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

Chapter 8 211
Intrinsics Reference
FDEVICECONTROL
9, 11 Set parity generation and checking.
These directives enable and disable parity generation
and checking between the DTC and the device. The
functions of parm1 values 9 and 11 are identical. It is
the same as FCONTROL (23, 24).
A buffer value of 0 disables parity, and all eight bits of
each character are passed through untouched. A buffer
value of 1 enables parity that is set when parm1 is 10
or 12, or when FCONTROL(36) is used. Both input and
output parity are the same.
If this call is issued against a device connected through
a PAD, DTC Telnet, Telnet/iX or VT connection, a CCE
condition code is returned but there is no impact on the
terminal.
10, 12 Set type of parity.
These directives enable or disable the kind of parity
used when parity checking is enabled. The functions of
parm1 values 10 and 12 are identical. If parity
checking is disabled, the setting of this directive is
ignored. It is the same as FCONTROL (36).
There are five possible settings for buffer:
0 indicates no parity checking (eighth bit
always set to 0)
1 indicates no parity checking (eighth bit
always set to 1)
3 indicates even parity
4 indicates no parity checking
5 indicates even parity with eight bit
data length
6 indicates odd parity with eight bit data
length
If this call is issued against a device connected through
a PAD, DTC Telnet, Telnet/iX or VT connection, a CCE
condition code is returned but there is no impact on the
terminal.
14 Set line deletion response.
This directive enables and disables the response to the
line deletion character when received from the
terminal. The response is !!!.
[CTRL]X is the default
line deletion character. A buffer value of 0 disables
transmission of !!!, and a value of 1 enables