參數(shù)資料
型號: PIC16LF818T-I/SS
元件分類: 微控制器/微處理器
英文描述: 8-BIT, FLASH, 10 MHz, RISC MICROCONTROLLER, PDSO20
封裝: 0.209 INCH, PLASTIC, MO-150, SSOP-20
文件頁數(shù): 118/176頁
文件大?。?/td> 3124K
代理商: PIC16LF818T-I/SS
PIC16F818/819
DS39598E-page 44
2004 Microchip Technology Inc.
TABLE 5-3:
PORTB FUNCTIONS
TABLE 5-4:
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/SDI/SDA
bit 1
TTL/ST(5) Input/output pin, SPI data input pin or I2C data I/O pin.
Internal software programmable weak pull-up.
RB2/SDO/CCP1
bit 2
TTL/ST(4) Input/output pin, SPI data output pin or
Capture input/Compare output/PWM output pin.
Internal software programmable weak pull-up.
RB3/CCP1/PGM(3)
bit 3
TTL/ST(2) Input/output pin, Capture input/Compare output/PWM output pin
or programming in LVP mode. Internal software programmable
weak pull-up.
RB4/SCK/SCL
bit 4
TTL/ST(5) Input/output pin or SPI and I2C clock pin (with interrupt-on-change).
Internal software programmable weak pull-up.
RB5/SS
bit 5
TTL
Input/output pin or SPI slave select pin (with interrupt-on-change).
Internal software programmable weak pull-up.
RB6/T1OSO/T1CKI/
PGC
bit 6
TTL/ST(2) Input/output pin, Timer1 oscillator output pin, Timer1 clock input pin or
serial programming clock (with interrupt-on-change).
Internal software programmable weak pull-up.
RB7/T1OSI/PGD
bit 7
TTL/ST(2) Input/output pin, Timer1 oscillator input pin or serial programming data
(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.
2:
This buffer is a Schmitt Trigger input when used in Serial Programming mode.
3:
Low-Voltage ICSP Programming (LVP) is enabled by default which disables the RB3 I/O function. LVP
must be disabled to enable RB3 as an I/O pin and allow maximum compatibility to the other 18-pin
mid-range devices.
4:
This buffer is a Schmitt Trigger input when configured for CCP or SSP mode.
5:
This buffer is a Schmitt Trigger input when configured for SPI or I2C 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 PORTB
RB7
RB6
RB5
RB4
RB3
RB2
RB1
RB0
xxxx xxxx
uuuu uuuu
86h, 186h TRISB
PORTB Data Direction Register
1111 1111
81h, 181h 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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