PIC18F258 MICROCHIP [Microchip Technology], PIC18F258 Datasheet - Page 137

• Manufacturer Part Number: PIC18F258
• Description: High Performance, 28/40-Pin Enhanced FLASH Microcontrollers with CAN
• 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:
 2002 Microchip Technology Inc.
FORWARD MODE
REVERSE MODE
Note 1: At this time, the TMR2 register is equal to the PR2 register.
Note
2: Output signal is shown as asserted high.
P1A
P1B
P1C
P1D
P1A
P1B
P1C
P1D
FULL-BRIDGE MODE
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
FULL-BRIDGE PWM OUTPUT
(1)
(1)
Duty Cycle
Duty Cycle
Period
Period
Preliminary
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
DS41159B-page 135