V380SDC Просмотр технического описания (PDF) - QuickLogic Corporation

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V380SDC

High Performance SDRAM Controller for 32-bit and 64-bit Embedded Processors

QuickLogic Corporation 

About the V380SDC

The V380SDC High Performance SDRAM Controller provides all aspects of SDRAM control for high performance

embedded systems. The V380SDC enables system designers to replace many lower integration support components

with a single, high-integration device. This saves design time, board space, and manufacturing cost.

The V380SDC from V3 Semiconductor provides the necessary (Enhanced) SDRAM access protocol and bus timing

resources to work with the latest (E)SDRAM devices. The processor interface on the V380SDC implements the bus

protocol of many popular RISC CPUs (AM29030/40, PowerPC 401 Gx, IDT 79RC32364, i960 Cx/Hx/Jx/Rx/Vx,

M68040, 68K/ColdFire, PowerPC 750/60x). The V380SDC is also fully compatible with the EPC family of PCI

bridges available from V3 Semiconductor.

The V380SDC supports a total SDRAM memory subsystem size of up to 2 Gbytes. Standard memory devices from

16 Mbit to 256 Mbit are supported; 8-, 16-, 32-bit and 64-bit accesses are allowed. Four single-bank or two dual-

bank industry standard 168-pin PC SDRAM DIMM(s) or 144-pin SO-DIMM(s) with Serial Presence Detect (SPD)

are also supported.

The V380SDC provides an 8-bit bus watch timer to detect and recover from accesses to unpopulated memory

regions. Two on-chip, general purpose, 32-bit timers can be individually configured as a pulse width modulator or

they may be used in other modes such as retriggerable or one-shot.

The V380SDC is packaged in a low-cost 100-pin EIJA Plastic Quad Flat Pack (PQFP), and is available in 75 MHz

speed grade.

This document contains the product codes, pinout, package mechanical information, DC characteristics, and AC

characteristics for the V380SDC. Detailed functional information is contained in the User’s Manual.

Figure 1: Example Application

Note:

i960Cx/Hx/Jx/Rx/Vx,

PowerPC 401Gx,

V3 Semiconductor retains

IDT 79RC32364,

the rights to change the

documentation, the

specifications, or device

functionality at any time

M68040/ColdFire/68K,

PowerPC 750, or

Am29030/40

Processor

V380SDC

SDRAM

DIMM(s)

Flash

without notice. Contact V3

and verify that you have the

latest copy of all documents

Local Bus

before finalizing a design.

V3

Local-to-PCI

Bridge

PCI Bus

2

V380SDC_A0 Datasheet Rev 1.01 DS-SD01-0101

© 2000 V3 Semiconductor Corp.

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