Microchip Technology AC244055 Data Sheet
PIC16(L)F1938/9
DS40001574C-page 138
2011-2013 Microchip Technology Inc.
TABLE 12-11: SUMMARY OF REGISTERS ASSOCIATED WITH PORTD
(1)
REGISTER 12-16: LATD: PORTD DATA LATCH REGISTER
R/W-x/u
R/W-x/u
R/W-x/u
R/W-x/u
R/W-x/u
R/W-x/u
R/W-x/u
R/W-x/u
LATD7
LATD6
LATD5
LATD4
LATD3
LATD2
LATD1
LATD0
bit 7
bit 0
Legend:
R = Readable bit
R = Readable bit
W = Writable bit
U = Unimplemented bit, read as ‘0’
u = Bit is unchanged
x = Bit is unknown
-n/n = Value at POR and BOR/Value at all other Resets
‘1’ = Bit is set
‘0’ = Bit is cleared
bit 7-0
LATD<7:0>: PORTD Output Latch Value bits
(1,2)
Note 1:
Writes to PORTD are actually written to corresponding LATD register. Reads from PORTD register is
return of actual I/O pin values.
return of actual I/O pin values.
2:
PORTD implemented on PIC16(L)F1939 devices only.
REGISTER 12-17: ANSELD: PORTD ANALOG SELECT REGISTER
(2)
R/W-1/1
R/W-1/1
R/W-1/1
R/W-1/1
R/W-1/1
R/W-1/1
R/W-1/1
R/W-1/1
ANSD7
ANSD6
ANSD5
ANSD4
ANSD3
ANSD2
ANSD1
ANSD0
bit 7
bit 0
Legend:
R = Readable bit
R = Readable bit
W = Writable bit
U = Unimplemented bit, read as ‘0’
u = Bit is unchanged
x = Bit is unknown
-n/n = Value at POR and BOR/Value at all other Resets
‘1’ = Bit is set
‘0’ = Bit is cleared
bit 7-0
ANSD<7:0>: Analog Select between Analog or Digital Function on Pins RD<7:0>, respectively
0 = Digital I/O. Pin is assigned to port or digital special function.
1 = Analog input. Pin is assigned as analog input
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.
allow external control of the voltage on the pin.
2:
ANSELD register is not implemented on the PIC16(L)F1938. Read as ‘0’.
3:
PORTD implemented on PIC16(L)F1939 devices only.
Name
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Register on
Page
ANSELD
ANSD7
ANSD6
ANSD5
ANSD4
ANSD3
ANSD2
ANSD1
ANSD0
CCPxCON
PxM<1:0>
DCxB<1:0>
CCPxM<3:0>
CPSCON0
CPSON CPSRM
—
—
CPSRNG<1:0>
CPSOUT
T0XCS
CPSCON1
—
—
—
—
CPSCH<3:0>
LATD
LATD7
LATD6
LATD5
LATD4
LATD3
LATD2
LATD1
LATD0
LCDCON
LCDEN
SLPEN
WERR
—
CS<1:0>
LMUX<1:0>
LCDSE2
SE23
SE22
SE21
SE20
SE19
SE18
SE17
SE16
PORTD
RD7
RD6
RD5
RD4
RD3
RD2
RD1
RD0
TRISD
TRISD7
TRISD6
TRISD5
TRISD4
TRISD3
TRISD2
TRISD1
TRISD0
Legend:
x = unknown, u = unchanged, – = unimplemented locations read as ‘0’. Shaded cells are not used by PORTD.
Note 1:
These registers are not implemented on the PIC16(L)F1938 devices, read as ‘0’.