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PIC16CR74E/P Datasheet(PDF) 36 Page - Microchip Technology

Part # PIC16CR74E/P
Description  28/40-Pin, 8-Bit CMOS ROM Microcontrollers
PDF  172 Pages
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Manufacturer  MICROCHIP [Microchip Technology]
Direct Link  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

PIC16CR74E/P Datasheet(HTML) 36 Page - Microchip Technology

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PIC16CR7X
DS21993C-page 34
© 2007 Microchip Technology Inc.
TABLE 4-3:
PORTB FUNCTIONS
TABLE 4-4:
SUMMARY OF REGISTERS ASSOCIATED WITH PORTB
Name
Bit#
Buffer
Function
RB0/INT
bit 0
TTL/ST(1)
Input/output pin or external interrupt input. Internal software
programmable weak pull-up.
RB1
bit 1
TTL
Input/output pin. Internal software programmable weak pull-up.
RB2
bit 2
TTL
Input/output pin. Internal software programmable weak pull-up.
RB3
bit 3
TTL
Input/output pin. Internal software programmable weak pull-up.
RB4
bit 4
TTL
Input/output pin (with interrupt-on-change). Internal software programmable
weak pull-up.
RB5
bit 5
TTL
Input/output pin (with interrupt-on-change). Internal software programmable
weak pull-up.
RB6
bit 6
TTL
Input/output pin (with interrupt-on-change). Internal software programmable
weak pull-up.
RB7
bit 7
TTL
Input/output pin (with interrupt-on-change). Internal software programmable
weak pull-up.
Legend:
TTL = TTL input, ST = Schmitt Trigger input
Note 1:
This buffer is a Schmitt Trigger input when configured as the external interrupt.
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
xxxx xxxx
uuuu uuuu
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
Legend:
x
= unknown, u = unchanged. Shaded cells are not used by PORTB.



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