Datasheet

 2003 Microchip Technology Inc. Preliminary DS40300C-page 41
PIC16F62X
TABLE 5-3: PORTB FUNCTIONS
TABLE 5-4: SUMMARY OF REGISTERS ASSOCIATED WITH PORTB
(1)
Name Function Input Type
Output
Type
Description
RB0/INT RB0 TTL CMOS Bi-directional I/O port. Can be software programmed for
internal weak pull-up.
INT ST — External interrupt.
RB1/RX/DT RB1 TTL CMOS Bi-directional I/O port. Can be software programmed for
internal weak pull-up.
RX ST — USART Receive Pin
DT ST CMOS Synchronous data I/O
RB2/TX/CK RB2 TTL CMOS Bi-directional I/O port
TX — CMOS USART Transmit Pin
CK ST CMOS Synchronous Clock I/O. Can be software programmed
for internal weak pull-up.
RB3/CCP1 RB3 TTL CMOS Bi-directional I/O port. Can be software programmed for
internal weak pull-up.
CCP1 ST CMOS Capture/Compare/PWM/I/O
RB4/PGM RB4 TTL CMOS Bi-directional I/O port. Can be software programmed for
internal weak pull-up.
PGM ST — Low voltage programming input pin. Interrupt-on-pin
change. When low voltage programming is enabled, the
interrupt-on-pin change and weak pull-up resistor are
disabled.
RB5 RB5 TTL CMOS Bi-directional I/O port. Interrupt-on-pin change. Can be
software programmed for internal weak pull-up.
RB6/T1OSO/T1CKI/
PGC
RB6 TTL CMOS Bi-directional I/O port. Interrupt-on-pin change. Can be
software programmed for internal weak pull-up.
T1OSO — XTAL Timer1 Oscillator Output
T1CKI ST — Timer1 Clock Input
PGC ST — ICSP Programming Clock
RB7/T1OSI/PGD RB7 TTL CMOS Bi-directional I/O port. Interrupt-on-pin change. Can be
software programmed for internal weak pull-up.
T1OSI XTAL — Timer1 Oscillator Input
PGD ST CMOS ICSP Data I/O
Legend: O = Output CMOS = CMOS Output P = Power
— = Not used I = Input ST = Schmitt Trigger Input
TTL = TTL Input OD = Open Drain Output AN = Analog
Address Name Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
Value on
POR
Value on
All Other
RESETS
06h, 106h PORTB RB7 RB6 RB5 RB4 RB3 RB2 RB1 RB0 xxxx xxxx uuuu uuuu
86h, 186h TRISB TRISB7 TRISB6 TRISB5 TRISB4 TRISB3 TRISB2 TRISB1 TRISB0 1111 1111 1111 1111
81h, 181h OPTION RBPU
INTEDG T0CS T0SE PSA PS2 PS1 PS0 1111 1111 1111 1111
Legend: u = unchanged, x = unknown
Note 1: Shaded bits are not used by PORTB.