Datasheet



1996 Microchip Technology Inc. DS30412C-page 59

PIC17C4X

TABLE 9-5: PORTC FUNCTIONS

TABLE 9-6: REGISTERS/BITS ASSOCIATED WITH PORTC

Name Bit Buffer Type Function

RC0/AD0 bit0 TTL Input/Output or system bus address/data pin.

RC1/AD1 bit1 TTL Input/Output or system bus address/data pin.

RC2/AD2 bit2 TTL Input/Output or system bus address/data pin.

RC3/AD3 bit3 TTL Input/Output or system bus address/data pin.

RC4/AD4 bit4 TTL Input/Output or system bus address/data pin.

RC5/AD5 bit5 TTL Input/Output or system bus address/data pin.

RC6/AD6 bit6 TTL Input/Output or system bus address/data pin.

RC7/AD7 bit7 TTL Input/Output or system bus address/data pin.

Legend: TTL = TTL input.

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

(Note1)

11h, Bank 1 PORTC

RC7/

AD7

RC6/

AD6

RC5/

AD5

RC4/

AD4

RC3/

AD3

RC2/

AD2

RC1/

AD1

RC0/

AD0

xxxx xxxx uuuu uuuu

10h, Bank 1 DDRC Data direction register for PORTC

1111 1111 1111 1111

Legend:

= unknown,

= unchanged.

Note 1: Other (non power-up) resets include: external reset through MCLR

and the Watchdog Timer Reset.