Intel SC5300BD2 Product Specification - Page 55
SCSI Interface, External Memory Device, Hot Swap Power Controller, SCSI Drive Connectors
UPC - 735858171755
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Hard Disk Drive Bays Intel® Server Chassis SC5300 5U Kit TPS inserted, the power control waits a small amount of time for the drive to be fully seated, and then applies power with a controlled power ramp. • If the system power is on, the LVD SCSI backplane immediately powers off a drive slot when it detects that a drive has been removed. This prevents possible damage to the drive when it is partially removed and re-inserted while full power is available, and disruption of the entire SCSI array from possible sags in supply voltage and resultant current spikes. 5.1.2 SCSI Interface The GEM359 controller supports LVD SCSI operation through 8-bit asynchronous SCSI data transfers. 5.1.2.1 I2C Serial Bus Interface The GEM359 supports two independent I2C interface ports. This enables actual temperature value readings to be returned to the host. The Intelligent Platform Management Bus (IPMB) is supported through I2C port 1. 5.1.2.2 Temperature Sensor The SCSI HSBP provides a temperature sensor with an over-temperature detector. The host can query the backplane at any time to read the temperature. The host can program both the temperature alarm threshold and the temperature at which the alarm condition goes away. 5.1.2.3 Serial EEPROM The SCSI HSBP provides an Atmel* 24C02 or equivalent serial EEPROM for storing FRU information. The 24C02 EEPROM provides 2048 bits of serial electrically erasable and programmable read-only memory. 5.1.3 External Memory Device The SCSI HSBP contains a non-volatile 16K Top Boot Block, 4Mbit Flash memory device that stores the configuration data and operating firmware executed by the GEM359 controller's internal CPU. 5.1.4 Hot Swap Power Controller The SCSI HSBP provides a Texas Instrument* TPS2320 or equivalent, Dual Channel Hot Swap Power Controller with independent circuit breaker support. The controller uses external Nchannel MOSFETs as high-side switches for 5V and 12V and supports the following features: overcurrent protection (OCP), inrush-current control, and electrostatic discharge protection. The controller is housed in a 16-pin TSSOP package. 5.1.5 SCSI Drive Connectors The SCSI HSBP provides SCA2 connectors for hot swappable drives with support up to the Ultra-320 LVD transfer rate. The HSBP only supports LVD mode, and not SE or HVD mode. The HSBP provides one 68-pin SCSI connector to cable back to the host system. 54 Revision 1.31