Intel® 80314 Companion Chip

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Intel® 80314 Companion Chip

Integrated PCI-X Bridge, Memory and Ethernet MACs Deliver Enhanced Performance

Block Diagram | Features and Benefits | Processor Comparison | Highlights

Intel® 80314 Companion Chip

The Intel 80314 introduces a powerful combination of technical advancements. The 64-bit true switch fabric network (SFN) allows multiple concurrent transactions. The SFN offers scalable frequency, 4-deep transaction queues (256 B or 1 KB) with burst sizes up to 1kB supported. Store and forward to the SFN and immediate drain from the SFN are supported. The integrated bridge (PCI/PCI-X) can configure devices on either bus, with each side capable of operating at different frequencies, 33 MHz to 133 MHz, and in either mode, PCI or PCI-X. The 80314 has 4 address spaces with translation man- aged via highly configurable sets of registers. It contains a 32-bit peripheral bus interface (PBI) (programmable up to 133 MHz) that is great for embedded applications requiring a connection to non-PCI peripheral components such as ASICs, flash memory, PLDs, or DSPs.

The dual-ported SDRAM memory controller unit (MCU) is vastly improved over previous IOP generations with core-to-memory performance greater than 5 times faster! The interface runs at 200 MHz. It offers two-port (64-bit data, 36-bit address) concurrent access to memory with programmable arbitration for each port. It has support for up to 4 physical (8 logical) banks and has up to 32-page interleaving. The MCU has optional ECC and supports up to 12 GB (3 DIMMs) DDR SDRAM.

Related information

Intel® 80200 Processor ›

Intel® IOP315 Chipset ›

Intel® Storage Products ›

Intel® I/O Processors ›

Intel® PCI Bridges ›

Features and benefits

The 80314 integrates a 4-channel DMA controller with support for unaligned transfers using both scatter-gather and direct modes. Data can be transferred to or from any SFN port. The DMA engines also support offloading of RAID5 XOR and iSCSI CRC32C operations.The 80314 features (2) 10/100/1000 Mbps Ethernet MACs that fully support standards IEEE 802.3, 802.3u, 802.3x, 802.3z, and 802.3ac. Both full- and half-duplex modes are supported at 10/100 Mbps. Full duplex is supported at 1 Gbps.

The 80314 features an option of integrated 1 MB very low-latency SRAM that has either direct core or SFN access. The SRAM BAR has priority for 80200 Bus Interface unit address claiming. The SRAM is application-independent, so it can be used for a variety of applications.

The 80314 also integrates a Multi-Processor Interrupt Controller (MPIC) with 24 interrupt inputs (16 external, 8 internal), 4 dedicated outputs, 16 priorities, 4 global 32-bit timers, 4 doorbell registers, and 4 general-purpose mailbox registers. Additional interfaces include I2C, 2 UART ports, and a JTAG interface. This integration helps reduce chip count, saves board space and simplifies designs.

High-performance Companion Chip for the Intel® 80200 Processor
The Intel® 80314 companion chip for the Intel® 80200 processor - the two-chip solution is the Intel® IOP315 - provides a rich peripheral set designed for storage and network applications. The Intel 80314 can support either one or two Intel 80200 processors. The Intel 80314 uses an internal switch fabric and supports concurrent transactions from any interface to any other interface. For fast memory transactions, the Intel 80200 processor interface has a dedicated bus to the DDR SDRAM memory controller that allows multiple concurrent outstanding transactions.

The Intel 80314 is especially well suited for high-performance storage applications such as network storage target devices (SAN, iSCSI, NAS) and intelligent network adapter cards (iSCSI, IPv4, IPv6, IPSec). The integrated PCI-X bridge, dual-ported ECC memory, low-latency 1 MB SRAM, high-bandwidth switch fabric and CRC32C and XOR engines make it an ideal choice for these applications. In addition, the Intel 80314 is an excellent solution for embedded and networking applications with its integrated dual-10/100/1000 Mbps MACs and flexible endian support.

Product information

Block diagram ›

I/O processor comparison ›

Product highlights ›

Features

Benefits

Intel® 80200 Interface

	100 MHz Request Bus
	4-Entry Request Buffer
	2.5V I/O generation, 3.3V tolerant (from Intel 80200)
	Support for single or dual Intel 80200 processors
	ECC-based bus integrity protection

High-performance Intel XScale® technology that scales

Dual PCI/PCI-X Interfaces

	Integrated PCI-X bridge
	25-133 MHz operation
	4 DMA units with chaining support
	Support to configure the device from remote PCI host
	CPCI hot-sway support
	4 concurrent split transactions
	Configurable arbitration logic

PCI-X to PCI-X bridge integration lowers Bill of Material (BOM) cost and helps reduce board space
Provides for increased system concurrency

Optimized Memory Controller

	Dual-ported MCU
	64- and 72-bit memory
	12 GB support, 3 DIMMs

Dramatically increases core to memory performance

Optional 1 MB of Low-Latency SRAM

Low-latency memory option helps reduce bottlenecks and improve performance

Communications

	2 GbE MACs
	133 MHz, 32-bit local bus with 4-chip selects
	I²C
	UARTs
	8 GPIO pins

Integration reduces board space, lowers BOM, and improves performance

Application Accelerator Units in DMA

	RAID5 XOR
	iSCSI CRC32C

Storage-specific integration in hardware improves performance and helps reduce CPU overhead

Intel® I/O processor comparison

	Intel® IOP315 I/O Processor Chipset	Intel® IOP310 I/O Processor Chipset	Intel® IOP321 I/O Processor Chipset	Intel® IOP331 I/O Processor Chipset
Intel XScale® Core	External – can support one or two Intel® 80200s	External – can support one Intel® 80200	Integrated	Integrated
Core Speed	400 MHz, 600 MHz, 733 MHz	400 MHz, 600 MHz, 733 MHz	400 MHz, 600 MHz	500 MHz, 667 MHz, 800 MHz
Chip Count	2-Chip Solution (Intel 80200 & Intel® 80314)	2-Chip Solution (Intel 80200 & Intel® 80312)	1-Chip Solution (w/o Bridge)	1-Chip Solution (w/ Bridge)
Package Size	40 mm x 40 mm and 23 mm x 23 mm	42.5 mm x 42.5 mm and 23 mm x 23 mm	35 mm x 35 mm	37.5 mm x 37.5 mm
Integrated Bridge	133 MHz, 64-bit PCI-X Bridge	66 MHz, 64-bit PCI - PCI Bridge	133 MHz, 64-bit PCI-X Interface	133 MHz, 64-bit PCI-X Bridge
Memory Controller	Dual-ported 200 MHz DDR	100 MHz SDRAM	200 MHz (1.6 GB/s) Bus	Dual-ported DDR 333 MHz/DDRII 400 MHz
Max Memory	12 GB	512 MB	1 GB	2 GB (DDR); 1 GB (DDR II)
Internal Bus Frequency	133 MHz Switching Fabric	100 MHz (800 MB/s) Bus	200 MHz Bus	266 MHz (2.1 GB/s) Bus
Integrated Memory	1 MB low-latency SRAM	None	None	None
Local Bus Width	32 Bits (up to 133 MHz)	8 Bits (asynchronous bus)	32 Bits (up to 100 MHz)	8/16 Bits (up to 66 MHz)
DMA Buffer Size	4 x 256 Bytes	256 Bytes	1024 Bytes	1024 Bytes
ATU Buffer Size	4 x 1024 Bytes	512 Bytes	4096 Bytes	4096 Bytes
Application Accelerator w/ XOR capability	Yes	Yes	Yes	Yes
I²C Bus Interface Unit	2 Serial Units	1 Serial Unit	2 Serial Units	2 Serial Units
Hardware-based CRC32C off-load	Yes	No	No	Yes
Integrated Ethernet MAC	(2) 10/100/1000 Mbps	None	None	None
Timers	4 - 32-bit	None	2 - 32-bit	2 - 32-bit
UART	2 - 9-Pin (16550)	No	SPI	2 - 4-Pin (16550)
GPIO	8 Pins	8 Pins	8 Pins	8 Pins
External Interrupt Pins	16	4	5	17

Product highlights

	Intel XScale® core support (one or two 80200 processors)
	ECC-protected, dual-ported 200 MHz memory controller with support for 3 DIMMs (up to 12 GB), 4 physical (8 logical) banks, 32-page interleaving
	(2) 64-bit-capable PCI/PCI-X interfaces with bridging, arbitration and cPCI hot-swap support
	Switch fabric network (SFN) architecture allowing concurrent DMA, CPU, PCI-X, Gigabit Ethernet and Local Bus accesses
	(2) Gigabit Ethernet MACs, half-/full-duplex support at 10/100 Mb and full-duplex 1 Gb; GMII management interface
	1 MB low-latency parity-protected on-chip SRAM with direct core or SFN access
	Central 4-channel DMA engine with iSCSI CRC32C and RAID5 XOR (up to 16 sources) off-load engines
	Flexible endian support
	32-bit, up to 133 MHz Peripheral Bus Interface (PBI) with 4-chip selects
	Multi-processor vectoring Interrupt Controller
	(2) 16550-compatible UARTs with full 9-wire interfaces
	(8) GPIO pins
	(2) industry-standards-based I2C interfaces
	1025 HSBGA (40 mm x 40 mm)