6 - 3
2) Second byte
Table 6-3 Second byte
Higher bits
Lower bits
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
0
1
*
ERR
TX
UNLK
RX
UNLK
OVER
HEAT
LOW
POWER
The bits have the following meanings.
Bit 7 : 0: This bit indicates the second byte.
Bit 6 : 1: This bit indicates the second byte.
Bit 5 : Not used
Bit 4 : Partner transmission error
Bit 3 : Alarm signal (TX UNLOCK)
Bit 2 : Alarm signal (RX UNLOCK)
Bit 1 : Alarm signal (OVER HEAT)
Bit 0 : Alarm signal (LOW POWER)
(0: No alarm signal, 1: Alarm signal)
3) Third byte (Memory channel data)
Table 6-4 Third byte
Higher bits
Lower bits
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
1
0
*
*
*
4
2
1
The bits have the following meanings.
Bit 7 : 1: This bit indicates the third byte.
Bit 6 : 0: This bit indicates the third byte.
Bit 5 : Not used
Bit 4 : Not used
Bit 3 : Not used
Bit 2 : Memory channel data (4)
Bit 1 : Memory channel data (2)
Bit 0 : Memory channel data (1)
Details of memory channels data are as shown in table6-5 "Memory channel data".
Table 6-5 Memory channel data
ch- number
1
2
3
4
5
6
7
8
Bit 2
0
0
0
0
1
1
1
1
Bit 1
0
0
1
1
0
0
1
1
Bit 0
0
1
0
1
0
1
0
1
