PIC16F737-I Datasheet, PDF (66/276 Pages) Microchip Technology – 28/40/44-Pin, 8-Bit CMOS Flash Microcontrollers with 10-Bit A/D and nanoWatt Technology

PIC16F7X7
TABLE 5-3: PORTB FUNCTIONS
Name
Bit# Buffer
Function
RB0/INT/AN12
bit 0 TTL/ST⁽¹⁾ Input/output pin or external interrupt input. Internal software
programmable weak pull-up or analog input.
RB1/AN10
bit 1
TTL Input/output pin. Internal software programmable weak pull-up or
analog input.
RB2/AN8
bit 2
TTL Input/output pin. Internal software programmable weak pull-up or
analog input.
RB3/CCP2/AN9
bit 3
TTL Input/output pin or Capture 2 input/Compare 2 output/PWM 2 output.
Internal software programmable weak pull-up or analog input.
RB4/AN11
bit 4
TTL Input/output pin (with interrupt-on-change). Internal software
programmable weak pull-up or analog input.
RB5/AN13/CCP3
RB6/PGC
RB7/PGD
bit 5
TTL Input/output pin (with interrupt-on-change). Internal software
programmable weak pull-up or analog input or Capture 2 input/
Compare 2 output/PWM 2 output.
bit 6 TTL/ST⁽²⁾ Input/output pin (with interrupt-on-change). Internal software
programmable weak pull-up. Serial programming clock.
bit 7 TTL/ST⁽²⁾ Input/output pin (with interrupt-on-change). Internal software
programmable weak pull-up. Serial programming data.
Legend: TTL = TTL input, ST = Schmitt Trigger input
Note 1: This buffer is a Schmitt Trigger input when configured as the external interrupt.
2: This buffer is a Schmitt Trigger input when used in Serial Programming mode.
TABLE 5-4: SUMMARY OF REGISTERS ASSOCIATED WITH PORTB
Address
Name
Bit 7 Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Value on:
POR, BOR
Value on
all other
Resets
06h, 106h PORTB
RB7 RB6
RB5
RB4 RB3 RB2 RB1 RB0 xx00 0000 uu00 0000
86h, 186h TRISB
PORTB Data Direction Register
1111 1111 1111 1111
81h, 181h OPTION_REG RBPU INTEDG T0CS T0SE PSA PS2 PS1 PS0 1111 1111 1111 1111
9Fh
ADCON1
ADFM ADCS2 VCFG1 VCFG0 PCFG3 PCFG2 PCFG1 PCFG0 0000 0000 0000 0000
Legend: x = unknown, u = unchanged. Shaded cells are not used by PORTB.
DS30498C-page 64
 2004 Microchip Technology Inc.