1000BASE-T1 SFP MODULE
User Manual
13
3.3.2
I2C map register
Memory Map (read only registers):
Data Bytes
Byte
Number
Comment
0x03
0
Identifier SFP
0x04
1
Ext. Identifier
0x80
2
Connector
0x00, 0x00, 0x00, 0x00
3-6
Transceiver high
0x00, 0x00, 0x00, 0x00
7-10
Transceiver low
0x00
11
Encoding
0x01
12
Bitrate Nominal in 100 MBit
0x00
13
Reserved
0x00
14
Link Length Fiber
0x00
15
Link Length Fiber
0x00
16
Link Length Fiber
0x00
17
Link Length Fiber
0x0A
18
Link Length Copper in meter
0x00
19
Reserved
'T','e','c','h','n','i','c','a',' ','E','n','g','.',
' ',' ',' '
20-35
Vendor Name
0x00
36
Reserved
0x00, 0x00, 0x00
37-39
Vendor ID
'1','0','0','B','A','S','E','-','T','1',' ',' ',' ',
' ',' ',' '
40-55
PartNumber
'1','.','1', 0x00
56-59
Revision Number 1.1
0x00, 0x00, 0x00
60-62
Reserved
0xBC
63
Check Code for Field 0-62
0x00, 0x00
64-65
Options
0x00
66
Bitrate max
0x00
67
Bitrate min
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
68-83
Serial Number String
0x00, 0x00, 0x00, 0x00
84-87
Date Code high
0x00, 0x00, 0x00, 0x00
88-91
Date Code low
0x00, 0x00, 0x00
92-94
Reserved
0x42
95
Check Code Extended for Field 64-94
Table 3-1: Memory map
3.3.3
I2C Device addressing and operation
3.3.3.1
I2C Current address read
The current read operation only requires the device address read word to be sent.
When the acknowledge is received from the SFP module, the current address data
word is serially clocked out.
