PIC18C242 MICROCHIP [Microchip Technology], PIC18C242 Datasheet - Page 79

• Manufacturer Part Number: PIC18C242
• Description: High-Performance Microcontrollers with 10-Bit A/D
• Manufacturer: MICROCHIP [Microchip Technology]

TABLE 8-1:
TABLE 8-2:
Name
PORTA
LATA
TRISA
ADCON1
Legend: x = unknown, u = unchanged, - = unimplemented locations read as ’0’. Shaded cells are not used by PORTA.
Name
RA0/AN0
RA1/AN1
RA2/AN2/V
RA3/AN3/V
RA4/T0CKI
RA5/SS/AN4/LVDIN
OSC2/CLKO/RA6
Legend: TTL = TTL input, ST = Schmitt Trigger input
7/99 Microchip Technology Inc.
REF
REF
ADFM
Bit 7
—
—
—
-
+
PORTA FUNCTIONS
SUMMARY OF REGISTERS ASSOCIATED WITH PORTA
Latch A Data Output Register
PORTA Data Direction Register
ADCS2
Bit 6
RA6
Bit#
bit0
bit1
bit2
bit3
bit4
bit5
bit6
Bit 5
RA5
—
Buffer
TTL
TTL
TTL
TTL
ST
TTL
Bit 4
RA4
—
Function
Input/output or analog input
Input/output or analog input
Input/output or analog input or V
Input/output or analog input or V
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, or low voltage detect input
OSC2 or clock output or I/O pin
PCFG3
Bit 3
RA3
Preliminary
PCFG2
Bit 2
RA2
PCFG1
Bit 1
RA1
REF
REF
-
+
PCFG0
Bit 0
RA0
PIC18CXX2
--0x 0000
--xx xxxx
--11 1111
--0- 0000
Value on
POR,
BOR
DS39026B-page 79
Value on all
--0u 0000
--uu uuuu
--11 1111
--0- 0000
resets
other