Intel 8XC196MC User Manual page 210

Counter
Enabled
WG_COUNTER
Value
1
0
Reset
Figure 9-6. Edge-aligned Modes — Counter Operation
WG_COUNTER
1
WG_COUNTER
=WG_COMP
WG Interrupt
P6.0 / WG1#
P6.1 / WG1
Mode 3, OP0 = OP1 = 1, PH1.0 = PH1.1 = PH1.2 = 1
Figure 9-7. Edge-aligned Modes — Output Operation
8XC196MH only: The 8XC196MH device has an additional edge-aligned mode, mode 4. This
mode prevents the output "jitter" that can occur in mode 3 when an EPA event reloads
WG_COUNTER, which also causes a change in the duty cycle. In mode 4, an EPA event reloads
WG_OUTPUT, but WG_COMPx and WG_COUNTER are reloaded only when the counter
reaches the reload value.
WG_RELOAD
Value
Write to WG_RELOAD
WG_COMP x
Carrier
Period
Note:
Carrier period and duty cycle both
change since WG_COMP x is not changed.
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WAVEFORM GENERATOR
WG_RELOAD EPA Event
Updated (Mode 3 Only)
Carrier
Period
EPA Event
A2639-01
A2653-01
9-11