MPE/iX Intrinsics Reference Manual (32650-90905)

132 Chapter5
Command Definitions (FCONTROL - FLOCK)
FCONTROL
function.
• A call to RESETCONTROL when the program is ready to receive
another subsystem break.
2. A new subsystem break character can be defined through FCONTROL
itemnum =41 if the terminal is placed in transparent mode or through
FDEVICECONTROL, which allows a subsystem break character to be
defined without placing the device in the transparent mode.
3. At any time, FCONTROL can be called to disable the subsystem break.
Reset in break mode; reset after FCLOSE. (Default)
18/U16 Disable tape option
(Default)
Item is ignored.
19/U16 Enable tape option:
Item is ignored.
20/U16 Disable the terminal input timer:
Reset in break mode; reset after FCLOSE. (Default)
Item is ignored.
21/U16 Enable the terminal input timer:
Reset in break mode; reset after FCLOSE.
Item is ignored.
22/U16 Read the terminal input timer:
Item returns the measured time duration of the last read.
The result of the read duration timer is returned in hundredths of a
second, up to 655.35 seconds.
The operating system times each and every read, therefore, this call
should immediately follow the read of interest with no subsequent reads
between.
23/U16 Disable parity checking and generation:
Item has no meaning; enter a value of 0 to satisfy internal requirements.
If a call is issued against a terminal connected through PAD, CCE (2) is
returned, but the device control action does not take place.
Parity can be used for terminals opened programmatically and for those in
session mode. The default for these is to operate in 8-bit pass-through
mode (no parity).
If a terminal detects a parity error, it displays the PAD character.
If a parity error is detected by ASC software, the current read is completed
in error, and no read data is returned. The ASC software reports the error