PIC16LF1904 Datasheet, PDF (104/288 Pages) Microchip Technology – 28/40/44-Pin Flash-Based, 8-Bit CMOS Microcontrollers with LCD Driver and nanoWatt XLP Technology

PIC16LF1904/6/7
REGISTER 11-4: ANSELA: PORTA ANALOG SELECT REGISTER
U-0
—
bit 7
U-0
R/W-1/1
U-0
R/W-1/1
R/W-1/1
—
ANSA5
—
ANSA3
ANSA2
R/W-1/1
ANSA1
R/W-1/1
ANSA0
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
bit 4
bit 3-0
Unimplemented: Read as ‘0’
ANSA5: Analog Select between Analog or Digital Function on pins RA5, 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.
Unimplemented: Read as ‘0’
ANSA<3:0>: Analog Select between Analog or Digital Function on pins RA<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: When setting a pin to an analog input, the corresponding TRIS bit must be set to Input mode in order to
allow external control of the voltage on the pin.
TABLE 11-3: SUMMARY OF REGISTERS ASSOCIATED WITH PORTA
Name
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Register
on Page
ANSELA
—
—
ANSA5
—
ANSA3
ANSA2
ANSA1 ANSA0
104
LATA
LATA7
LATA6
LATA5
LATA4
LATA3
LATA2
LATA1
LATA0
103
OPTION_REG WPUEN INTEDG TMR0CS TMR0SE
PSA
PS<2:0>
141
PORTA
RA7
RA6
RA5
RA4
RA3
RA2
RA1
RA0
103
TRISA
TRISA7 TRISA6 TRISA5 TRISA4 TRISA3 TRISA2 TRISA1 TRISA0
103
Legend: x = unknown, u = unchanged, – = unimplemented locations read as ‘0’. Shaded cells are not used by PORTA.
TABLE 11-4: SUMMARY OF CONFIGURATION WORD WITH PORTA
Name Bits Bit -/7
Bit -/6
Bit 13/5
Bit 12/4
Bit 11/3
Bit 10/2
Bit 9/1
Bit 8/0
CONFIG1
Legend:
13:8
—
—
—
—
CLKOUTEN
BOREN<1:0>
—
7:0
CP
MCLRE PWRTE
WDTE<1:0>
—
FOSC<1:0>
— = unimplemented location, read as ‘0’. Shaded cells are not used by PORTA.
Register
on Page
44
DS41569A-page 104
Preliminary
 2011 Microchip Technology Inc.