PIC12F1822 MICROCHIP [Microchip Technology], PIC12F1822 Datasheet - Page 121

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

REGISTER 12-2:
REGISTER 12-3:
 2010 Microchip Technology Inc.
bit 7
Legend:
R = Readable bit
u = Bit is unchanged
‘1’ = Bit is set
bit 7-6
bit 5-0
Note 1:
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
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.
Unimplemented: Read as ‘0
RA<5:0>: PORTA I/O Value bits
1 = Port pin is > V
0 = Port pin is < V
Unimplemented: Read as ‘0
TRISA<5:4>: PORTA Tri-State Control bits
1 = PORTA pin configured as an input (tri-stated)
0 = PORTA pin configured as an output
TRISA3: RA3 Port Tri-State Control bit
This bit is always ‘1’ as RA3 is an input only
TRISA<2:0>: PORTA Tri-State Control bits
1 = PORTA pin configured as an input (tri-stated)
0 = PORTA pin configured as an output
U-0
U-0
—
—
PORTA: PORTA REGISTER
TRISA: PORTA TRI-STATE 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-1/1
R/W-x/x
TRISA5
IH
IL
RA5
PIC12F/LF1822/16F/LF1823
R/W-1/1
R/W-x/x
TRISA4
(1)
RA4
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
TRISA3
R-1/1
R-x/x
RA3
R/W-1/1
R/W-x/x
TRISA2
RA2
R/W-x/x
R/W-1/1
TRISA1
RA1
DS41413A-page 121
R/W-1/1
R/W-x/x
TRISA0
RA0
bit 0
bit 0