PIC18F2331 MICROCHIP [Microchip Technology], PIC18F2331 Datasheet - Page 274

• Manufacturer Part Number: PIC18F2331
• Description: 28/40/44-Pin Enhanced Flash Microcontrollers with nanoWatt Technology, High Performance PWM and A/D
• Manufacturer: MICROCHIP [Microchip Technology]

PIC18F2331/2431/4331/4431
REGISTER 22-5:
DS39616B-page 272
bit 7
bit 6-5
bit 4
bit 3
bit 2
bit 1
bit 0
Legend:
R = Readable bit
- n = Value when device is unprogrammed
bit 7
MCLRE: MCLR Pin Enable bit
1 = RE3 input pin enabled; MCLR disabled.
0 = MCLR pin enabled: RE3 input pin disabled.
Unimplemented: Read as ‘0’
EXCLKMX: TMR0/T5CKI External Clock Mux bit
1 = TMR0/T5CKI external clock input is multiplexed with RC3
0 = TMR0/T5CKI external clock input is multiplexed with RD0
PWM4MX: PWM4 Mux bit
1 = PWM4 output is multiplexed with RB5
0 = PWM4 output is multiplexed with RD5
SSPMX: SSP I/O Mux bit
1 = SCK/SCL clocks and SDA/SDI data are multiplexed with RC5 and RC4 respectively.
0 = SCK/SCL clocks and SDA/SDI data are multiplexed with RD3 and RD2 respectively.
Unimplemented: Read as ‘0’
FLTAMX: FLTA Mux bit
1 = FLTA input is multiplexed with RC1
0 = FLTA input is multiplexed with RD4
MCLRE
R/P-1
Note 1: Unimplemented in PIC18F2X31 devices; maintain this bit set.
CONFIG3H: CONFIGURATION REGISTER 3 HIGH (BYTE ADDRESS 300005h)
SDO output is multiplexed with RC7.
SDO output is multiplexed with RD1.
—
U
P = Programmable bit
—
U
Preliminary
EXCLKMX
R/P-1
(1)
PWM4MX
U = Unimplemented bit, read as ‘0’
u = Unchanged from programmed state
R/P-1
(1)
SSPMX
R/P-1
 2003 Microchip Technology Inc.
(1)
—
U
FLTAMX
R/P-1
bit 0
(1)