PIC16C65B Microchip Technology Inc., PIC16C65B Datasheet - Page 30

• Manufacturer Part Number: PIC16C65B
• Description: 8-bit Cmos Microcontrollers With A/d Converter
• Manufacturer: Microchip Technology Inc.

PIC16C63A/65B/73B/74B
TABLE 5-1:
TABLE 5-2:
DS30605C-page 30
Name
RA0/AN0
RA1/AN1
RA2/AN2
RA3/AN3/V
RA4/T0CKI
RA5/SS/AN4
Legend: TTL = TTL input, ST = Schmitt Trigger input
Address
05h
85h
9Fh
Legend: x = unknown, u = unchanged, - = unimplemented locations read as '0'. Shaded cells are not used by PORTA.
Note 1: The A/D is not implemented on the PIC16C63A/65B. Pins will operate as digital I/O only. ADCON1 is not
Note 1: The A/D is not implemented on the PIC16C63A/65B. Pins will operate as digital I/O only. ADCON1 is not implemented;
(1)
(1)
(1)
PORTA
TRISA
ADCON1
REF
implemented; maintain this register clear.
maintain this register clear.
Name
(1)
(1)
PORTA FUNCTIONS
SUMMARY OF REGISTERS ASSOCIATED WITH PORTA
(1)
Bit#
bit0
bit1
bit2
bit3
bit4
bit5
Bit 7
—
—
—
Buffer
TTL
TTL
TTL
TTL
TTL
ST
Bit 6
—
—
—
Function
Digital input/output or analog input.
Digital input/output or analog input.
Digital input/output or analog input.
Digital input/output or analog input or V
Digital 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.
PORTA Data Direction Register
Bit 5
RA5
—
Bit 4
RA4
—
Bit 3
RA3
—
PCFG2
Bit 2
RA2
PCFG1 PCFG0
Bit 1
RA1
REF.
Bit 0
RA0
2000 Microchip Technology Inc.
--0x 0000
--11 1111
---- -000
Value on:
POR,
BOR
--0u 0000
--11 1111
---- -000
Value on
RESETS
all other