PIC12F1822 MICROCHIP [Microchip Technology], PIC12F1822 Datasheet - Page 122

• Manufacturer Part Number: PIC12F1822
• Description: 8/14-Pin Flash Microcontrollers with nanoWatt XLP Technology
• Manufacturer: MICROCHIP [Microchip Technology]

PIC12F/LF1822/16F/LF1823
REGISTER 12-4:
REGISTER 12-5:
DS41413A-page 122
bit 7
Legend:
R = Readable bit
u = Bit is unchanged
‘1’ = Bit is set
bit 7-6
bit 5-4
bit 3
bit 2-0
Note 1:
bit 7
Legend:
R = Readable bit
u = Bit is unchanged
‘1’ = Bit is set
bit 7-5
bit 4
bit 3
bit 2-0
Note 1:
U-0
U-0
—
—
Writes to PORTA are actually written to corresponding LATA register. Reads from PORTA register is return
of actual I/O pin values.
When setting a pin to an analog input, the corresponding TRIS bit must be set to Input mode in order to
allow external control of the voltage on the pin.
Unimplemented: Read as ‘0’
ANSA4: Analog Select between Analog or Digital Function on pins RA4, respectively
0 = Digital I/O. Pin is assigned to port or digital special function.
1 = Analog input. Pin is assigned as analog input
Unimplemented: Read as ‘0’
ANSA<2:0>: Analog Select between Analog or Digital Function on pins RA<2:0>, respectively
0 = Digital I/O. Pin is assigned to port or digital special function.
1 = Analog input. Pin is assigned as analog input
Unimplemented: Read as ‘0
LATA<5:4>: RA<5:4> Output Latch Value bits
Unimplemented: Read as ‘0
LATA<2:0>: RA<2:0> Output Latch Value bits
U-0
U-0
—
—
LATA: PORTA DATA LATCH REGISTER
ANSELA: PORTA ANALOG SELECT REGISTER
W = Writable bit
x = Bit is unknown
‘0’ = Bit is cleared
W = Writable bit
x = Bit is unknown
‘0’ = Bit is cleared
R/W-x/u
LATA5
U-0
—
R/W-1/1
R/W-x/u
ANSA4
LATA4
Preliminary
U = Unimplemented bit, read as ‘0’
-n/n = Value at POR and BOR/Value at all other Resets
U = Unimplemented bit, read as ‘0’
-n/n = Value at POR and BOR/Value at all other Resets
(1)
(1)
U-0
U-0
—
—
(1)
(1)
. Digital input buffer disabled.
. Digital input buffer disabled.
R/W-x/u
R/W-1/1
ANSA2
LATA2
 2010 Microchip Technology Inc.
R/W-1/1
R/W-x/u
ANSA1
LATA1
R/W-1/1
ANSA0
R/W-x/u
LATA0
bit 0
bit 0