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參數資料
| 型號： | OZ998S |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | Intelligent Manager Smart Multi-DIMM Selector |
| 中文描述： | 智能管理智能多內存選擇 |
| 文件頁數： | 1/7頁 |
| 文件大小： | 50K |
| 代理商： | OZ998S |
OZ998
07/13/00
Copyright 2000 by O
2
Micro
OZ998-SF-2.2
All Rights Reserved
Page 1
Intelligent Manager
Smart Multi-DIMM Selector
FEATURES
SMBus, version 1.0, compliant
Intel PAS Protected Storage support
Support Pentium and x86-based designs
Support SMBus Q-Buffering via PWRGD
Support SMBus selector for dual/triple DIMMs
32KHZ input clock or Crystal input
Support 2 different power planes
10 bytes scratch pad registers
20 possible edge-sensitive programmable GPIOs
per device
8 possible Open Drain, Open Collector outputs
Programmable addresses for cascaded OZ998s
Supports 3.3V or 5V operation
Supports 5V tolerant LVTTL inputs (OZ998B)
LOW power hardware-driven speaker alarm
outputs
SMBALERT# and SMI event outputs
8 programmable interrupt inputs for SMI event or
SMBALERT#
8 Auto LED Flash (ALF) programmable outputs
with 10% or 50% duty cycles
ORDERING INFORMATION
OZ998S
- 28 pin SSOP
GENERAL DESCRIPTION
O
2
Micro’s OZ998 Multi-DIMM Selector supports the
switching between a primary SMBus and 3 other
secondary SMBus. This function is particularly useful
for DIMM devices and the support of Intel’s PAS
(Preboot Authentication Service).
In addition, the OZ998 can be configured to support
two different power planes with different sets of
General Purpose Input/Output (GPIO) signals, which
supplements and enhances the power management
capability of the chipsets, commonly found in an ACPI
(Advanced
Configuration
subsystem.
Up to 20 possible GPIOs are available per device,
and among those, GPIO[15:8] are programmable to
be either positive or negative-edged triggers to
generate an SMIEVENT/SMBALERT# to the system.
GPIO[7:0] are programmable to be either a regular
TTL level output, open drain or open collector output.
To support over 20 GPIOs through cascading multiple
OZ998 devices, configure each individual OZ998
device ID. Up to 8 Auto LED Flash (ALF) are available
to drive an LED or speaker at a programmable
frequency.
The OZ998 is packaged in a low profile, small 28 pin
SSOP.
of
Power
Interface)
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