =1;
PH6 is always low.
If period = 0, EVPOL = 1 and EVOEN =1;
PH6 is always high.
If EVOEN = 0;
PH6 is I/O port under the control of
DDRH bit 6.
11-20
EVENT COUNTER
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