PIC16F722A Datasheet, PDF (71/284 Pages) Microchip Technology – 28-Pin Flash Microcontrollers with nanoWatt XLP Technology

FIGURE 6-17:
BLOCK DIAGRAM OF RC4
SSPEN
SSPM = I²C™ Mode
Data Bus
1
DQ
0
WR
PORTC
CK _Q
WR
TRISC
DQ
CK _Q
RD
TRISC
To SSP SPI
Data Input
01
RD
PORTC
10
SDA from SSP
PIC16F/LF722A/723A
VDD
(2)
I/O Pin
VSS
To SSP I²C™
SDA Input
Note 1: I²C™ Schmitt Trigger has special input levels.
2: I²C™ Slew Rate limiting controlled by SMP bit of SSPSTAT register.
FIGURE 6-18:
BLOCK DIAGRAM OF RC5
SSPEN
SSPM = SPI Mode
Data Bus
SDO 1
DQ
0
WR
PORTC
CK _Q
WR
TRISC
DQ
CK _Q
SDO
EN
RD
TRISC
RD
PORTC
I²C™⁽¹⁾
VDD
I/O Pin
VSS
 2010 Microchip Technology Inc.
DS41417A-page 71