PIC18F6525_13 Datasheet, PDF(105/400 Page) Microchip Technology – 64/80-Pin High-Performance, 64-Kbyte Enhanced Flash Microcontrollers with A/D

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PIC18F6525_13 Datasheet, PDF (105/400 Pages) Microchip Technology – 64/80-Pin High-Performance, 64-Kbyte Enhanced Flash Microcontrollers with A/D

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PIC18F6525/6621/8525/8621

TABLE 10-1: PORTA FUNCTIONS

Name

Bit# Buffer

Function

RA0/AN0

bit 0 TTL Input/output or analog input.

RA1/AN1

bit 1 TTL Input/output or analog input.

RA2/AN2/VREF-

bit 2 TTL Input/output, analog input or VREF-.

RA3/AN3/VREF+

bit 3 TTL Input/output, analog input or VREF+.

RA4/T0CKI

bit 4

ST Input/output or external clock input for Timer0.

Output is open-drain type.

RA5/AN4/LVDIN

bit 5 TTL Input/output, analog input or Low-Voltage Detect input.

OSC2/CLKO/RA6

bit 6 TTL OSC2, clock output or I/O pin

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

TABLE 10-2: SUMMARY OF REGISTERS ASSOCIATED WITH PORTA

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

PORTA

LATA

TRISA

â RA6(1) RA5 RA4 RA3 RA2 RA1 RA0 -x0x 0000 -u0u 0000

â LATA6(1) LATA Data Output Register

-xxx xxxx -uuu uuuu

â TRISA6(1) PORTA Data Direction Register

-111 1111 -111 1111

ADCON1 â

â

VCFG1 VCFG0 PCFG3 PCFG2 PCFG1 PCFG0 --00 0000 --00 0000

Legend: x = unknown, u = unchanged, â = unimplemented locations read as â0â.

Shaded cells are not used by PORTA.

Note 1: RA6 and associated bits are configured as port pins in RCIO and ECIO Oscillator modes only and read â0â

in all other oscillator modes.

ï£ 2003-2013 Microchip Technology Inc.

DS39612C-page 105

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