6530 Programmer's Guide

Block Mode Operation
6530 Programmer’s Guide 3-91
If p1 = 1 (31h), all the Variable Field Definitions table values are
reinitialized to their defaults. For example, the sequence
Esc - 1 s
returns every value in the Variable Field Definitions table to its
default.
If p1 = 0, p2 indicates the beginning element number of the Variable
Field Definitions table to change. ASCII values can range from 1 (or
01) to 32.
If p1 = 0, p3 indicates the ending element number of the Variable
Field Definitions table to change. ASCII values can range from 1 (or
01) to 32.
If p1 = 0, p4 is a group of three ASCII characters that comprise the
video attribute, normal data attribute, and extended data attribute.
The format and content of these three bytes are identical to the
conventional Start Field Extended (ESC ]) command parameters in
protect submode. (See “Start Field Extended (Esc [ )” on page 3-38.)
In the following example:
Esc - 0 ; 1 ; 3 s 264644264644264644
the values of the first three lines of the Variable Field Definitions
table are changed as follows:
Delay One Second (Esc @)
The Esc @ sequence causes the 6530 to stop processing the input stream
for approximately one second. At the end of the delay, normal processing
continues.
Data Type Default Value New Value
video attribute 20 26
normal data 50 46
extended data 44 44