Intel SC5299BRP Technical Product Specification page 126

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Intel Entry Server Chassis SC5299-E TPS
4.3.2.1 SATA Enclosure Management Controller
The QLogic* GEM424 enclosure management controller for the SATA backplane monitors
various aspects of the storage enclosure. The chip provides out-of-band SAF-TE management
through the SATA Host I
specification by providing management data to a baseboard management controller through the
IPMB.
The GEM424 controller has general input and output pins (GPIOs) that allow for customization.
These GPIOs are used for hardware drive detection and driving FAULT and ACTIVITY LEDs.
The GEM424 controller comes in an 80-pin Thin Quad Flat Pack (TQFP) package and operates
from 3.3V and an input clock frequency of 20MHz.
4.3.2.2 SATA Interface
The GEM424 controller implements SAF-TE over the HBA I
supports the following SAF-TE Command Set:
Read Enclosure Configuration
Read Enclosure Status
Read Device Slot Status
Read Global Flags
Write Device Slot Status
Perform Slot Operation
4.3.2.3 I C Serial Bus Interface
2
The GEM424 controller supports two independent I
2
400Kbits. The I C core incorporates 8-bit FIFOs for data transfer buffering. The I
a National* LM75 or equivalent I
value readings to be returned to the host. The Intelligent Platform Management Bus (IPMB) is
supported through the I
The following figure provides a block diagram of I
SATA HSBP.
Revision 3.1
2
C interface. The GEM424 controller also supports the IPMI
2
C -based temperature sensor. This enables actual temperature
2
C port 0.
Intel order number D37594-005
Peripheral and Hard Drive Support
2
C interface. The GEM424 controller
2
C interface ports with bus speeds of up to
2
C bus connection implemented on the 6HDD
2
C bus supports
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