Technical Product Specification

Intel® Server Chassis SC5650 TPS Peripheral and Hard Drive Support
Revision 1.2
Intel order number E39531-004
111
The VSC410* controller has many general purpose input and output pins (GPIOs) that allow
customization. Some of these GPIOs are used for hard disk drive detection and driving hard
disk drive fault LEDs.
The VSC410* controller comes in a 64-pin Low Profile Quad Flat Pack (LQFP) package,
operates from 3.3V and has an input clock frequency of 4MHz.
4.3.3.1 I
2
C Serial Bus Interface
The VSC410* controller supports four independent I
2
C interfaces with bus speed of up to 400
Kbits. The I
2
C bus 0 supports an AT24C64* EEPROM or equivalent I
2
C -based EEPROM used
as FRU. The I
2
C bus 1 supports a TI TMP75* or equivalent I
2
C -based temperature sensor. This
enables actual temperature value readings to be returned to the host. The Intelligent Platform
Management Bus (IPMB) is supported through the I
2
C port 2. The SCSI Enclosure Service
(SES) interface is supported through the I
2
C port 3.
The following figure provides a block diagram of I
2
C bus connection implemented on the 6HDD
passive SAS/SATA HSBP.
Figure 29. Passive SAS/SATA HSBP I
2
C Bus Connection Diagram