PIC16C782 Microchip Technology Inc., PIC16C782 Datasheet - Page 102

• Manufacturer Part Number: PIC16C782
• Description: 8-bit Cmos Microcontrollers With A/d, D/a, Opamp, Comparators And Psmc
• Manufacturer: Microchip Technology Inc.

PIC16C781/782
FIGURE 13-2:
TABLE 13-1:
Legend: x = Don’t Care
DS41171A-page 100
Beginning of PWM cycle
During Min Duty Cycle
After Min Duty Cycle, Before
Max Duty Cycle
Max Duty Cycle
SMCCL1
SMCCL0
F
OSC
MAXDC<1:0>
Time
MINDC<1:0>
C1POL
C2POL
Comparator Module
1:1
C1
C2
S1
3
PSMC1A OUTPUT SEQUENCE IN PWM MODE USING C1 COMPARATOR ONLY
S0
1:2
2
PSMC MODULE IN DUAL ALTERNATING OUTPUT PWM MODE (SIMPLIFIED
BLOCK DIAGRAM)
1:4
PSMC
CLK
1
q = Prior State
2
2
1:8
0
Controller
4-bit Counter
PSMC
MINDC<1:0>
Cycle A
Cycle B
4
non-zero
non-zero
New
New
Max
C1OUT
SMCCS
C2OUT
DC
00
x
x
0 = Inactive
RB6/C1/
EXAMPLE
New Cycle A
New Cycle B
Max DC
C1OUT
PSMC1A
RB7/C2/
PSMC1B/T1G
DC = Duty Cycle
Preliminary
1 = Active
ASSUMES S1APOL=0
Min DC
C1OUT
H
L
H
L
x
x
x
H
L
S1BPOL
Period
S1APOL
S1BPOL=0
Dominant
S
Dominant
S
R
R
H = High
Set
Set
Q
Q
Min DC
SMCCS=0 PWM/PSM=1
SMCON=1 SMCOM=1
PSMC1A Output Signal
L = Low
Period
2001 Microchip Technology Inc.
0
0
q
q
0
1
0
Min DC
0
0
1
1
RB7/C2/PSMC1B/T1G
RB6/C1/PSMC1A