AMT Datasouth 41AY89AR777 - Manual (Page 170)

APPENDIX H - CONTINUED
ESC * n Select Single or Double Density 9-Pin Graphics
This command is used to select single or double density 9-pin graphics based on
the value of “n”.
If:
n = 0 Double-density 9-pin graphics is selected,
n = 1 Single-density 9-pin graphics is selected.
In this mode, two bytes are used to define each 9-dot bit pattern; however, only
the top bit of the second byte is used, as shown in Figure H.5.
PRINT
WIRE DECIMAL
NUMBER VALUE
S
i
8
MSB
M V FIRST
^
f BYTE
8
64
32
16 V SECOND
r BYTE
2
Figure H.5 9-Pin Graphics
H-20