PIC18F2431-I/SP Microchip Technology Inc., PIC18F2431-I/SP Datasheet - Page 273

• Manufacturer Part Number: PIC18F2431-I/SP
• Description: Microcontroller; 16 KB Flash; 768 RAM; 256 EEPROM; 24 I/O; 28-Pin-SPDIP
• Manufacturer: Microchip Technology Inc.

Specifications of PIC18F2431-I/SP

• A/d Inputs: 5-Channel, 10-Bit
• Cpu Speed: 10 MIPS
• Eeprom Memory: 256 Bytes
• Input Output: 24
• Interface: I2C/SPI/USART
• Memory Type: Flash
• Number Of Bits: 8
• Package Type: 28-pin SPDIP
• Programmable Memory: 16K Bytes
• Ram Size: 768 Bytes
• Speed: 40 MHz
• Timers: 1-8-bit, 3-16-bit
• Voltage, Range: 2-5.5 V
• Lead Free Status / Rohs Status: RoHS Compliant part Electrostatic Device

REGISTER 22-4:
 2003 Microchip Technology Inc.
bit 7-6
bit 5
bit 4
bit 3
bit 2
bit 1-0
Unimplemented: Read as ‘0’
T1OSCMX: Timer1 Oscillator Mode bit
1 = Low power Timer1 operation when microcontroller is in Sleep mode.
0 = Standard (legacy) Timer1 oscillator operation.
HPOL
1 = PWM 1, 3, 5 and 7 are active-high (default)
0 = PWM 1, 3, 5 and 7 are active-low
LPOL
1 = PWM 0, 2, 4 and 6 are active-high (default)
0 = PWM 0, 2, 4 and 6 are active-low
PWMPIN
1 = PWM outputs disabled upon Reset (default)
0 = PWM outputs drive active states upon Reset
Unimplemented: Read as ‘0’
Legend:
R = Readable bit
- n = Value when device is unprogrammed
bit 7
CONFIG3L: CONFIGURATION REGISTER 3 LOW (BYTE ADDRESS 300004h)
Note 1: Polarity control bits HPOL and LPOL define PWM signal output active and inactive
U-0
—
(1)
(1
)
2: PWM6 and PWM7 output channels are only available on the PIC18F4X21 devices.
3: When PWMPIN = 0, PWMEN<2:0> = 101 if device has eight PWM output pins (40
: Low-Side Transistors Polarity bit (i.e., even PWM output polarity control bit)
: High-Side Transistors Polarity bit (i.e., odd PWM output polarity control bit )
(2)
: PWM output pins Reset state control bit
states; PWM states generated by the fault inputs or PWM manual override.
and 44-pin devices) and PWMEN<2:0> = 100 if the device has six PWM output pins
(28-pin device). PWM output polarity is defined by HPOL and LPOL.
—
U
PIC18F2331/2431/4331/4431
T1OSCMX
P = Programmable bit
R/P-1
Preliminary
HPOL
R/P-1
(3)
R/P-1
LPOL
U = Unimplemented bit, read as ‘0’
u = Unchanged from programmed state
PWMPIN
R/P-1
DS39616B-page 271
—
U
—
U
bit 0