IBM 3164 ASCII Manual page 114

24. Disable CA Transmission Command
ESC
$ ;
(outbound)
When this command is received, the display station does not send the Set Character Attribute
response in the inbound data stream except the Read All command.
Note: After the display station is powered on, the CA transmission is disabled.
25. Reset Character Attribute Command
ESC
$
4 (outbound or from the keyboard)
When this command is received, the latest rendition specified from the keyboard becomes
ineffective.
26. Set Single-Height Single-Width (SHSW) Command
ESC space 4 (outbound)
This command is used to change the line attribute of the current active line to the single-height
single-width attribute.
27. Set Single-Height Double-Width (SHDW) Command/Response
ESC! 4 (outbound or inbound)
This command is used to change the line attribute of the current active line to the single-height
double-width attribute. If the current active line is a single-width line, half of the character string
disappears at the right-hand side of the line and is destroyed.
28. Set Double-Height Single-Width (DHSW) Command/Response
ESC" 4 (outbound or inbound)
This command is used to change the line attribute of the current active line to the double-height
single-width attribute. If the current active line is a single-height single-width line, all characters
on the next lower line are destroyed.
29. Set Double-Height Double-Width (DHDW) Command/Response
ESC
#
4 (outbound or inbound)
This command is used to change the line attribute of the current active line to a double-height
double-width attribute. If the current active line is a single-width line, all characters on the next
lower line and half of the character string at the right-hand side of the line is destroyed.
30. Print Viewport Command
ESC W (outbound)
When this command is received, data in the viewport of the active outbound page is transferred to
the auxiliary port. The buffer address (SA) and the cursor address (CA) do not move.
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