dsPICDEM™ 1.1 Plus Development Board User’s Guide
DS70099D-page 82
©
2006 Microchip Technology Inc.
B.7
COLUMN COMMANDS
The column commands treat the display like a 122-column, 4-row set of 8-pixel high,
1-pixel wide display elements. The Least Significant bit of the column data byte is
closest to the top of the display. The column rows are the same as the character rows
but the horizontal axis is addressable to the pixel.
B.7.1
ColPos Command
The ColPos command sets ColPos to (ColPosX,ColPosR).
B.7.2
WrtColNext Command
The WrtColNext command writes column data to the current ColPos and then
increments ColPos.
B.7.3
WrtColNextOR Command
The WrtColNextOR command ORs column data with existing data and writes the result
to the current ColPos, then increments ColPos.
B.7.4
WrtColNextAND Command
The WrtColNextAND command ANDs column data with existing data and writes the
result to the current ColPos, then increments ColPos.
B.7.5
WrtColNextXOR Command
The WrtColNextXOR command XORs column data with existing data and writes the
result to the current ColPos, then increments ColPos.
Field
Form
Value
Opcode
0xDB
ColPosX
0
X6
X5
X4
X3 X2 X1 X0
Column 0-121
ColPosR
0
0
0
0
0
0
R1
R0
Row 0-3
Field
Form
Value
Opcode
0xBC
Column Data
D7 D6
D5
D4
D3 D2 D1 D0
Data
Field
Form
Value
Opcode
0xBD
Column Data
D7 D6
D5
D4
D3 D2 D1 D0
Data
Field
Form
Value
Opcode
0xBE
Column Data
D7 D6
D5
D4
D3 D2 D1 D0
Data
Field
Form
Value
Opcode
0xBF
Column Data
D7 D6
D5
D4
D3 D2 D1 D0
Data
