EM3270 Manual

Tandem Terminal to IBM Host Translation
A-4 110332—Tandem EM3270 Manual
EM3270 Emulation Description
Tandem Terminal to IBM Host Translation
The translation of data from the Tandem terminal into a 3270-compatible data stream
consists of:
•
Translating the Tandem terminal function key into the appropriate AID byte.
•
Translating the Tandem terminal cursor address.
•
Translating each modified data field into an SBA, which is the attribute address plus
1 and is followed by the data in the field. The attribute address is omitted if in
unformatted mode.
Bits 4-5 - Display Type Partially supported. Normal display (coded 00 and 01) is shown
using the Tandem terminal dim video. Intensified display
(coded 10) is shown using the Tandem terminal normal video.
Nondisplay (coded 11) is shown using blank video. The
selector pen detectable feature is not supported.
Bit 6 - Must be Zero Ignored.
Bit 7 - Modified Data Tag Fully supported.
Table A-4. Attribute Byte Translation (IBM Host to Tandem Terminal) (page 2
of 2)
Attribute Bit EM3270 Emulator Action