Toshiba Satellite A60 Maintenance Manual page 24

1 Hardware Overview
BIOS ROM (flash E2PROM)
• 4Mb x 1 chip (512KB flash parts)
System controllers
• North Bridge: ATI RS250 M
• South Bridge: ATI IXP150
1-10
− 29kb used for EC BIOS
− 46kb used for VGA BIOS
− 29kb used for pxe boot
− 4kb used for logo
− 7kb used for USB
− 14kb used for SCU
− 2kb used for CF Card
− 9kb used for PCI
− 3kb used for ACPI
− 14kb used for PNP
− 35kb used for PM
− 51kb used for system BIOS
− 10kb used for micro code
− 2kb used for DMI
− 4kb used for password
− 24kb used for boot load
− 156kb reserved
− CPU interface and control
− DRAM control
− AGP master/slave interface (AGP1.0 compliant, AGP V2.0
compliant x 4 modes)
− Memory 256MB,Video RAM 64MB
− Memory 512MB,Video RAM 64MB
− Enhanced DMA controller
− Interrupt controller
− Counter/timer
− PCI master/slave interface (PCI R2.2 compliant)
− PCI IDE controller
− Support for ATA-100 (30/40/60/80 GB)
− USB interface
− SMBus interface
− LPC interface
− Power management control
− Suspend/resume control
1.2 System Unit Block Diagram
Satellite A60/ Pro A60 Maintenance Manual