Asynchronous Serial Communications Programmer's Reference Manual (32022-90052)

174 Chapter8

Intrinsics Reference

FCONTROL(14, 15)

Use FCONTROL(14) to disable the system break

function before your program enters block mode. Call

FCONTROL(15) to reenable system break when block

mode processing is completed.

If the

[Break] key is pressed while system break is

disabled no action is taken by any level of software.

System break has no effect on a device with no active

session.

Condition Codes

CCE Request granted.

CCG Not returned by this intrinsic.

CCL Request failed because the ﬁle number speciﬁed did not

belong to this process or the device is not a terminal.

Additional Discussion

See the MPE/iX Commands Reference Manual.