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8
HP 27130B
Suspend transmitter. The transmitter on the indicated port will be
suspended as if an X -OFF had been received. Either an X -ON (if
enabled) or a Restart Transmitter (5 above) can be used to resume
normal operation. This can be used to suspend output on receipt of
some external event (e.g., BREAK).
RTS AND WTC BLOCK DEFINITIONS
The Read Transaction Status (R TS) & Write Transaction Code (WTC) block definitions are:
byte 0
1
2
7
6
•
·
·
opcode
o
1
5
4
3
2
opcode
•
•
•
•
·
· · .
log channel
ID
number (LCN)
· · ·
I
RTS description
Nothing to do.
The LCN field is
not used.
•
·
•
Sw i t c h tot h e
transaction given
in the LCN field.
1
0
•
·
.
•
WTC description
Not used.
Resume the
transaction given
in the LCN field.
2
Terminate the data
Terminate the data
3
4
transfer for the
transaction given
in the LCN field.
Abort the trans-
action given in
the TID field.
Event sensed.
The event block as
defined below is
transfer for the
transaction given
in the LCN field.
Abort the t rans-
action given in
the TID field.
Acknowledgement to
the eve n t.
By tel is the
port ID of the port to be
returned to the
acknowledged.
host in place of
the log channel ID
number.
The MUX
card will return
up to 6 bytes for
the event block.
4-37
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