PIC18F2331 Datasheet, PDF (184/396 Pages) Microchip Technology – 28/40/44-Pin Enhanced Flash Microcontrollers with nanoWatt Technology, High Performance PWM and A/D

PIC18F2331/2431/4331/4431
FIGURE 17-1:
Internal Data Bus
POWER CONTROL PWM MODULE BLOCK DIAGRAM
8
PWMCON0
PWM Enable and Mode
8
PWMCON1
8
DTCON
Dead Time Control
8
FLTCON
Fault Pin Control
8
OVDCON<D/S>
PWM Manual Control
PWM Generator #3⁽¹⁾
8
PDC3 Buffer
PDC3
8
PTMR
Comparator
PTPER
8
PTPER Buffer
8
PTCON
Comparator
PWM Generator
#2
PWM Generator
#1
PWM Generator
#0
Channel 3
Dead Time Generator
and Override Logic⁽²⁾
Channel 2
Dead Time Generator
and Override Logic
Channel 1
Dead Time Generator
and Override Logic
Output
Driver
Block
Channel 0
Dead Time Generator
and Override Logic
PWM7⁽²⁾
PWM6⁽²⁾
PWM5
PWM4
PWM3
PWM2
PWM1
PWM0
FLTA
FLTB⁽²⁾
Comparator
SEVTDIR
8
SEVTCMP
PTDIR
Special Event
Postscaler
Special Event Trigger
Note 1: Only PWM Generator #3 is shown in detail. The other generators are identical; their details are omitted for clarity.
2: PWM Generator #3 and its logic, PWM channels 6 and 7, and FLTB and its associated logic are not implemented
on PIC18F2X31 devices.
DS39616B-page 182
Preliminary
 2003 Microchip Technology Inc.