PIC16F753 Datasheet, PDF (48/238 Pages) Microchip Technology – 14/16-Pin, Flash-Based 8-Bit CMOS Microcontrollers

PIC16F753/HV753
REGISTER 5-5: ANSELA: PORTA ANALOG SELECT REGISTER
U-0
—
bit 7
U-0
U-0
R/W-1
U-0
R/W-1
—
—
ANSA4
—
ANSA2
R/W-1
ANSA1
R/W-1
ANSA0
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 7-5
bit 4
bit 3
bit 2-0
Unimplemented: Read as ‘0’
ANSA4: Analog Select Between Analog or Digital Function on Pin RA4 bit
1 = Analog input. Pin is assigned as analog input⁽¹⁾.
0 = Digital I/O. Pin is assigned to port or special function.
Unimplemented: Read as ‘0’
ANSA<2:0> Analog Select Between Analog or Digital Function on Pin RA<2:0> bits
1 = Analog input. Pin is assigned as analog input.⁽¹⁾
0 = Digital I/O. Pin is assigned to port or special function.
Note 1: Setting a pin to an analog input automatically disables the digital input circuitry, weak pull-ups, and interrupt-on-
change if available. The corresponding TRIS bit must be set to Input mode in order to allow external control of
the voltage on the pin.
REGISTER 5-6: WPUA: WEAK PULL-UP PORTA REGISTER
U-0
—
bit 7
U-0
R/W-1
R/W-1
R/W-1
R/W-1
—
WPUA5
WPUA4
WPUA3
WPUA2
R/W-1
WPUA1
R/W-1
WPUA0
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
bit 5-0
Unimplemented: Read as ‘0’
WPUA<5:0>: Weak Pull-up Control bits^(1,2,3)
1 = Pull-up enabled
0 = Pull-up disabled
Note 1:
2:
3:
Global RAPU must be enabled for individual pull-ups to be enabled.
The weak pull-up device is automatically disabled if the pin is in Output mode (TRISA = 0).
The RA3 pull-up is enabled when configured as MCLR in the Configuration Word, otherwise it is disabled
as an input and reads as ‘0’.
DS40001709A-page 48
Preliminary
 2013 Microchip Technology Inc.