LSI MegaRAID Express 500 - Manual (Page 46)

MegaRAID Express 500 Hardware Guide 32
MegaRAID Express 500 Specifications
Parameter Specification
Card Size 5.875" x 4.2" (half length PCI)
Processor Intel i960RM™ 32-bit RISC processor @ 100 MHz
Bus Type PCI 2.1
PCI Controller Intel i960RM
Bus Data Transfer Rate Up to 132 MB/s
BIOS AMIBIOS MegaRAID BIOS
Cache Configuration 16, 32, 64, or 128 MB ECC through a 66MHz 72-
bit unbuffered 3.3V SDRAM.
Firmware 1 MB × 8 flash ROM
Nonvolatile RAM 32 KB × 8 for storing RAID configuration
Operating Voltage 5.00 V ± 0.25 V
SCSI Controller One SCSI controller for 160 M Ultra and Wide
support.
SCSI Data Transfer
Rate
Up to 160 MB/s
SCSI Bus LVD or single-ended
SCSI Termination Active
Termination Disable Automatic through cable and device detection
Devices per SCSI
Channel
Up to 15 wide or seven non-wide SCSI devices. Up
to 6 non-disk SCSI drives per MegaRAID Express
500 controller.
SCSI Device Types
Supported
Synchronous or Asynchronous. Disk and non-disk.
RAID Levels Supported 0, 1, 3, 5,10, 30, and 50
SCSI Connectors One 68-pin internal high-density connector for 16-
bit SCSI devices. One ultra-high density 68-pin
external connector for Ultra and Wide SCSI.
Serial Port 3-pin RS232C-compatible berg
PCI Bridge/CPU
MegaRAID Express 500 uses the Intel i960RM PCI bridge with an embedded 80960JX
RISC processor running at 100 MHz. The RM bridge handles data transfers between the
primary (host) PCI bus, the secondary PCI bus, cache memory, and the SCSI bus. The
DMA controller supports chaining and unaligned data transfers. The embedded 80960JX
CPU directs all controller functions, including command processing, SCSI bus transfers,
RAID processing, drive rebuilding, cache management, and error recovery.