Using the AMCC 3ware® I2C Multiplexer with a Supermicro® Backplane
6
AMCC 3ware I
2
C MUX Documentation
Appendix: Jumper and Cable Pin Settings
Jumper Settings for Supermicro 826TQ
Jumper Settings for Supermicro 836TQ
Note
:
The following jumper setting information is provided as a reference for your convenience. For complete and current information about the
appropriate
I
2
C
settings for your backplane, be sure to consult the documentation from Supermicro.
Table 1: Reset Chip Settings
These jumpers control the AMI 9072 and AMI 9071 chips
Jumper
Jumper Settings
Note
JP35
Open: No Reset (Default)
Closed: Reset
This is a 2-pin jumper block.
Jumper should be removed.
JP50
Open: No Reset (Default)
Closed: Reset
This is a 2-pin jumper block.
Jumper should be removed.
Table 2: I
2
C Setting (Default)
These jumpers control the I2C and SGPIO settings for the 826TQ
Jumper
JumperSetting
Note
JP65
2-3
Backplane ID SDIN #1
JP67
2-3
Backplane ID SDIN #2
JP 74
2-3
Backplane ID SDIN #3
JP83
Closed
I2C Reset #1
JP84
2-3
Controller ID #1
JP85
1-2:ID#0
Backplane ID #1
JP86
Closed
I2C Reset #2
JP87
Open
Reset SDOUT #1
JP88
Open
Reset SDOUT #2
JP89
Closed
Reset #3
JP90
2-3
Controller ID #3
JP91
1-2:ID#0
Backplane ID #3
JP93
Open
Reset SDOUT #3
JP101
2-3
Controller ID #2
JP102
2-3:ID#1
Backplane ID #2
Table 3: Reset Chip Settings
These jumpers control the AMI 9072 chip
Jumper
Jumper Settings
Note
JP35
Open: No Reset (Default)
Closed: Reset
This is a 2-pin jumper block.
Jumper should be removed.
JP50
Open: No Reset (Default)
Closed: Reset
This is a 2-pin jumper block.
Jumper should be removed.
Table 4: I2C Setting (Default)
These jumpers control the I2C and SGPIO settings for the 836TQ
Jumper
Jumper Settings
Note
JP65
2-3
Backplane ID SDIN #1
JP67
2-3
Backplane ID SDIN #2
JP 74
2-3
Backplane ID SDIN #3
JP83
Closed
I2C Reset #1
JP84
2-3
Controller ID #1
JP85
1-2:ID#0
Backplane ID #1
JP86
Closed
I2C Reset #2
JP87
Open
Reset SDOUT #1
JP88
Open
Reset SDOUT #2
JP89
Closed
Reset #3
JP90
2-3
Controller ID #3
JP91
1-2:ID#0
Backplane ID #3
JP93
Open
Reset SDOUT #3
JP101
2-3
Controller ID #2
JP102
2-3:ID#1
Backplane ID #2
JP103
2-3
Controller ID #4
JP104
2-3:ID #1
Backplane ID #4
