Technical Product Specification
Hot-swap Hard Disk Drive Bays Intel® Server Chassis SC5600
Revision 1.1
Intel order number E39532-004
66
Table 54. 6HDD I
2
C Bus Loading
Device Power
Well
V
IH
V
IL
V
OL
I
leak
CAP
I
2
C
Address
I
2
C Bus Name
TMP75* P3V3 0.7 VCC 0.3 VCC 0.4 V/3 mA 1 uA 3 PF 90h SAS_I2C0_DAT,
SAS_I2C0_CLK
VSC7161* P3V3 2.0 V 0.8 V 0.4 V/4 mA 10 uA N/A N/A SAS_I2C0_DAT,
SAS_I2C0_CLK
AT24C64* P3V3 0.7 VCC 0.3 VCC 0.4 V/2.1 mA 3 uA 8 PF A0h SAS_I2C0_DAT,
SAS_I2C0_CLK
VSC7161* P3V3 2.0 V 0.8 V 0.4 V/4 mA 10 uA N/A C0h or
C2h
SAS_I2C1_DAT,
SAS_I2C1_CLK
MMBF170(S)* P3V3 N/A N/A N/A N/A N/A N/A SAS_I2C1_DAT,
SAS_I2C1_CLK
MMBF170(D)* P5V N/A N/A N/A N/A N/A N/A SMB_IPMB_5V_CLK,
SMB_IPMB_5V_DAT
J4D2 P5V 0.7 VCC 0.3 VCC 0.4 V/3 mA 10 uA 4/8 P N/A SMB_IPMB_5V_CLK,
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.
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 64 K 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.
6.2.2 General Purpose Input/Output (GPIO)
The Vitesse VSC7161* SAS Expander supports GPIO pins that are customizable. The following
table lists the GPIO pins with their assigned functions.
Table 55. VSC7161* SAS Expander GPIO Assignment
VSC7161*
PIN Name
I/O Type
Power
Well
Programming
Description
System Function Connection
P0_0 O 3.3 V HDD0 Fault LED control LED_DRV0_FLT_N Pull up 4.7 K to 3.3 V
P0_1 O 3.3 V HDD1 Fault LED control LED_DRV1_FLT_N Pull up 4.7 K to 3.3 V
P0_2 O 3.3 V HDD2 Fault LED control LED_DRV2_FLT_N Pull up 4.7 K to 3.3 V
P0_3 O 3.3 V HDD3 Fault LED control LED_DRV3_FLT_N Pull up 4.7 K to 3.3 V
P0_4 O 3.3 V HDD4 Fault LED control LED_DRV4_FLT_N Pull up 4.7 K to 3.3 V
P0_5 O 3.3 V HDD5 Fault LED control LED_DRV5_FLT_N Pull up 4.7 K to 3.3 V