PIC18F2331_07 Datasheet, PDF (124/400 Pages) Microchip Technology – 28/40/44-Pin Enhanced Flash Microcontrollers with nanoWatt Technology, High Performance PWM and A/D

PIC18F2331/2431/4331/4431
FIGURE 10-16: BLOCK DIAGRAM OF RC3
VDD
P
RD LATC
Data Bus
WR LATC
or PORTC
D
Q
CK Q
Data Latch
N
D
Q
VSS
WR TRISC
CK Q
TRIS Latch
RC3 Pin
RD TRISC
RD PORTC
T0CKI/T5CKI Input
Q
D
EN
Schmitt
Trigger
EXCLKMX_enable⁽¹⁾
Note 1: The T0CKI/T5CKI bit is multiplexed with RD0 when the EXCLKMX is enabled (= 1) in the Configuration register.
FIGURE 10-17: BLOCK DIAGRAM OF RC4
PORT/SSP Mode & SSPMX Select
SDA Data Out
0
RD LATC
1
Data Bus
WR LATC
or PORTC
D
Q
CK Q
Data Latch
WR TRISC
D
Q
CK Q
TRIS Latch
VDD
P
RC4 Pin
N
VSS
SDA Drive
RD TRISC
RD PORTC
SDI/SDA Input
Q
D
EN
Schmitt
Trigger
SSPMX⁽¹⁾
Note 1: The SDI/SDA bits are multiplexed with RD2 and RC4 pins by the SSPMX bit in the Configuration register.
DS39616C-page 122
Preliminary
© 2007 Microchip Technology Inc.