Datasheet
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Intel® IOP348 I/O Processor Intel® IOP341/342 I/O Processor Intel® IOC340 I/O Controller Intel® IOP333 I/O Processor
Intel XScale® Technology
Application Cores
1 1/2 0 1
Core Speed
667/800/1200 MHz 800/1200 MHz 800/1200 MHz 500/667/800 MHz
RAID 5/6 ofoad solu-
tion Chip Count
1 2 2 2
SAS/SATA II Ports
8 0 8 0
Package Size
37.5 mm x 37.5 mm FCBGA5 37.5 mm x 37.5 mm FCBGA5 37.5 mm x 37.5 mm FCBGA5 37.5 mm x 37.5 mm FCBGA3
Integrated Host Bus
Interfaces
PCI-Express*, PCI-X* or
both concurrently
Concurrent PCI-Express
and PCI-X
PCI-Express or PCI-X PCI-Express to PCI-X Bridge
Memory Controller
Multi-ported DDR2
400/533 MHz with ECC
Multi-ported DDR2 400/533 MHz
with ECC
n/a
Dual-ported DDR 333
MHz/DDR2 400 MHz
Internal Memory
n/a 1 MB SRAM n/a n/a
Max Memory
4 GB 4 GB n/a
2 GB (DDR 333)
1 GB (DDR2 400)
Internal Bus
128-bit, 400 MHz (up to 6.4
GB/s) Dual Bus. Byte parity
on data bus
128-bit, 400 MHz (up to 6.4 GB/s)
Dual Bus. Byte parity on data bus
128-bit, 400 MHz (up to 6.4
GB/s) Dual Bus. Byte parity
on data bus
333 MHz (up to 2.7 GB/s)
Bus
Local Bus Width
16 Bits (66 MHz) 16 Bits (66 MHz) 16 Bits (66 MHz) 8/16 Bits (66 MHz)
DMA Buffer Size
4096 Bytes 4096 Bytes 4096 Bytes 1024 Bytes
ATU Buffer Size
4096 Bytes 4096 Bytes 4096 Bytes 4096 Bytes
I
2
C Bus Interface Unit
3 3 0 2 Serial Units
Hardware-based Appli-
cation Accelerators
XOR, P+Q, CRC32C XOR, P+Q, CRC32C n/a XOR, P+Q, CRC32C
UART
2 (1 Available for the IOP) 2 0 (2) 4-Pin (16550)
GPIO
16 GPIO
2 SGPIO units capable of up
to 8 devices on the target end
16 GPIO
8 GPIO
2 SGPIO units capable of up
to 8 devices on the target end
8 GPIO
External Interrupt Pins
16 + 1 HPI 16 + 1 HPI n/a 16 + 1 HPI
Intel® I/O Processor Comparison
Conclusion
The Intel® IOC340 I/O Controller delivers the next generation of storage power efciency, performance,
exibility, and protection. The open, exible architecture of the IOC340 facilitates a multitude of potential
product designs to create customizable, enterprise-class storage solutions. As part of a exible family of
products, the IOC340 enables businesses of all sizes to benet from the next evolution of storage technology.