PIC16C63A Microchip Technology, PIC16C63A Datasheet - Page 26

• Manufacturer Part Number: PIC16C63A
• Description: 28/40-Pin 8-Bit CMOS Microcontrollers
• Manufacturer: Microchip Technology

PIC16C63A/65B/73B/74B
TABLE 3-1:
TABLE 3-2:
DS30605A-page 26
Name
RA0/AN0
RA1/AN1
RA2/AN2
RA3/AN3/V
RA4/T0CKI
RA5/SS/AN4
Legend: TTL = TTL input, ST = Schmitt Trigger input
Note 1: On PIC16C73B/74B devices only.
Address Name
05h
85h
9Fh
Legend: x = unknown, u = unchanged, - = unimplemented locations read as '0'. Shaded cells are not used by PORTA.
Note 1: On PIC16C73B/74B devices only.
PORTA
TRISA
ADCON1
REF
PORTA FUNCTIONS
SUMMARY OF REGISTERS ASSOCIATED WITH PORTA
(1)
Bit#
bit0
bit1
bit2
bit3
bit4
bit5
Bit 7 Bit 6
—
—
—
Buffer
TTL
TTL
TTL
TTL
ST
TTL
—
—
—
PORTA Data Direction Register
Bit 5
RA5
Function
Input/output or analog input
Input/output or analog input
Input/output or analog input
Input/output or analog input
Input/output or external clock input for Timer0
Output is open drain type
Input/output or slave select input for synchronous serial port or analog input
—
Bit 4
RA4
—
Bit 3
RA3
—
PCFG2
(1)
(1)
(1)
(1)
Bit 2
RA2
or V
REF
PCFG1
Bit 1
RA1
(1)
PCFG0
Bit 0
RA0
1998 Microchip Technology Inc.
--0x 0000
--11 1111
---- -000
Value on
POR,
BOR
other resets
Value on all
--0u 0000
--11 1111
---- -000
(1)