PIC16F882-I Datasheet, PDF (57/328 Pages) Microchip Technology – 28/40/44-Pin, Enhanced Flash-Based 8-Bit CMOS Microcontrollers

PIC16F882/883/884/886/887
3.5.4 RC3/SCK/SCL
Figure 3-14 shows the diagram for this pin. This pin is
configurable to function as one of the following:
• a general purpose I/O
• a SPI clock
• an I²C™ clock
FIGURE 3-14:
Data Bus
DQ
WR
PORTC
CK _Q
WR
TRISC
DQ
CK _Q
RD
TRISC
BLOCK DIAGRAM OF RC3
SSPEN
SCK 01
10
VDD
I/O Pin
VSS
RD
PORTC
To SSPSR
3.5.5 RC4/SDI/SDA
Figure 3-15 shows the diagram for this pin. This pin is
configurable to function as one of the following:
• a general purpose I/O
• a SPI data I/O
• an I²C data I/O
FIGURE 3-15:
Data Bus
DQ
WR
PORTC
CK _Q
WR
TRISC
DQ
CK _Q
RD
TRISC
BLOCK DIAGRAM OF RC4
SSPEN
SDI/SDA ₀₁
10
VDD
I/O Pin
VSS
RD
PORTC
To SSPSR
3.5.6 RC5/SDO
Figure 3-16 shows the diagram for this pin. This pin is
configurable to function as one of the following:
• a general purpose I/O
• a serial data output
FIGURE 3-16:
Data Bus
DQ
WR
PORTC
CK _Q
BLOCK DIAGRAM OF RC5
Port/SDO
Select
SDO ⁰¹
10
VDD
I/O Pin
DQ
WR
TRISC
CK _Q
VSS
RD
TRISC
RD
PORTC
© 2009 Microchip Technology Inc.
DS41291F-page 55