PIC16LC8X 查看數據表（PDF） - Microchip Technology

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PIC16LC8X

8-Bit CMOS EEPROM Microcontrollers

Microchip Technology 

PIC16C8X

TABLE 5-1: PORTA FUNCTIONS

Name

Bit0

Buffer Type

Function

RA0

bit0

TTL

Input/output

RA1

bit1

TTL

Input/output

RA2

bit2

TTL

Input/output

RA3

bit3

TTL

Input/output

RA4/T0CKI

bit4

ST

Input/output or external clock input for TMR0.

Output is open drain type.

Legend: TTL = TTL input, ST = Schmitt Trigger input

TABLE 5-2: SUMMARY OF REGISTERS ASSOCIATED WITH PORTA

Address Name

Bit 7 Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

Value on

Power-on

Reset

Value on all

other resets

05h

PORTA

85h

TRISA

—

—

—

—

—

RA4/T0CKI

RA3

RA2

RA1

RA0 ---x xxxx ---u uuuu

—

TRISA4

TRISA3 TRISA2 TRISA1 TRISA0 ---1 1111 ---1 1111

Legend: x = unknown, u = unchanged, - = unimplemented read as '0'. Shaded cells are unimplemented, read as '0'

DS30081F-page 22

© 1995 Microchip Technology Inc.

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