參數(shù)資料
型號: PIC16F77
廠商: Microchip Technology Inc.
英文描述: 40-Pin 8-Bit CMOS FLASH Microcontrollers(40腳、8位CMOS 閃速微控制器)
中文描述: 40引腳8位CMOS閃存微控制器(40腳,8位的CMOS閃速微控制器)
文件頁數(shù): 32/170頁
文件大?。?/td> 3150K
代理商: PIC16F77
PIC16F7X
DS30325A-page 32
Advance Information
2000 Microchip Technology Inc.
TABLE 3-3:
PORTB FUNCTIONS
TABLE 3-4:
SUMMARY OF REGISTERS ASSOCIATED WITH PORTB
Name
Bit#
Buffer
Function
RB0/INT
bit0
TTL/ST
(1)
Input/output pin or external interrupt input. Internal software
programmable weak pull-up.
Input/output pin. Internal software programmable weak pull-up.
Input/output pin. Internal software programmable weak pull-up.
Input/output pin. Internal software programmable weak pull-up.
Input/output pin (with interrupt-on-change). Internal software programmable
weak pull-up.
Input/output pin (with interrupt-on-change). Internal software programmable
weak pull-up.
Input/output pin (with interrupt-on-change).
Internal software programmable weak pull-up. Serial programming clock.
Input/output pin (with interrupt-on-change).
Internal software programmable weak pull-up. Serial programming data.
RB1
RB2
RB3
RB4
bit1
bit2
bit3
bit4
TTL
TTL
TTL
TTL
RB5
bit5
TTL
RB6
bit6
TTL/ST
(2)
RB7
TTL/ST
(2)
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.
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
86h, 186h
PORTB
TRISB
RB7
PORTB Data Direction Register
RB6
RB5
RB4
RB3
RB2
RB1
RB0
xxxx xxxx uuuu uuuu
1111 1111 1111 1111
81h, 181h
Legend:
OPTION_REG
x
= unknown,
u
= unchanged. Shaded cells are not used by PORTB.
RBPU
INTEDG
T0CS
T0SE
PSA
PS2
PS1
PS0
1111 1111 1111 1111
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