pic16c62b-20i-ss Microchip Technology Inc., pic16c62b-20i-ss Datasheet - Page 20

• Manufacturer Part Number: pic16c62b-20i-ss
• Description: 28-pin 8-bit Cmos Microcontrollers
• Manufacturer: Microchip Technology Inc.

PIC16C62B/72A
TABLE 3-1
TABLE 3-2
DS35008B-page 20
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: The PIC16C62B does not implement the A/D module.
Address Name
05h
05h
85h
9Fh
Legend: x = unknown, u = unchanged, - = unimplemented locations read as ’0’. Shaded cells are not used by PORTA.
Note 1: The PIC16C62B does not implement the A/D module. Maintain this register clear.
PORTA
(for PIC16C72A only)
PORTA
(for PIC16C62B only)
TRISA
ADCON1
REF
PORTA FUNCTIONS
SUMMARY OF REGISTERS ASSOCIATED WITH PORTA
(1)
Bit#
bit0
bit1
bit2
bit3
bit4
bit5
Buffer
TTL
TTL
TTL
TTL
ST
TTL
Bit 7
—
—
—
—
Bit 6
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
Function
Input/output or slave select input for synchronous serial port or analog input
—
—
—
—
PORTA Data Direction Register
Bit 5
RA5
RA5
—
Preliminary
Bit 4
RA4
RA4
—
Bit 3
RA3
RA3
—
(1)
(1)
(1)
(1)
PCFG2 PCFG1
Bit 2
RA2
RA2
or V
REF
Bit 1
RA1
RA1
(1)
PCFG0
Bit 0
RA0
RA0
1999 Microchip Technology Inc.
--0x 0000
--xx xxxx
--11 1111
---- -000
Value on
POR,
BOR
other resets
Value on all
--0u 0000
--uu uuuu
--11 1111
---- -000
(1)