Intel SC5400LX User Manual
Intel® Server Chassis SC5400 5U Kit TPS
Hot Swap Hard Disk Drive Bays
Revision: 1.0
67
6.2.1.4 I
2
C Bus Address and Loading
Table 53. I
2
C Bus Addressing
TMP75
*
I
2
C Address
AT24C64* I
2
C Address
VSC410* I
2
C port2
90h
A0h
C0h or C2h
Table 54. 6HDD I
2
C Bus Loading
Device
Power
Well
ViH
ViL
VoL
Ileak
CAP
I
2
C
Address
I
2
C Bus Name
TMP75
*
P3V3 0.7VCC 0.3VCC 0.4V/3mA
1uA 3PF 90h
SAS_I2C0_DAT,
SAS_I2C0_CLK
SAS_I2C0_CLK
VSC7161
*
P3V3
2.0V
0.8V
0.4V/4mA
10uA
SAS_I2C0_DAT,
SAS_I2C0_CLK
SAS_I2C0_CLK
AT24C64*
P3V3 0.7VCC 0.3VCC 0.4V/2.1mA 3uA 8PF A0h
SAS_I2C0_DAT,
SAS_I2C0_CLK
SAS_I2C0_CLK
VSC7161*
P3V3
2.0V
0.8V
0.4V/4mA
10uA
C0h or
C2h
C2h
SAS_I2C1_DAT,
SAS_I2C1_CLK
SAS_I2C1_CLK
MMBF170(S)* P3V3
SAS_I2C1_DAT,
SAS_I2C1_CLK
SAS_I2C1_CLK
MMBF170(D)* P5V
SMB_IPMB_5V_CLK,
SMB_IPMB_5V_DAT
SMB_IPMB_5V_DAT
J4D2
P5V
0.7VCC
0.3VCC
0.4V/3mA
10uA
4/8P
SMB_IPMB_5V_CLK,
SMB_IPMB_5V_DAT
SMB_IPMB_5V_DAT
6.2.1.5 Temperature
Sensor
The 4HDD and 6HDD active SAS/SATA HSBP provides a TI TMP75* or equivalent temperature
sensor. The host can query the TMP75* at any time to read the temperature.
sensor. The host can query the TMP75* at any time to read the temperature.
The temperature sensor has an I
2
C address of 0x90h on Port 0 of the VSC7161* SAS
Expander.
6.2.1.6 Serial
EEPROM
The 4HDD and 6HDD active SAS/SATA HSBP provides an Atmel AT24C64* or equivalent
serial EEPROM for storing the FRU information. The AT24C64* EEPROM provides 64K bits of
serial electrically erasable and programmable read-only memory.
serial EEPROM for storing the FRU information. The AT24C64* EEPROM provides 64K bits of
serial electrically erasable and programmable read-only memory.
The serial EEPROM has an I
2
C address of 0xA0h and resides on Port 0 of the VSC7161* SAS
Expander.