PIC18F2455-I/SP Microchip Technology Inc., PIC18F2455-I/SP Datasheet - Page 125

• Manufacturer Part Number: PIC18F2455-I/SP
• Description: Microcontroller; 24 KB Flash; 2048 RAM; 256 EEPROM; 24 I/O; 28-Pin-SPDIP
• Manufacturer: Microchip Technology Inc.

Specifications of PIC18F2455-I/SP

• A/d Inputs: 10-Channel, 10-Bit
• Comparators: 2
• Cpu Speed: 12 MIPS
• Eeprom Memory: 256 Bytes
• Input Output: 23
• Interface: I2C/SPI/USART/USB
• Memory Type: Flash
• Number Of Bits: 8
• Package Type: 28-pin SPDIP
• Programmable Memory: 24K Bytes
• Ram Size: 2K Bytes
• Speed: 48 MHz
• Timers: 1-8-bit, 3-16-bit
• Voltage, Range: 2-5.5 V
• Lead Free Status / Rohs Status: RoHS Compliant part Electrostatic Device

13.0
PIC18F2450/4450 devices have one CCP (Capture/
Compare/PWM) module. The module contains a 16-bit
register, which can operate as a 16-bit Capture register,
a 16-bit Compare register or a PWM Master/Slave Duty
Cycle register.
REGISTER 13-1:
© 2006 Microchip Technology Inc.
bit 7
Legend:
R = Readable bit
-n = Value at POR
bit 7-6
bit 5-4
bit 3-0
U-0
—
CAPTURE/COMPARE/PWM
(CCP) MODULE
Unimplemented: Read as ‘0’
DC1B1:DC1B0: PWM Duty Cycle for CCP Module bits
Capture mode:
Unused.
Compare mode:
Unused.
PWM mode:
These bits are the two LSbs (bit 1 and bit 0) of the 10-bit PWM duty cycle. The eight MSbs of the duty
cycle are found in CCPR1L.
CCP1M3:CCP1M0: CCP Module Mode Select bits
0000 = Capture/Compare/PWM disabled (resets CCP module)
0001 = Reserved
0010 = Compare mode: toggle output on match (CCP1IF bit is set)
0011 = Reserved
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: initialize CCP1 pin low; on compare match, force CCP1 pin high
1001 = Compare mode: initialize CCP1 pin high; on compare match, force CCP1 pin low
1010 = Compare mode: generate software interrupt on compare match (CCP1IF bit is set,
1011 = Compare mode: trigger special event, reset timer and start A/D conversion on CCP1 match
11xx = PWM mode
U-0
—
CCP1CON: CAPTURE/COMPARE/PWM CONTROL REGISTER
(CCP1IF bit is set)
(CCP1IF bit is set)
CCP1 pin reflects I/O state)
(CCP1IF bit is set)
W = Writable bit
‘1’ = Bit is set
DC1B1
R/W-0
Advance Information
DC1B0
R/W-0
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
CCP1M3
R/W-0
PIC18F2450/4450
CCP1M2
R/W-0
x = Bit is unknown
CCP1M1
R/W-0
DS39760A-page 123
CCP1M0
R/W-0
bit 0