Serial Matrix Vertical Formatting - Printronix P3000 Series User's Reference Manual

The Slew Relative configuration and the status of data bits 1 through 4 determine the number of lines
slewed as described in Table 5–6. (Note that the state of data bit 5 is the difference between line slew-
ing and using the interface lines as DVFU channel codes.) As long as the DVFU is selected, this type of
vertical paper motion will occur, regardless of whether the DVFU memory is loaded or not.
If the Double High for One Line attribute is active, n + 1 lines are slewed rather than n lines.
ASCII
Hex Dec
10 16
11 17
12 18
13 19
14 20
15 21
16 22
17 23
18 24
19 25
1A 26
1B 27
1C 28
1D 29
1E 30
1F 31
X = Undefined, 0 or 1
*treated as CR = CR; refer to the Carriage Return control code on page 6–16.

Serial Matrix Vertical Formatting

In Serial Matrix protocol, vertical formatting is always enabled. Forms control is accomplished by a
set of programmed vertical tabs. Various lines of the form are assigned vertical tabs which are then
accessed by control code for rapid paper advancement to the tab position. Two codes are used for con-
trolling vertical tabs: ESC B for single channel tab setting and VT to execute a vertical tab. These codes
and their parameters are described in the Programming chapter. The VFU Loaded indicator on the con-
trol panel will not glow when vertical tabs are loaded for forms control.
5–10
Table 5–6. P–Series DVFU Line Slewing
Code PI 8 7
1 X X
DLE
1 X X
DC1
1 X X
DC2
1 X X
DC3
1 X X
DC4
1 X X
NAK
1 X X
SYN
1 X X
ETB
1 X X
CAN
1 X X
EM
SUB 1 X X
1 X X
ESC
FS 1 X X
1 X X
GS
1 X 0
RS
US 1 X 0
Data Bits
6 5 4 3 2
X 1 0 0 0
X 1 0 0 0
X 1 0 0 1
X 1 0 0 1
X 1 0 1 0
X 1 0
1 0
X 1 0 1 1
X 1 0 1 1
X 1 1 0 0
X 1 1 0 0
X 1 1 0 1
X
1 1 0 1
X 1 1 1 0
X 1 1 1 0
0 1 1 1 1
0 1 1 1 1
1 = High
Lines Slewed
1
0 0 = CR*
1 1
0 2
1 3
4
0
5
1
0 6
1 7
0 8
1 9
0 10
11
1
0 12
1 13
0 14
15
1
0 = Low
Vertical Format Units