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dsPICDEM? 1.1 Plus Development Board User’s Guide
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).
Field
Opcode
Form
Value
0xDB
ColPosX
ColPosR
0
0
X6
0
X5
0
X4
0
X3
0
X2
0
X1
R1
X0
R0
Column 0-121
Row 0-3
B.7.2
WrtColNext Command
The WrtColNext command writes column data to the current ColPos and then
increments ColPos.
Field
Opcode
Form
Value
0xBC
Column Data
D7
D6
D5
D4
D3
D2
D1
D0
Data
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.
Field
Opcode
Form
Value
0xBD
Column Data
D7
D6
D5
D4
D3
D2
D1
D0
Data
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.
Field
Opcode
Form
Value
0xBE
Column Data
D7
D6
D5
D4
D3
D2
D1
D0
Data
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
Opcode
Form
0xBF
Value
Column Data
D7
D6
D5
D4
D3
D2
D1
D0
Data
DS70099D-page 82
? 2006 Microchip Technology Inc.
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