PIC16C65B-04E/SO View Datasheet(PDF) - Microchip Technology
Part Name
Description
Manufacturer
PIC16C65B-04E/SO Datasheet PDF : 184 Pages
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PIC16C63A/65B/73B/74B
TABLE 5-1: PORTA FUNCTIONS
Name
RA0/AN0(1)
RA1/AN1(1)
RA2/AN2(1)
RA3/AN3/VREF(1)
Bit#
bit0
bit1
bit2
bit3
Buffer
TTL
TTL
TTL
TTL
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 VREF.
RA4/T0CKI
bit4
ST
Digital input/output or external clock input for Timer0.
Output is open drain type.
RA5/SS/AN4(1)
bit5 TTL Input/output or slave select input for synchronous serial port or analog input.
Legend: TTL = TTL input, ST = Schmitt Trigger input
Note 1: The A/D is not implemented on the PIC16C63A/65B. Pins will operate as digital I/O only. ADCON1 is not
implemented; maintain this register clear.
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:
POR,
BOR
Value on
all other
RESETS
05h
PORTA
—
—
RA5
RA4
RA3
RA2
RA1 RA0 --0x 0000 --0u 0000
85h
TRISA
—
— PORTA Data Direction Register
--11 1111 --11 1111
9Fh
ADCON1(1) —
—
—
—
— PCFG2 PCFG1 PCFG0 ---- -000 ---- -000
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 implemented;
maintain this register clear.
DS30605C-page 30
2000 Microchip Technology Inc.
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