參數(shù)資料
型號: PIC16C72A-04I/SS
元件分類: 微控制器/微處理器
英文描述: 8-BIT, OTPROM, 4 MHz, RISC MICROCONTROLLER, PDSO28
封裝: 0.209 INCH, PLASTIC, MS-150, SSOP-28
文件頁數(shù): 15/34頁
文件大?。?/td> 2123K
代理商: PIC16C72A-04I/SS
PIC16C62B/72A
DS35008B-page 22
Preliminary
1999 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.
RB1
bit1
TTL
Input/output pin. Internal software programmable weak pull-up.
RB2
bit2
TTL
Input/output pin. Internal software programmable weak pull-up.
RB3
bit3
TTL
Input/output pin. Internal software programmable weak pull-up.
RB4
bit4
TTL
Input/output pin (with interrupt on change).
Internal software programmable weak pull-up.
RB5
bit5
TTL
Input/output pin (with interrupt on change).
Internal software programmable weak pull-up.
RB6
bit6
TTL/ST(2)
Input/output pin (with interrupt on change).
Internal software programmable weak pull-up. Serial programming clock.
RB7
bit7
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.
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
PORTB
RB7
RB6
RB5
RB4
RB3
RB2
RB1
RB0
xxxx xxxx
uuuu uuuu
86h
TRISB
PORTB Data Direction Register
1111 1111
81h
OPTION_REG
RBPU
INTEDG
T0CS
T0SE
PSA
PS2
PS1
PS0
1111 1111
Legend: x = unknown, u = unchanged. Shaded cells are not used by PORTB.
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