Datasheet

 2012 Microchip Technology Inc. Preliminary DS41639A-page 133
PIC16(L)F1454/5/9
REGISTER 12-4: LATA: PORTA DATA LATCH REGISTER
U-0 U-0 R/W-x/u R/W-x/u U-0 U-0 U-0 U-0
— —LATA5LATA4— — — —
bit 7 bit 0
Legend:
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 7-6 Unimplemented: Read as ‘0’
bit 5-4 LATA<5:4>: RA<5:4> Output Latch Value bits
(1)
bit 3-0 Unimplemented: Read as ‘0’
Note 1: Writes to PORTA are actually written to corresponding LATA register. Reads from PORTA register is return
of actual I/O pin values.
REGISTER 12-5: ANSELA: PORTA ANALOG SELECT REGISTER
(2)
U-0 U-0 U-0 R/W-1/1 U-0 U-0 U-0 U-0
— — — ANSA4 — — — —
bit 7 bit 0
Legend:
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 7-5 Unimplemented: Read as ‘0’
bit 4 ANSA4: Analog Select between Analog or Digital Function on pins RA4, respectively
1 = Analog input. Pin is assigned as analog input
(1)
. Digital input buffer disabled.
0 = Digital I/O. Pin is assigned to port or digital special function.
bit 3-0 Unimplemented: Read as ‘0’
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.
2: PIC16(L)F1455/9 only.