p16f877 Microchip Technology Inc., p16f877 Datasheet - Page 60

• Manufacturer Part Number: p16f877
• Description: 28/40-pin 8-bit Cmos Flash Microcontrollers
• Manufacturer: Microchip Technology Inc.

PIC16F87X
REGISTER 8-1:
DS30292C-page 58
bit 7-6
bit 5-4
bit 3-0
CCP1CON REGISTER/CCP2CON REGISTER (ADDRESS: 17h/1Dh)
bit 7
Unimplemented: Read as '0'
CCPxX:CCPxY: PWM Least Significant bits
Capture mode:
Unused
Compare mode:
Unused
PWM mode:
These bits are the two LSbs of the PWM duty cycle. The eight MSbs are found in CCPRxL.
CCPxM3:CCPxM0: CCPx Mode Select bits
0000 = Capture/Compare/PWM disabled (resets CCPx module)
0100 = Capture mode, every falling edge
0101 = Capture mode, every rising edge
0110 = Capture mode, every 4th rising edge
0111 = Capture mode, every 16th rising edge
1000 = Compare mode, set output on match (CCPxIF bit is set)
1001 = Compare mode, clear output on match (CCPxIF bit is set)
1010 = Compare mode, generate software interrupt on match (CCPxIF bit is set, CCPx pin is
1011 = Compare mode, trigger special event (CCPxIF bit is set, CCPx pin is unaffected); CCP1
11xx = PWM mode
Legend:
R = Readable bit
- n = Value at POR
U-0
—
unaffected)
resets TMR1; CCP2 resets TMR1 and starts an A/D conversion (if A/D module is
enabled)
U-0
—
CCPxX
R/W-0
W = Writable bit
’1’ = Bit is set
CCPxY
R/W-0
CCPxM3
R/W-0
U = Unimplemented bit, read as ‘0’
’0’ = Bit is cleared
CCPxM2 CCPxM1
R/W-0
2001 Microchip Technology Inc.
x = Bit is unknown
R/W-0
CCPxM0
R/W-0
bit 0