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| 型號(hào)： | VRC4373 |
| 廠商： | NEC Corp. |
| 英文描述： | Interface Controller(接口控制器) |
| 中文描述： | 接口控制器（接口控制器） |
| 文件頁數(shù)： | 1/2頁 |
| 文件大小： | 10K |
| 代理商： | VRC4373 |
U12927EU1V0PB00
Product Brief (Preliminary)
July 1997
NEC Electronics Inc.
V
Interface Controller for the
V
R
4300 Microprocessor
RC
4373
Description
The V
RC
a V
R
4300 microprocessor, DRAM memory system, and standard PCI bus.
The V
RC
4373 interface controller connects directly to the V
and PCI bus with no buffering required. The V
necessary to directly drive several types of DRAMs at various speeds. The inter-
face control logic is highly configurable by software and requires minimal hard-
ware configuration for use in many different types of systems.
4373 is a single-chip device that provides a glueless interface between
R
4300 microprocessor
RC
4373 contains the interface logic
V
Glueless interface to the V
3.3-volt I/O
Compatible with all V
Little-endian byte ordering
R
4300 Interface
R
4300 microprocessor
R
4300 bus cycle types and combinations
Programmable Memory Interface
Base memory plus four SIMMs
Programmable address ranges for base memory and each SIMM
Flash memories and fast-page and EDO in each range
Up to 4 megabits of synchronous DRAM supported in base memory
Several speed grades
Interleaved or noninterleaved base memory
Interleaved or noninterleaved SIMMs
Interleaving buffers internal to the V
Open DRAM page in base memory
Built-in refresh generation
3.3-volt outputs; 5-volt tolerant inputs
RC
4373
PCI Interface
Master and slave capability
Host bridge and add-in card support
PCI arbiter
133-Mbps burst cycles
No interrupt support
3.3-volt PCI compliant and 5-volt tolerant inputs
VRC4373 and VR4300 are trademarks of NEC Corporation. SIMM is a trademark of Wang Laboratories
.
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