Expand Management Programming Manual
EVENT MANAGEMENT
4: ZEXP-EVT-DEV-ERR
If a modem loss was detected or, for a read unit, if a vertical
redundancy check error was reported, bits 7 through 15 of the
status word have the following meanings:
Bit Meaning (Write Unit) Meaning (Read Unit)
----- -------------------- -------------------
.
7
Byte count termination Byte count termination
.
8
Data set ready Data set ready
.
9
Modem loss sensed Modem loss sensed
.
10
Data carrier detected Data carrier detected
.
11
Clear to send Clear to send
.
12
Data set ready interrupt Data set ready interrupt
.
13
Control carrier enable Control carrier enable
.
14
Request to send Request to send
.
15
Data terminal ready Data terminal ready
If no modem loss was detected or, for a read unit, no vertical
redundancy check error was reported, bits 7 through 15 of the
status word have the following meanings:
Bit Meaning (Write Unit) Meaning (Read Unit)
----- -------------------- -------------------
.
7
Byte count termination Byte count termination
.
8
ETB/ETX sensed
.
9
SOH/STX sensed
.
10
.
11
State count
.
12
State count
.
13
.
14
.
15
For the bit-synchronous controller, the bits of the status word
that are equal to 1 can be interpreted as follows:
Bit Meaning (Write Unit) Meaning (Read Unit)
----- -------------------- -------------------
.
0
Power on 0
.
1
Channel underrun Channel underrun
.
2
Channel abort Channel abort
.
3
Channel parity error 0
.
4
Modem loss Modem loss
.
5
0 Read byte overrun
.
6
Transmit underrun Receiver overrun
.
7
No encryption No encryption
8-12