Register
Number
COM0
DT90123
SEND / RECV end code
COM1
DT90124
SEND / RECV end code
COM2
DT90125
SEND / RECV end code
DT90126
Force I/O active unit No.
COM3
DT90127
SEND / RECV end code
COM4
DT90127
SEND / RECV end code
DT90128-
Unused
DT90139
Name
If an error occurs when executing SEND / RECV
instruction, the error code is saved.
Used in the system.
If an error occurs when executing SEND / RECV
instruction, the error code is saved.
26.7 Table of Special Data Registers
Description
R
W
○
×
○
×
○
×
○
×
○
×
○
×
×
×
26-85