Information

PIC16F62X
DS80073H-page 2  2000-2012 Microchip Technology Inc.
FIGURE 5-9: BLOCK DIAGRAM OF RB1/RX/DT PIN
Data Latch
TRIS Latch
RD TRISB
P
V
SS
Q
D
Q
CK
Q
D
Q
CK
N
VDD
0
1
RD PORTB
WR PORTB
WR TRISB
Schmitt
Trigger
Peripheral OE
(2)
Data Bus
Port/Peripheral
Select
(1)
USART Data Output
RD PORTB
RB1/RX/DT
USART Receive Input
RBPU
VDD
Weak Pull-up
TTL
Input
Buffer
P
pin
EN
QD
VDD
VSS
Note 1: Port/Peripheral select signal selects between port data and peripheral output.
2: Peripheral OE (output enable) is only active if peripheral select is active.