Intel® Integrated RAID Module SROMBSASMR (AXXROMBSASMR) Technical Product Specification Hardware
2.2 Module Layout AF003118
SAS/SATA
Connectors
Board-to-Board
50-pin Connector
SES
Connector
Battery
Connector
Heatsink
LSI 1078
SAS ROC
Controller
LSI
Figure 2. Intel® Integrated RAID Module SROMBSASMR Physical Layout
2.3 Major Components 2.3.1 LSI* 1078 SAS ROC
The LSI* 1078 SAS ROC is an integrated SAS and I/O controller with an embedded Power PC*
core running at 533 MHz. For information, see http://www.lsi.com/. The 1078 SAS ROC
provides this functionality:
PCI Express* interface (x8), 2.5 Gbps
Local 72-bit DDR2 SDRAM interface with ECC checking
Dual independent internal DMA controllers maximize parallel data movement operations
between system memory and any peripheral/block on the processor local bus (PLB),
including local external devices such as Flash ROM, NVRAM, etc.
Two messaging units. Only one can be enabled per power-on cycle:
- Fusion MPT message unit
- Proprietary / test message unit
Two I2C interfaces for memory detection and PCI Express* SMBus connectivity. Serial
boot-strap ROM is also connected here.
Integrated dual UART for MegaRAID* diagnostic use only.
Eight channels of 3 Gbps full duplex SAS / SATA / Tunneled SATA
Two banks of SGPIO signals to accompany the two sets of x4 SAS/SATA ports
PCI Express* interface supports x8, x4, and x1 lane configurations
Revision 1.2
Intel order number E59029-003
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