PIC18F2331_07 Datasheet, PDF (184/400 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:
POWER CONTROL PWM MODULE BLOCK DIAGRAM
Internal Data Bus
8
PWMCON0
8
PWMCON1
PWM Enable and Mode
8
DTCON
Dead-Time Control
8
FLTCONFIG
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
8
SEVTDIR
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
PIC18F2331/2431 devices.
DS39616C-page 182
Preliminary
© 2007 Microchip Technology Inc.