PIC18F2331/2431/4331/4431
TABLE 11-9: PORTE I/O SUMMARY
TRIS
Setting
I/O
Pin
RE0/AN6
Function
I/O
Description
Type
RE0
0
1
1
0
1
1
0
1
1
—
O
I
DIG
ST
LATE<0> data output; not affected by analog input.
PORTE<0> data input; disabled when analog input is enabled.
A/D Input Channel 6. Default input configuration on POR.
LATE<1> data output; not affected by analog input.
AN6
RE1
I
ANA
DIG
ST
RE1/AN7
O
I
PORTE<1> data input; disabled when analog input is enabled.
A/D Input Channel 7. Default input configuration on POR.
LATE<2> data output; not affected by analog input.
AN7
RE2
I
ANA
DIG
ST
RE2/AN8
O
I
PORTE<2> data input; disabled when analog input is enabled.
A/D Input Channel 8. Default input configuration on POR.
AN8
I
ANA
ST
(1)
MCLR/VPP/RE3
MCLR
I
External Master Clear input; enabled when MCLRE Configuration bit
is set.
VPP
—
I
I
ANA
ST
High-Voltage Detection; used for ICSP™ mode entry detection. Always
available, regardless of pin mode.
(2)
RE3
—
PORTE<3> data input; enabled when MCLRE Configuration bit is
clear.
Legend:
DIG = Digital level output; TTL = TTL input buffer; ST = Schmitt Trigger input buffer; ANA = Analog level input/output;
x= Don’t care (TRIS bit does not affect port direction or is overridden for this option).
Note 1: All PORTE pins are only implemented on 40/44-pin devices.
2: RE3 does not have a corresponding TRIS bit to control data direction.
TABLE 11-10: SUMMARY OF REGISTERS ASSOCIATED WITH PORTE
Reset Values
on Page:
Name
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
PORTE
—
—
—
—
—
—
—
—
—
—
—
RE3(1)
—
RE2
RE1
RE0
57
57
57
56
56
LATE
LATE Data Output Register
PORTE Data Direction Register
TRISE
—
—
ANSEL0
ANSEL1
ANS7(2) ANS6(2) ANS5(2)
ANS4
—
ANS3
—
ANS2
—
ANS1
—
ANS0
ANS8(2)
—
—
—
Legend: — = unimplemented, read as ‘0’. Shaded cells are not used by PORTE.
Note 1: Implemented only when Master Clear functionality is disabled (CONFIG3H<7> = 0). It is available for
PIC18F4331/4431 devices only.
2: ANS5 through ANS8 are available only on PIC18F4331/4431 devices.
2010 Microchip Technology Inc.
DS39616D-page 125
MICROCHIP [ MICROCHIP ]
