Toshiba tecra m2 Laptop User Manual


 
1.2 System Unit Block Diagram 1 Hardware Overview
Firmware Hub (FWH)
One STMicro M50FW080N1 is used.
This gate array has the following features:
Firmware hub hardware interface mode
Two configurable interfaces
Program/erase controller
Program and erase suspend
8Mbits of flash memory for platform code/data nonvolatile storage
Address/Address-Multiplexed (A/A Mux) interface/mode
Case temperature operating range
Vcc: 3V to 0.36V
Vpp: 12V for fast programming
8Mbits of flash memory are used as shown below:
64KB are used for VGA-BIOS.
288KB are used for system BIOS.
8KB are used for plug and play data area.
8KB are used for password security.
16KB are used for boot strap.
32KB are used for ACPI P code.
48KB are used for LOGO.
128KB are reserved for LAN BIOS.
432KB are reserved.
VGA Controller
One nVIDIA NV34M chip is used. The video controller incorporates graphics accelerator
and video accelerator.
Internal VRAM, 32MB/64MB DDR 250MHz
AGP bus R2.0 ×4
LCD Interface LVDS 2ch
TV Encoder: Supports S-video
DVI Supported by Dock
Sound Controller
One AC'97Codec AD1981B chip and AC-Link controller embedded in ICH4-M
SW sound
TECRA M2 Maintenance Manual (960-468) 1-11