Toshiba satellite a20 series Benutzerhandbuch

1  Hardware Overview 

 

 

 PCI Chip Set 

North Bridge 

ALi M1672 Northbridge with Integrated Graphic Chip  
 
 

ALi PCI Northbridge Core Logic Processor Support 

–  Supports Intel Pentium 4 microprocessor family with host bus frequency 

can be up to 400MHz 

–  64-bit data bus and 32-bit addressing bus 
–  Optimum buffering architecture design for CPU to memory, AGP and PCI 

read/write 

–  Flexible configuration to support back-to-back read transfer in 1QW or 

2QW 

–  Supports back-to-back write transfer 
–  Supports synchronous / pseudo asynchronous clock mode between 

processor and memory interface with optimized latency 

 

Memory Support 

–  Supports SDR DRAM PC-100, PC-133 
–  Supports DDR up to 200, 266MHz 
–  Supports symmetrical and asymmetrical SDRAM / DDR addressing 
–  Supports 64, 128, 256, 512Mbit SDRAM / DDR 
–  Maximum memory size: 3GB 
–  Supports 6 memory rows with per byte access on each row  
–  Supports memory shadowing 
–  x-1-1-1-1-1-1-1 back-to-back page hit 
–  CAS before RAS and self refresh for SDRAM 
–  Pipelined SDRAM / DDR cycle control with hidden pre-charge 
–  Dynamic switching CKE algorithm 
–  Supports LVTTL / SSTL2 signal level 

 

 

Advanced Mobile Power Management 

–  Low power cell design 
–  Suspend and standby modes 
–  Internal clock gating on each functional block 
–  PCIPM (H/W PCI initiated) 
–  AGP Busy#/Stop# and PCI Clock Run# 
–  ACPI and DPMS support 

 

 

High Performance DirectX 7.0 3D Engine 

 DVD 

Playback