PIC16F1503T-I 查看數據表（PDF） - Microchip Technology
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PIC16F1503T-I Datasheet PDF : 352 Pages
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PIC16(L)F1503
11.4 Register Definitions: PORTA
REGISTER 11-2: 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 11-3: TRISA: PORTA TRI-STATE REGISTER
U-0
—
bit 7
U-0
R/W-1/1
R/W-1/1
U-1
—
TRISA5
TRISA4
—(1)
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 bit
1 = PORTA pin configured as an input (tri-stated)
0 = PORTA pin configured as an output
Unimplemented: Read as ‘1’
TRISA<2:0>: PORTA Tri-State Control bit
1 = PORTA pin configured as an input (tri-stated)
0 = PORTA pin configured as an output
Note 1: Unimplemented, read as ‘1’.
DS40001607D-page 98
2011-2015 Microchip Technology Inc.
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