PIC12F1822T-I/SL View Datasheet(PDF) - Microchip Technology
Part Name
Description
Manufacturer
PIC12F1822T-I/SL Datasheet PDF : 398 Pages
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PIC12F/LF1822/16F/LF1823
REGISTER 12-2: PORTA: PORTA REGISTER
U-0
—
bit 7
U-0
R/W-x/x
R/W-x/x
—
RA5
RA4
R-x/x
RA3
R/W-x/x
RA2
R/W-x/x
RA1
R/W-x/x
RA0
bit 0
Legend:
R = Readable bit
u = Bit is unchanged
‘1’ = Bit is set
W = Writable bit
x = Bit is unknown
‘0’ = Bit is cleared
U = Unimplemented bit, read as ‘0’
-n/n = Value at POR and BOR/Value at all other Resets
bit 7-6
bit 5-0
Unimplemented: Read as ‘0
RA<5:0>: PORTA I/O Value bits(1)
1 = Port pin is > VIH
0 = Port pin is < VIL
Note 1: Writes to PORTA are actually written to corresponding LATA register. Reads from PORTA register is return
of actual I/O pin values.
REGISTER 12-3: TRISA: PORTA TRI-STATE REGISTER
U-0
—
bit 7
U-0
R/W-1/1
R/W-1/1
R-1/1
—
TRISA5
TRISA4
TRISA3
R/W-1/1
TRISA2
R/W-1/1
TRISA1
R/W-1/1
TRISA0
bit 0
Legend:
R = Readable bit
u = Bit is unchanged
‘1’ = Bit is set
W = Writable bit
x = Bit is unknown
‘0’ = Bit is cleared
U = Unimplemented bit, read as ‘0’
-n/n = Value at POR and BOR/Value at all other Resets
bit 7-6
bit 5-4
bit 3
bit 2-0
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
2010 Microchip Technology Inc.
Preliminary
DS41413A-page 121
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