PIC16F1938 Datasheet, PDF (141/452 Pages) Microchip Technology – 28/40/44-Pin Flash-Based, 8-Bit CMOS Microcontrollers

PIC16(L)F1938/9
REGISTER 12-14: PORTD: PORTD REGISTER⁽¹⁾
R/W-x/u
RD7
bit 7
R/W-x/u
RD6
R/W-x/u
RD5
R/W-x/u
RD4
R/W-x/u
RD3
R/W-x/u
RD2
R/W-x/u
RD1
R/W-x/u
RD0
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 7-0
RD<7:0>: PORTD General Purpose I/O Pin bits
1 = Port pin is > VIH
0 = Port pin is < VIL
Note 1: PORTD is not implemented on PIC16(L)F1938 devices, read as ‘0’.
REGISTER 12-15: TRISD: PORTD TRI-STATE REGISTER⁽¹⁾
R/W-1/1
TRISD7
bit 7
R/W-1/1
TRISD6
R/W-1/1
TRISD5
R/W-1/1
TRISD4
R/W-1/1
TRISD3
R/W-1/1
TRISD2
R/W-1/1
TRISD1
R/W-1/1
TRISD0
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 7-0
TRISD<7:0>: PORTD Tri-State Control bits
1 = PORTD pin configured as an input (tri-stated)
0 = PORTD pin configured as an output
Note 1: TRISD is not implemented on PIC16(L)F1938 devices, read as ‘0’.
2: PORTD implemented on PIC16(L)F1939 devices only.
REGISTER 12-16: LATD: PORTD DATA LATCH REGISTER
R/W-x/u
LATD7
bit 7
R/W-x/u
LATD6
R/W-x/u
LATD5
R/W-x/u
LATD4
R/W-x/u
LATD3
R/W-x/u
LATD2
R/W-x/u
LATD1
R/W-x/u
LATD0
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 7-0
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.
2: PORTD implemented on PIC16(L)F1939 devices only.
 2011 Microchip Technology Inc.
Preliminary
DS41574A-page 141