X25AM Management Programming Manual

Event Management
X25AM Management Programming Manual—528037-001
7-11
4: ZX25-EVT-DEV-ERROR
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:
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)
. 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
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
Bit Meaning (Autopoll) Meaning (Modem Control)
. 0 0 0
. 1 Channel underrun 0
. 2 Channel abort 0
. 3 Channel parity error 0
. 4 Modem loss 0
. 5 Autopoll terminated 0
. 6 Transmit underrun Data set ready interrupt
. 7 0 0