PIC18F2331 MICROCHIP [Microchip Technology], PIC18F2331 Datasheet - Page 122

• 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
FIGURE 10-16:
FIGURE 10-17:
DS39616B-page 120
Note 1: The T0CKI/T5CKI bit is multiplexed with RD0 when the EXCLKM is enabled (= 1 ) in the configuration register.
T0CKI/T5CKI Input
Note 1: The SDI/SDA bits are multiplexed on RD2 and RC4 pins by SSPMX bit in the configuration register.
RD PORTC
WR TRISC
SDA Data Out
SDI/SDA Input
WR LATC
Data Bus
PORTC
RD PORTC
PORT/SSP Mode & SSPMX Select
WR TRISC
SDA Drive
WR LATC
Data Bus
PORTC
or
or
BLOCK DIAGRAM OF RC3
BLOCK DIAGRAM OF RC4
TRIS Latch
D
Data Latch
D
RD TRISC
CK
CK
TRIS Latch
Data Latch
D
D
RD TRISC
CK
CK
RD LATC
Q
Q
Q
Q
RD LATC
Q
Q
Q
Q
Preliminary
0
1
Q
Q
EN
D
EN
D
V
V
N
P
SS
DD
Schmitt
Trigger
V
V
N
P
SS
DD
Schmitt
Trigger
 2003 Microchip Technology Inc.
EXCLKMX_enable
SSPMX
RC3 Pin
RC4 Pin
(1)
(1)