Datasheet

PIC16(L)F720/721
DS40001430E-page 58  2010-2013 Microchip Technology Inc.
FIGURE 6-8: BLOCK DIAGRAM OF RB5 FIGURE 6-9: BLOCK DIAGRAM OF RB6
I/O Pin
VDD
VSS
D
Q
CK
Q
D
Q
CK
Q
D
Q
CK
Q
D
Q
CK
Q
VDD
D
EN
Q
D
EN
Q
Weak
Data Bus
WR
WPUB
RD
WPUB
RD PORTB
RD
PORTB
WR
PORTB
WR
TRISB
RD
TRISB
WR
IOCB
RD
IOCB
Interrupt-on-
To AUSART RX/DT
Analog
(1)
Input mode
RABPU
Analog
(1)
Input mode
Change
Q3
To A/D Converter
SYNC
ST
AUSART
DT
SPEN
Note 1: ANSEL determines Analog Input mode.
0
1
1
0
0
1
1
0
From
AUSART
I/O Pin
VDD
VSS
D
Q
CK
Q
D
Q
CK
Q
D
Q
CK
Q
D
Q
CK
Q
VDD
D
EN
Q
D
EN
Q
Weak
Data Bus
WR
WPUB
RD
WPUB
RD PORTB
RD
PORTB
WR
PORTB
WR
TRISB
RD
TRISB
WR
IOCB
RD
IOCB
Interrupt-on-
To SSP
RABPU
Change
Q3
SSPEN
ST
0
1
1
0
0
1
1
0
From
SSP
SSP
Clock