6530 Programmer's Guide

Conversational Mode Operation
6530 Programmer’s Guide 2-23
Set Color Configuration (Esc - t)
Once the host has read the color palette register configuration, it may
determine the configuration must be changed. Changing the configuration
requires an escape sequence of the following format: an escape, hyphen, 3
parameters separated by semicolons, lowercase t, and the color data
information.
Esc - p1 ; p2 ; p3 t data
1B 2D p1 3B p2 3b p3 74 data (hex values)
where:
p1 sets (0 - hex 30) or resets (1 - hex 31) the color palette. If you are
setting the color palette, use the values defined in data to the range
applied by p2 through p3. If you are resetting the color palette, use
the values set by the terminal at initialization. If reset, the second and
third parameters may be omitted; they are ignored if sent.
p2 is the lower range of palette registers. Values are determined by
the configuration (0-15 for EGA or VGA), a maximum of 2 bytes in
ASCII decimal readable format. For example, register 9 would be
hex 39; register 14 would be hex 31/hex 34.
p3 is the upper range of palette registers. Values are determined by
the configuration (0-15 for EGA or VGA), a maximum of 2 bytes in
ASCII decimal readable format. As in p2, register 9 would be hex
39; register 14 would be hex 31/hex 34.
data are the valid register values defined by PC documentation for
the color requirements for EGA or VGA and other values defined by
terminal documentation. These values are 2 bytes each in ASCII hex
readable format. For example, a register value of 5E would be
represented by hex 35, hex 45; and a register value of 8 would be
represented by a hex 30, hex 38.
All data values are stored as ASCII hex values. Parameter values are
stored as ASCII decimal values.