PIC16F721-ESS 查看數據表（PDF） - Microchip Technology
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PIC16F721-ESS Datasheet PDF : 254 Pages
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PIC16(L)F720/721
REGISTER 6-12: TRISC: PORTC TRI-STATE REGISTER
R/W-1
TRISC7
bit 7
R/W-1
TRISC6
R/W-1
TRISC5
R/W-1
TRISC4
R/W-1
TRISC3
R/W-1
TRISC2
R/W-1
TRISC1
R/W-1
TRISC0
bit 0
Legend:
R = Readable bit
-n = Value at POR
W = Writable bit
‘1’ = Bit is set
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
x = Bit is unknown
bit 7-0
TRISC<7:0>: PORTC Tri-State Control bits
1 = PORTC pin configured as an input (tri-stated)
0 = PORTC pin configured as an output
REGISTER 6-13: ANSELC: ANALOG SELECT REGISTER FOR PORTC
R/W-1
R/W-1
U-0
U-0
R/W-1
R/W-1
ANSC7
ANSC6
—
—
ANSC3
ANSC2
bit 7
R/W-1
ANSC1
R/W-1
ANSC0
bit 0
Legend:
R = Readable bit
-n = Value at POR
W = Writable bit
‘1’ = Bit is set
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
x = Bit is unknown
bit 7-6
ANSC<7:6>: Analog Select between Analog or Digital Function on Pins RB<7:6>, respectively
0 = Digital I/O. Pin is assigned to port or digital special function.
1 = Analog input. Pin is assigned as analog input(1). Digital input buffer disabled.
bit 5-4
Unimplemented: Read as ‘0’
bit 3-0
ANSC<3:0>: Analog Select between Analog or Digital Function on Pins RC<3:0>, respectively
0 = Digital I/O. Pin is assigned to port or digital special function.
1 = Analog input. Pin is assigned as analog input(1). Digital input buffer disabled.
Note 1: Setting a pin to an analog input automatically disables the digital input circuitry. Weak pull-ups, if available,
are unaffected. The corresponding TRIS bit must be set to Input mode by the user in order to allow external
control of the voltage on the pin.
2010-2013 Microchip Technology Inc.
DS41430D-page 61
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