Table 04h register map, Table 05h register map, Table 06h register map – Rainbow Electronics DS1874 User Manual
Page 33: Ds1874 sfp+ controller with digital ldd interface
Table 04h Register Map
DS1874
SFP+ Controller with Digital LDD Interface
______________________________________________________________________________________
33
TABLE 04h (MODULATION LUT)
WORD 0
WORD 1
WORD 2
WORD 3
ROW
(hex)
ROW
NAME
BYTE 0/8
BYTE 1/9
BYTE 2/A
BYTE 3/B
BYTE 4/C
BYTE 5/D
BYTE 6/E
BYTE 7/F
80–C7
<8>
LUT4
MOD MOD MOD MOD MOD MOD MOD MOD
ACCESS
CODE
<0>
<1>
<2>
<3>
<4>
<5>
<6>
<7>
<8>
<9>
<10>
<11>
Read
Access
All All All PW2 All N/A PW1 PW2 N/A PW2 All
Write
Access
See each
bit/byte
separately
PW2 N/A
All and
DS1874
hardware
PW2 +
mode
bit
All All PW1 PW2 PW2 N/A PW1
Table 05h Register Map
Table 05h is empty by default. It can be configured to contain the alarm and warning-enable bytes from Table 01h,
Registers F8h–FFh with the MASK bit enabled (Table 02h, Register 89h). In this case Table 01h is empty.
TABLE 05h
WORD 0
WORD 1
WORD 2
WORD 3
ROW
(hex)
ROW
NAME
BYTE 0/8
BYTE 1/9
BYTE 2/A
BYTE 3/B
BYTE 4/C
BYTE 5/D
BYTE 6/E
BYTE 7/F
80–F7 EMPTY EMPTY EMPTY EMPTY EMPTY EMPTY EMPTY EMPTY EMPTY
F8
<8>
ALARM
ENABLE
ALARM
EN
3
ALARM
EN
2
ALARM
EN
1
ALARM
EN
0
WARN EN
3
WARN EN
2
RESERVED RESERVED
Table 06h Register Map
The access codes represent the factory default values of PW_ENA and PW_ENB (Table 02h, Registers C0h–C1h).
TABLE 06h (APC LUT)
WORD 0
WORD 1
WORD 2
WORD 3
ROW
(hex)
ROW
NAME
BYTE 0/8
BYTE 1/9
BYTE 2/A
BYTE 3/B
BYTE 4/C
BYTE 5/D
BYTE 6/E
BYTE 7/F
80–9F
<8>
LUT6
APC REF
APC REF
APC REF
APC REF
APC REF
APC REF
APC REF
APC REF
A0
<8>
LUT6
APC REF
APC REF
APC REF
APC REF
RESERVED RESERVED RESERVED RESERVED