PIC18F6390 Datasheet, PDF (132/412 Pages) Microchip Technology – 64/80-Pin Flash Microcontrollers with LCD Driver and nanoWatt Technology

PIC18F6390/6490/8390/8490
TABLE 9-18: PORTJ FUNCTIONS
Pin Name
Function
TRIS
Setting
I/O
Buffer
Description
RJ0/SEG32
RJ0
0
O
DIG LATJ<0> data output; disabled when LCD segment enabled.
1
I
ST PORTJ<0> data input.
SEG32
x
O
ANA Segment 32 analog output for LCD.
RJ1/SEG33
RJ1
0
O
DIG LATJ<1> data output; disabled when LCD segment enabled.
1
I
ST PORTJ<1> data input.
SEG33
x
O
ANA Segment 33 analog output for LCD.
RJ2/SEG34
RJ2
0
O
DIG LATJ<2> data output; disabled when LCD segment enabled.
1
I
ST PORTJ<2> data input.
SEG34
x
O
ANA Segment 34 analog output for LCD.
RJ3/SEG35
RJ3
0
O
DIG LATJ<3> data output; disabled when LCD segment enabled.
1
I
ST PORTJ<3> data input.
SEG35
x
O
ANA Segment 35 analog output for LCD.
RJ4/SEG39
RJ4
0
O
DIG LATJ<4> data output; disabled when LCD segment enabled.
1
I
ST PORTJ<4> data input.
SEG39
x
O
ANA Segment 39 analog output for LCD.
RJ5/SEG38
RJ5
0
O
DIG LATJ<5> data output; disabled when LCD segment enabled.
1
I
ST PORTJ<5> data input.
SEG38
x
O
ANA Segment 38 analog output for LCD.
RJ6/SEG37
RJ6
0
O
DIG LATJ<6> data output; disabled when LCD segment enabled.
1
I
ST PORTJ<6> data input.
SEG37
x
O
ANA Segment 37 analog output for LCD.
RJ7/SEG36
RJ7
0
O
DIG LATJ<7> data output; disabled when LCD segment enabled.
1
I
ST PORTJ<7> data input.
SEG36
x
O
ANA Segment 36 analog output for LCD.
Legend: PWR = Power Supply, O = Output, I = Input, ANA = Analog Signal, DIG = Digital Output, ST = Schmitt Buffer Input,
TTL = TTL Buffer Input, x = Don’t care (TRIS bit does not affect port direction or is overridden for this option).
TABLE 9-19: SUMMARY OF REGISTERS ASSOCIATED WITH PORTJ
Name
Bit 7 Bit 6
Bit 5
Bit 4
Bit 3 Bit 2
Bit 1
PORTJ
LATJ
TRISJ
LCDSE4
Read PORTJ pin/Write PORTJ Data Latch
LATJ Data Output Register
Data Direction Control Register for PORTJ
SE39 SE38 SE37 SE36
SE35
SE34
SE33
Bit 0
SE32
Reset Values
on Page
62
62
62
64
DS39629B-page 130
Preliminary
 2004 Microchip Technology Inc.