11.4 PORTE Registers
RE3 is input only, and also functions as MCLR. The
MCLR feature can be disabled via a configuration fuse.
RE3 also supplies the programming voltage. The TRIS bit
for RE3 (TRISE3) always reads ‘1’.
PIC16LF1902/3
11.4.1
PORTE FUNCTIONS AND OUTPUT
PRIORITIES
No output priorities, RE3 is an input only pin.
REGISTER 11-13: PORTE: PORTE REGISTER
U-0
—
bit 7
U-0
U-0
U-0
R-x/u
U-0
—
—
—
RE3
—
U-0
U-0
—
—
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
bit 7-4
bit 3
bit 2-0
Unimplemented: Read as ‘0’
RE3: PORTE Input Pin bit
1 = Port pin is > VIH
0 = Port pin is < VIL
Unimplemented: Read as ‘0’
U = Unimplemented bit, read as ‘0’
-n/n = Value at POR and BOR/Value at all other Resets
REGISTER 11-14: TRISE: PORTE TRI-STATE REGISTER
U-0
—
bit 7
U-0
U-0
U-0
U-1(1)
U-0
—
—
—
—
—
U-0
U-0
—
—
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
bit 7-4
bit 3
bit 2-0
Unimplemented: Read as ‘0’
Unimplemented: Read as ‘1’
Unimplemented: Read as ‘0’
Note 1: Unimplemented, read as ‘1’.
U = Unimplemented bit, read as ‘0’
-n/n = Value at POR and BOR/Value at all other Resets
2011 Microchip Technology Inc.
Preliminary
DS41455A-page 103