IBM 3151 User Manual page 129

Reference Information (SYSTEM ATTACH)
SeURead Control 4 Commands/Response
Differences
Bit 5 of pa is assigned as the Send Key parameter. Bit 4 of pa is reserved.
' /
Function
Sets or reads the Send parameters of the
3151.
Format
• Set Control 4 command
ESC#9pa op
• Read Control 4 command
ESC#7
• Read Control 4 response
ESC#7paLTA
5-20
User's Guide for the Cartridge to Emulate IBM and DEC Terminals
f "
'~)