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G1-266P-85-1.8 Datasheet

  • G1-266P-85-1.8

  • Processor Series Low Power Integrated x86 Solution

  • 4113.01KB

  • 247頁

  • NSC

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Geode鈩?GX1 Processor Series Low Power Integrated x86 Solution
April 2000
Geode鈩?GX1 Processor Series
Low Power Integrated x86 Solution
General Description
The National Semiconductor
廬
Geode鈩?GX1 processor
series is a line of integrated processors specifically
designed to power information appliances for entertain-
ment, education, and business. Serving the needs of con-
sumers and business professionals alike, it鈥檚 the perfect
solution for IA (information appliance) applications such as
thin clients, interactive set-top boxes, and personal internet
access devices.
The Geode GX1 processor series is divided into three main
categories as defined by the core operating voltage. Avail-
able with core voltages of 2.0V, 1.8V, and 1.6V, it offers
extremely low typical power consumption (1.2W, 1.0W, and
0.8W, respectively) leading to longer battery life and
enabling small form-factor, fanless designs. Typical power
consumption is defined as an average, measured running
Microsoft Windows at 80% Active Idle (Suspend-on-Halt)
with a display resolution of 800x600x8 bpp at 75 Hz.
Geode鈩?GX1 Processor Internal Block Diagram
Clock Module
SYSCLK
SYSCLK
multiplied
by 鈥淎鈥?/div>
INTR
Core
Clocks
X-Bus
Clocks
x86 Compatible Core
INT/NMI
TLB
Integer
Unit
FP_Error
Interrupt
Control
IRQ13
SMI#
Scratchpad
16 KB
Unified L1
Cache
(128)
Instruction
Fetch
MMU
Load/Store
Floating Point
Unit
C-Bus (64)
SUSP#
Core Suspend
SUSPA#
Power
Management
Control
Core Acknowledge
X-Bus Suspend
X-Bus Acknowledge
X-Bus (32)
Arbiter
X-Bus
Controller
Write
Buffers
Read
Buffers
Arbiter
PCI Host
Controller
2D Accelerator
VGA
BLT Engine
ROP Unit
X-Bus CLK
divide by 鈥淏鈥?/div>
Display Controller
Compression Buffer
Palette RAM
Timing Generator
3
REQ/GNT
Pairs
PCI
Bus
4
SDRAM
Clocks
64-bit
SDRAM
RGB
YUV
Geode鈩?Graphics
Companion Interface
National Semiconductor and Virtual System Architecture are registered trademarks of National Semiconductor Corporation.
Geode, WebPAD, and VSA, are trademarks of National Semiconductor Corporation.
For a complete listing of National Semiconductor trademarks, please visit www.national.com/trademarks.
漏 2000 National Semiconductor Corporation
www.national.com
Geode鈩?I/O Companio

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