Microchip Technology DM183021 Data Sheet

Page of 392
 2010 Microchip Technology Inc.
 
DS39616D-page 125
PIC18F2331/2431/4331/4431
TABLE 11-9:
PORTE I/O SUMMARY
TABLE 11-10: SUMMARY OF REGISTERS ASSOCIATED WITH PORTE     
    
Pin
Function
TRIS
Setting
I/O
I/O
Type
Description
RE0/AN6
RE0
0
O
DIG
LATE<0> data output; not affected by analog input.
1
I
ST
PORTE<0> data input; disabled when analog input is enabled.
AN6
1
I
ANA
A/D Input Channel 6. Default input configuration on POR.
RE1/AN7
RE1
0
O
DIG
LATE<1> data output; not affected by analog input.
1
I
ST
PORTE<1> data input; disabled when analog input is enabled.
AN7
1
I
ANA
A/D Input Channel 7. Default input configuration on POR.
RE2/AN8
RE2
0
O
DIG
LATE<2> data output; not affected by analog input.
1
I
ST
PORTE<2> data input; disabled when analog input is enabled.
AN8
1
I
ANA
A/D Input Channel 8. Default input configuration on POR.
MCLR/V
PP
/RE3
(1)
MCLR
I
ST
External Master Clear input; enabled when MCLRE Configuration bit 
is set.
V
PP
I
ANA
High-Voltage Detection; used for ICSP™ mode entry detection. Always 
available, regardless of pin mode.
RE3
(2)
I
ST
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.
Name
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Reset Values 
on Page:
PORTE
RE3
(1)
RE2
RE1
RE0
LATE
LATE Data Output Register
TRISE
PORTE Data Direction Register
ANSEL0
ANS7
(2)
ANS6
(2)
ANS5
(2)
ANS4
ANS3
ANS2
ANS1
ANS0
ANSEL1
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.