PIC18F248-E/L MICROCHIP [Microchip Technology], PIC18F248-E/L Datasheet - Page 139

• Manufacturer Part Number: PIC18F248-E/L
• Description: 28/40-Pin High-Performance, Enhanced Flash Microcontrollers with CAN Module
• Manufacturer: MICROCHIP [Microchip Technology]

16.5.3
In Full-Bridge Output mode, four pins are used as out-
puts; however, only two outputs are active at a time. In
the Forward mode, pin RD4/PSP4/ECCP1/P1A is con-
tinuously active and pin RD7/PSP7/P1D is modulated.
In the Reverse mode, RD6/PSP6/P1C pin is continu-
ously active and RD5/PSP5/P1B pin is modulated.
These are illustrated in Figure 16-5.
FIGURE 16-5:
© 2006 Microchip Technology Inc.
Note 1: At this time, the TMR2 register is equal to the PR2 register.
Note
FORWARD MODE
REVERSE MODE
FULL-BRIDGE MODE
2: Output signal is shown as asserted high.
P1A
P1B
P1C
P1D
P1A
P1B
P1C
P1D
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
FULL-BRIDGE PWM OUTPUT
(1)
(1)
Duty Cycle
Duty Cycle
Period
Period
P1A, P1B, P1C and P1D outputs are multiplexed with
the PORTD<4:7> data latches. The TRISD<4:7> bits
must be cleared to make the P1A, P1B, P1C and P1D
pins output.
(1)
(1)
PIC18FXX8
DS41159E-page 137