Microchip Technology MCP1631RD-MCC2 Data Sheet

Page of 338
PIC16F882/883/884/886/887
DS41291G-page 50
 2006-2012 Microchip Technology Inc.
 
REGISTER 3-4:
ANSELH: ANALOG SELECT HIGH REGISTER
U-0
U-0
R/W-1
R/W-1
R/W-1
R/W-1
R/W-1
R/W-1
ANS13
ANS12
ANS11
ANS10
ANS9
ANS8
bit 7
bit 0
Legend:
R = Readable bit
W = Writable bit
U = Unimplemented bit, read as ‘0’
-n = Value at POR
‘1’ = Bit is set
‘0’ = Bit is cleared
x = Bit is unknown
bit 7-6
Unimplemented: Read as ‘0’
bit 5-0
ANS<13:8>: Analog Select bits
Analog select between analog or digital function on pins AN<13:8>, respectively.
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 3-5:
PORTB: PORTB REGISTER
R/W-x
R/W-x
R/W-x
R/W-x
R/W-x
R/W-x
R/W-x
R/W-x
RB7
RB6
RB5
RB4
RB3
RB2
RB1
RB0
bit 7
bit 0
Legend:
R = Readable bit
W = Writable bit
U = Unimplemented bit, read as ‘0’
-n = Value at POR
‘1’ = Bit is set
‘0’ = Bit is cleared
x = Bit is unknown
bit 7-0
RB<7:0>: PORTB I/O Pin bit
1 = Port pin is > V
IH
0 = Port pin is < V
IL
REGISTER 3-6:
TRISB: PORTB TRI-STATE REGISTER
R/W-1
R/W-1
R/W-1
R/W-1
R/W-1
R/W-1
R/W-1
R/W-1
TRISB7
TRISB6
TRISB5
TRISB4
TRISB3
TRISB2
TRISB1
TRISB0
bit 7
bit 0
Legend:
R = Readable bit
W = Writable bit
U = Unimplemented bit, read as ‘0’
-n = Value at POR
‘1’ = Bit is set
‘0’ = Bit is cleared
x = Bit is unknown
bit 7-0
TRISB<7:0>: PORTB Tri-State Control bit
1 = PORTB pin configured as an input (tri-stated)
0 = PORTB pin configured as an output