The FIC A360 consist of several major functions and subsystems including:
• System Processor – implemented on the motherboard using the Intel Pentium-III or
Celeron with FC-PGA packaging at 100/133MHz system bus speed.
• System North Bridge Core Logic – implemented on the motherboard using the VIA
Twister chipset.
- SMA ( Share Memory Architecture )
- Savage IX AGP 3D Graphics Accelerator
• System South Bridge Core Logic – implemented on the motherboard using the VIA
VT82C686B PCI-to-ISA chipset.
- Enhanced IDE Interface for HDD, CD-ROM, and IDE Device Bay
- SoundBlaster/DirectSound AC97 Digital Audio Controller
- USB Interface for the external USB port
- Super I/O
• Clock Frequency Generator – implemented on the motherboard using the IMI 9806I
clock generator chip.
• Cache Memory Subsystem – implemented on-die on the Intel CPU.
• Video Subsystem – integrated on the motherboard using S3 Savage IX VGA chip and
on the LCD Panel for supporting the LCD and CRT.
• PCMCIA Subsystem – implemented on the motherboard using the O2Micro OZ6933
PCI-CARDBUS BRIDGE controller chip.
• Audio Subsystem – implement included on the VT82C686B.
• Keyboard and Pointing Device Subsystem – implemented on the AIO board, the
Keyboard assembly, and the Glidepad assembly.
• I/O Subsystem – implement included on the VT82C686B.
• Modem Feature Card – implemented on the motherboard via the mini-PCI bus
module socket.
• Power Subsystem – implemented on the battery board, LCD Inverter Board, Battery
Pack, and AC adapter.
• Micro -P Subsystem – implemented on the motherboard using Mitsubishi PMU07.
FIC A360 Service Manual 4-1
Hardware Functional Overview
4.2 System Hardware Block Diagram
P13
USB0
USB1
USB2
USB3
Intel
FC-PGA2
Tualatin
Processor
P3,4
VIA
TwisterT
552 mBGA
VT8603
P7,8
VIA
VT82C686B
352 mBGA
P9,10
32Bit PCI BUS
Audio DJ
OZ168
IDE BUS
RESERVE
CDROM
P31
AC-Link
ISA BUS
P32
SW
PCI&ISA
RES
P26
1394
LUCENT
FW323
DCIN
P43
P34
LCD
CRT
TV-OUT
Mini PCI
MODEM/
LAN
P24
RJ45
RJ11
P24P24
GTL
Terminator
P15
P16
P13
BM IDE
USB0
USB1
USB2
Blue Tooth
P6
TV
Encoder
CH7005
P30
P25
P25
P25
CPU
CORE
I/O
P5
CLOCKING
IMI9806C
P11
SDRAM
100/133MHZ
AC'97
CODEC
P27
AD1886
AMP
APA2020
P29
P12
P12
Mic IN
P44
HEADPHONE
SMBUS
PCMCIA
OZ6933
POWER
MIC2564A
P31
P19
P17
P18
PCMCIA SLOT0
P18
PCMCIA SLOT1
P18
Line-out
P30
DCIN CON
3VS/5VS/12VS
BATTERY
CHARGER
RTC CON
SUB BAT
INT K/B CON
GP CON
LED
POWER SW
DC/DC CON
P36
PMU3V/5V
P34
BAT CON
P41
PMU07
M38869
P35
Serial
PIC16C62
P20
P21
SERIAL
CON
FDD
P24
Parallel
PARALLEL
CON
FLASH
ROM
4M
W29C040
P21
P26
K/B CTRL
M38867
INT K/BGP
P23
P22
P41
EXT K/B
CON
P16
Figure 1-1 A360 Block Diagram
4-2 FIC A360 Service Manual
Hardware Functional Overview
4.3 Chipset Summary
The notebook consists of following major chipsets:
Controller Chip Vendor Description
Processor Intel FC-PGA Pentium III 933 / 1G / 1.3GMHz
FC-PGA Celeron 766 / 800MHz
Core Logic VIA Twister + VT82C686B
Video Controller S3 Savage IX
PCMCIA Controller O2Micro OZ6933
Supper I/O Controller VIA Integrated in South Bridge (VIA VT82C686B).
Audio Chip VIA Integrated in South Bridge (VIA VT82C686B)
Audio Amplifier APEC APA2020
Keyboard Controller Mitsubishi M38867
PMU Controller Mitsubishi PMU07, Mitsubishi M38867M(E)SA-xxxHP
Gas Gauge IC Included in PMU07
ROM BIOS SST 28SF040-12
Clock Generator IMI IMI 9806I
Temperature Sensor NS MAXIM-1617
USB Hub Integrated in South Bridge (VIA VT82C686B)
Modem (Type 3B) ASKEY 1456VQL19R-4 Mini-PCI Solution (Type-3B)
IEEE1394 Agere FW-323
4.4 System Processor (CPU)
The FIC A360 runs on Intel Pentium-III based on FC-PGA packaging. It supports CPU with
up to 1GHz clock speed rating. The processor operates in conjunction with the RAM and
ROM memory and the system control logic (e.g. VIA Twister) to process software
instructions (BIOS, Windows, and Applications).
4.4.1 Intel Pentium-III Features
Using Intel’s advanced 0.18 micron process technology, the Intel mobile Pentium III
processor is offered at speeds of 700MHz to 1GHz while still offering lower power for long
battery life. Other performance advancements include the addition of new Internet Streaming
SIMD instructions, the advanced transfer cache architecture, and a processor system bus
speed of 100MHz.
Intel Mobile Pentium III processor featuring Intel SpeedStep technology is the next dramatic
step towards achieving near desktop performance. This exciting new processor has two
performance modes and allows real-time dynamic switching of the voltage and frequency
between the modes. This occurs by switching the bus ratios, core operating voltage, and core
processor speeds without resetting the system.
There are two performance modes offered, Maximum Performance and Conserved
Performance. Maximum Performance mode provides near desktop performance and runs at
700, 750, 800 and 850 MHz. Conserved Performa nce mode provides the best balance
between performance and battery life and operates at a lower frequency of 550, 600, 650, 700
MHz. You can check the table of two performance modes as following.
FIC A360 Service Manual 4-3
Hardware Functional Overview
The integrated L2 cache is designed to help improve performa nce, and it complements the
system bus by providing critical data faster and reducing total system power consumption.
The Pentium III processor’s 64-bit wide Gunning Transceiver Logic (GTL+) system bus
provides a glue -less, point-to-point interface for an I/O bridge/memory controller.
Features summary of the Pentium-III CPU:
• Processor core/bus speeds
- Featuring Intel SpeedStep technology: Maximum Performance Mode at 1.60V
and Conserved Performance Mode at 1.35V
• Supports the Intel Architecture with Dynamic Execution
• On-die primary (L1) 16-Kbyte instruction cache and 16-Kbyte write -back data cache
• On-die second level L2 cache (256-Kbyte)
• Integrated GTL+ termination
64-bit data bus, 100-MHz operation
• Integrated math co-processor
• Intel Processor Serial Number
• Fully compatible with previous Intel microprocessors
- Binary compatible with all applications
- Support for MMX technology
- Support for Streaming SIMD Extensions enhances floating point, video, sound,
and 3-D application performance
• Power Management Features
- Qui ck Start for low power, low exit latency clock “throttling”
- Deep Sleep mode provide low power dissipation
• On-die thermal diode
4.4.2 Intel Celeron Features
The Intel Celeron processor is designed for uni-processor based Value PC and is binary
compatible with previous generation Intel architecture processors. The Intel Celeron
processor provides good performance for applications running on advanced operating systems
such as Windows 98 / Me , Windows NT / 2000, and UNIX. This is achieved by integrating
the best attributes of Intel processors – the dynamic execution performance of the P6 microarchitecture plus the capabilities of MMX technology – bringing a balanced level of
performance to the Value PC market segment.
Features summary of the Celeron CPU:
• Available up to 700 MHz core frequencies
• Integrated primary (L1) 16-Kbyte instruction cache and 16-Kbyte write back data cache
• Integrated second level (L2) cache 128-Kbyte ECC protected cache data array
• Intel’s latest Celeron processors in the FC-PGA package are manufactured using the
advanced 0.18 micron technology.
• Binary compatible with applications running on previous members of the Intel
microprocessor line.
• Supports the Intel Architecture with Dynamic Execution
• Specifically designed for uni-processor bas ed Value PC systems, with the capabilities of
MMX technology.
• Power Management Features. Quick Start for low power, low exit latency clock
“throttling” and Deep Sleep mode for extremely low power dissipation.
• Optimized for 32-bit applications running on advanced 32-bit operating systems.
4-4 FIC A360 Service Manual
Hardware Functional Overview
• UPGA-2 packaging technology for thin form factor notebook designs. Exposed die
enables more efficient heat dissipation.
• Low-Power GTL+ processor system bus interface. 64-bit data bus, 100-MHz operation.
• Integrated Intel Flo ating-Point Unit compatible with the IEEE Std 754
The system core logic function of the notebook is implemented on the CPU module and
motherboard using the VIA S3 Savage IX AGPset. The VIA S3 Savage IX AGPset is
intended for the Pentium III processor platform and emerging 3D graphics/multimedia
applications. The VIA S3 Savage IX AGPset brings 100/133-MHz FSB (front-side bus),
ATA/33/66/100 HDD support in UDMA mode 2 & 4 and PC100/133 SDRAM performance
to entry-level Performance PCs.
4.5.1 VIA TWISTER Features
The VIA TWISTER Host Bridge provides a Host-to-PCI bridge, optimized DRAM controller
and data path, and an Accelerated Graphics Port (AGP) interface. AGP is a high performance,
component-level interconnect targeted at 3D graphics applications and is based on a set of
performance enhancements to PCI.
The VIA TWISTER functions and capabilities include:
Define Integrated Solutions for Value PC Mobile Designs
• Integrated VIA Apollo Pro133 and S3® Savaged IX in a single chip
• 64-bit Advanced Memory controller supporting PC100/PC133 SDRAM and VCM
• Combines with VIA VT82C686B PCI-LPC South Bridge for state -of-the-art power
management
High Performance CPU Interface
• Socket 370 support for Intel Pentium III, Celeron™ processors
• 66/100/133 MHz CPU Front Side Bus (FSB)
• Built-in Phase Lock Loop circuitry for optimal skew control within and between clocking
regions
• Five outstanding transactions (four In-Order Queue IOQ) plus one output latch)
• Dynamic deferred transaction support
Advanced High Performance DRAM Controller
• DRAM interface runs synchronous (66/66, 100/100, 133/133) mode or pseudosynchronous (66/100, 100/66, 100/133, 133/100) mode with FSB
• Concurrent CPU, AGP, and PCI access
• Supports SDRAM and VCM SDRAM memory types
• Support 3 DIMMs or 6 banks for up to 1.5 GB of DRAM (256Mb DRAM technology)
• 64-bit data width
• Supports maximum 8-bank interleave (8 pages open simultaneously); banks are allocated
• Contrast, hue, saturation, brightness and gamma controls
• Digital port for NTSC/PAL TV encoders
Advanced System Power Management Support
• Dynamic power down of SDRAM
• Independent clock stop controls for CPU/SDRAM, AGP and PCI bus
• Low-l eakage I/O pads
Full Software Support
• Drivers for major operating systems and APIs
• North Bridge/Chipset and Video BIOS support
4-6 FIC A360 Service Manual
Hardware Functional Overview
4.5.2 VT82C686B Features
The VT82C686B PSIPC (PCI Super-I/O Integrated Peripheral Controller) is a highintegration, high performance, power-efficient, and high compatibility device that supports
Intel and non-Intel based processor to PCI bus bridge functionality to make a complete
Microsoft PC99-compliant PCI/ISA system.
The VT82C686B functions and capabilities include:
Inter-operable with VIA and other Host-to-PCI Bridges
• Combine with TWISTER for a complete 66 / 100 / 133 MHz Socket 370 or Slot-1 system
with integrated 2D / 3D graphics ( S3 Savage 4)
• Inter-operable with Intel or other Host-to-PCI bridges for a complete PC99 compliant PCI
/ AGP / ISA system
PCI to ISA Bridge
• Integrated ISA Bus Controller with integrated DMA, timer, and interrupt controller
• Integrated Keyboard Controller with PS2 mouse support
• Integrated DS12885-style Real Time Clock with extended 256 byte CMOS RAM and
Day/Month Alarm for ACPI
• Integrated USB Controller with root hub and four function ports
• Integrated UltraDMA-33/66 master mode EIDE controller with enhanced PCI bus
commands
• PCI-2.2 compliant with delay transaction and remote power management
• Distributed DMA support for ISA legacy DMA across the PCI bus
• Fast reset and Gate A20 operation
• Flash EPROM, 4Mb EPROM and combined BIOS support
• Built-in NAND-tree pin scan test capability 35um, 3.3V, low power CMOS process
• Single chip 27x27 mm, 352 pin BGA
4.6 Clock Frequency Generator
The notebook utilizes the IMI 9896I chip to supply the system clock needed to run the
computer. The following are the available clock frequencies:
System clock:
Clock generator IMI 9806I support:
- 66/100 MHz for Pentium III Mobile CPU
- 30/33 MHz for PCI device bus clock use
- 48 MHz for PIIX4M
- 14.318 MHz for PIIX4M refresh use
• 14.318 MHz XTAL for Clock Generator use
• 32.768 KHz XTAL for RTC real time clock
• 8.0 MHz XTAL for K/B controller use
• 14.318 MHz OSC for sound blaster use
4.7 Cache Memory
The primary (L1) and secondary (L2) level cache are integrated on the CPU. By incorporating
the cache on-die (meaning it is combined with the CPU into one component), Intel eliminates
the need for separate components. The 256KB on-die L2 cache provides three (3X) times
faster processor access, resulting in significant improvements in performance. Likewise, an
integrated cache means a reduction of connections resulting in increased reliability.
4.8 System Memory
The memory subsystem, implemented on the motherboard, includes System and Video
memory. The VIA Twister System Controller chip provides primary control for the system
memory.
FIC A360 Service Manual 4-9
Hardware Functional Overview
4.8.1 System Memory
The notebook offers two 64-bit SODIMM (Small Outline Dual Inline Memory Module)
sockets for main memory configuration. The memory sockets accept any standard 144-pin
SODIMM modules at 16MB, 32MB, 64MB, 128MB and 256MB sizes. Memory modules are
3.3V SDRAM type.
4.8.2 Video Memory
The video memory of the notebook is embedded inside the VGA controller chip (S3 Savage 4)
with 8,16 and 32MB SMA video memory that can support display resolutions of up to 1024 x
768 at 32-bit 16M color (TFT LCD).
4.9 System BIOS
The notebook utilizes the Phoenix BIOS 4.0 Release 6.0 (Basic I/O System) that contains
both the main system BIOS and the VGA BIOS with Shadow BIOS capability. It utilizes
Flash EPROM BIOS that allows instant erasing and programming without replacing the
EPROM chip.
The BIOS is stored in a 32-pin PLCC package FLASH ROM SST 28SF040A -90/120 or
Winbond W29C040P -90 with 4Mbit size and is mounted into the motherboard. While posting
the system, the Shadow RAM will be enabled and the ROM will be disabled.
4.10 Video Subsystem
The video subsystem, integrated inside the North Bridge chip and the LCD panel, controls the
display output to both the LCD Panel screen and to the external VGA port.
4.10.1 Video Chip Controller
S3 Savage 4 also includes 8, 16 and 32MB of shared architecture memory (SMA) with all of
the above in a single BGA package.
Feature Summary of the S3 Savage 4:
• S3 Savage 4 Chip set
• 32/64-Bit 8/16/32MB SMA video buffer
• Designed for AGP 4X/2X with side -band addressing and execute modes
• 128 bit engine with dual rendering pipelines
• Floating point triangle setup engine Single cycle 3D architecture and trilinear filtering
• True color rendering
• 140MHz pixels/sectrilinear fill rate
• 8M triangle/sec setup engine Full speed DVD video play back
• VESA-DPMS 2.0 and DDC2
• Support Industry standard S3 Texture Compression
4-10 FIC A360 Service Manual
Hardware Functional Overview
• Support major 3D sta ndards: DierctX, OpenGL
• Support Pentium III SEE Command and AMD K6-2 / 3 , K7 3Dnow!
Technology.Resolution up to 1920x1440
Frame Buffer Size
Resolutions Supported 8MB 16/32MB
640x480x8/16/32 bit Yes Yes
800x600x8/16/32 bit Yes Yes
1024x768x8/16/3 2 bit Yes Yes
1280x1024x8/16 bit Yes Yes
1280x1024x32 bit Yes Yes
1600x1200x8/16 bit Yes Yes
1600x1200x32 bit Yes Yes
1920x1440x8 bit Yes Yes
1920x1440x16 bit Yes Yes
1920x1440x32 bit Yes
4.10.2 Video Clock
VIA VT82C686B provides input to generate VGA internal slate machine, MCLK, and
DCLK. Also provides 32.768 KHz O/P for video RAM refresh.
4.11 PCMCIA Controller
The PCMCIA controller of the notebook is implemented on the motherboard using the
O2Micro OZ6933 CardBus Controller. The notebook supports two PCMCIA slots for
insertion of two Type I/II cards at the same time .
CARDBUS CONTROLLERS
The OZ6933 is an ACPI and PC98/99 logo certified high performance, dual slot PC Card
controller with a synchronous 32-bit bus master/target PCI interface. This PC Card to PCI
bridge host controller is compliant with the 2000 PC Card Standard. This standard
incorporates the new 32-bit CardBus while retaining the 16-bit PC Card specification as
defined by PCMCIA release 2.1. CardBus is intended to support "temporal" add-in functions
on PC Cards, such as Memory cards, Network interfaces, FAX/Modems and other wireless
communication cards, etc. The high performance and capability of the CardBus interface will
enable the new development of many new functions and applications.
The OZ6933 CardBus controller is compliant with the latest ACPI-PCI Bus Power
Management interface Specification. It supports all four power states and the PME# function
for maximum power savings and ACPI compliance. Additional compliance to On Now Power
Management includes D3 cold state support, paving the way for low sleep state power
consumption and minimized resume times. To allow host software to reduce power
consumption further, the OZ6933 provides a power-down mode in which internal cloc k
distribution and the PC Card socket clocks are stopped. An advanced CMOS process is also
used to minimize system power consumption.
The OZ6933 dual PCMCIA socket supports two 3.3V/5V 8/16-bit PC Card R2 cards or 32-bit
CardBus R3 cards. The R2 card support is compatible with the Intel 82365SL PCIC controller,
FIC A360 Service Manual 4-11
Hardware Functional Overview
and the R3 card support is fully compliant with the 2000 PC Card Standard CardBus
specification. The OZ6933 is an additional buffer chip for the PC Card socket interface. In
Addition, the OZ6933 supports dynamic PC Card hot insertion and removal, with auto
configuration capabilities.
The OZ6933 is fully complains with the 33Mhz PCI Bus specification, v2.2. It supports a
master device with internal CardBus direct data transfer. The OZ6933 implements FIFO data
buffer architecture between the PCI bus and CardBus socket interface to enhance data
transfers to CardBus Devices. The bi-directional FIFO buffer permits the OZ6933 to accept
data from a target bus (PCI or CardBus interface) while simultaneously transferring data. This
architecture not only speeds up data transfers but also prevents system deadlocks.
The OZ6933 is a PCMCIA R2/CardBus controller, providing the most advanced design
flexibility for PC Cards that interface with advanced notebook designs.
FEATURES - Dual Slot Solution OZ6933
• Supports 2 PCMCIA 2.1 and JEIDA 4.2 R2 cards or 2 CardBus cards
• ACPI-PCI Bus Power Management Interface Specification Rev 1.1 Compliant
• Supports OnNow LAN wakeup, OnNow Ring Indicate, PCI CLKRUN#, PME#, and
CardBus CCLKRUN#
• Compliant with the 33Mhz PCI Specification V2.2, 2000 PC Card Standard 7.1 for
OZ6933
• Yenta™ PCI to PCMCIA CardBus Bridge register compatible
• ExCA (Exchangeable Card Architecture) compatible registers map-able in memory
and I/O space
• Intel™ 82365SL PCIC Register Compatible
• Supports PCMCIA_ATA Specification
• Supports 5V/3.3V PC and 3.3V Cardbus cards
• Supports two PC Card or CardBus slots with hot insertion and removal
• Supports multiple FIFOs for PCI/CardBus data transfer
• Supports Direct Memory Access for PC/PCI and PCI/Way on PC Card socket
• Programmable interrupt protocol: PCI, PCI+ISA, PCI/Way, or PC/PCI interrupt
signaling modes
• Win'98 IRQ and PC-98/99 compliant
• Parallel or Serial interface for socket power control devices including Micrel and TI
• Integrated PC 98/99 -Subsystem Vendor ID support, with auto lock bit
• LED Activity Pins
4-12 FIC A360 Service Manual
Hardware Functional Overview
• OZ6933 supports D3cold state PME# wakeup; 3.3Vaux Power; and Zoomed video
buffer enable pins
• OZ6860: "Built -in" live video, high throughput, multimedia ZV ports support without
additional buffers; 3V card protection during host system suspend with Auto Card
VS# resensing; dedicated ZV output port to LCD controller
SmartCardBus™ (OZ711E1/OZ711E2) combines a Smart Card reader and CardBus
controller in a single IC. In addition to meeting PC Card standards, SmartCardBus is
compliant to Microsoft PC/SC, ISO 7816-1, -2, -3 electrical specifications, standard protocols
including T = 0, T = 1, and synchronous and asynchronous formats. SmartCardBus lowers the
cost of ownership of e-commerce and corporate security Smart Card applications.
4.12 Audio Subsystem
The audio subsystem is integrated inside the South Bridge chip on the motherboard. Refer to
the System Core Logic section of this chapter.
An internal two-way mini speaker and microphone provide the notebook with mobile sound
generation and recording capabilities. In addition, a set of 3.5mm bayonet socket (1/8”
minijack) connectors allow for external microphone, line inputs, and headphone outputs.
4.13 Keyboard and Pointing Device
The Keyboard Subsystem of the notebook is implemented on the Motherboard and Keyboard
Assembly using the Mitsubishi 38867M8 keyboard controller chip and the Phoenix
MultiKey/M3886L keyboard controller firmware. This chip controls the internal built -in
keyboard, the built -in touchpad pointing device, as well as the external PS/2 keyboard and
mouse port. The keyboard controller allows simultane ous use of both the internal and external
keyboard and PS/2 mouse.
The A360 membrane keyboard is an 86-key IBM 101-key enhanced compatible keyboard
with standard characters and 12 function keys including an embedded numeric keypad. See
Chapter 1 for more information.
The pointing device subsystem consists of the built -in Synaptics touch pad pointing device
module on the system top cover assembly and a pre-programmed Mitsubishi 38867M8 microcontroller that interfaces the mouse device to the Motherboard. The touch pad module is
connected to battery board through a 6-pin FPC cable. An external PS/2 port also supports the
use of an external PS/2 compatible mouse where the system automatically detects on system
power up and runs both internal and external mo use simultaneously.
The Synatics touch pad, a pointing device for personal computers, detects the position of a
finger over a touch-sensitive area. To move the cursor, the user lightly slides a finger over the
smooth sensor area. To ‘click’, the user gently taps on the surface.
The ultra-thin module is the thinnest PCB based touchpad available today. It is a capacitive
sensor - the finger is detected by measuring its effect on an array of capacitive lines integrated
into the PC board. The pad senses both the finger’s position and its contact area (X, Y, and Z).
The area of contact is a measure of applied pressure. One side of the module PC board is the
FIC A360 Service Manual 4-13
Hardware Functional Overview
sensor surface; electronic components are mounted on the other side. The sensitive area is
protected by a layer of smooth and durable mylar.
The Synatics touch pad communicates with the host via a standard PS/2 mouse or trackball
interface. It is fully compatible with the standard Microsoft mouse driver. The module
connector includes the PS/2 signal pins, power supply pins and two connections for external
button switches.
The Synatics touch pad includes a special “edge-motion” feature that allows the user to
extend a drag operation when the finger reaches the edge of the sensor pad. The cursor
continues to coast in the indicated direction when the finger is held against the edge.
4.14 Disk Drives Subsystem
The disk drives subsystem, implemented on the Motherboard and on the associated internal
hard disk drive assembly and device bay, provides disk storage for all system software and
user files.
The notebook is equipped with high capacity hard disk drive using Enhanced IDE controller
with LBA (Logical Block Addressing) and Ultra DMA mode support.
The VT82C686B controller chip provides the Primary IDE controller for the internal hard
disk, and the Secondary Master for the CD-ROM.
The floppy disk drive supports standard 3.5-inch 720KB and 1.44MB mini-diskettes while
adding support for 1.2MB (3 Mode) mini-diskettes for Japanese market.
The notebook uses the 24X-speed IDE CD-ROM Drive that reads digital data stored on CDROM at 24 times faster rotational speed. The CD-ROM drive supports CD-DA transfer over
ATAPI function that the host system can read CD audio data. The drive also supports PhotoCD Multi-session disc compatibility and Multimedia PC-3 specification compatibility. The
notebook also could use the 8X+ speed IDE DVD-ROM Drive that reads DVD digital data
stored on DVD-ROM at 8 times faster rotational speed.
4.15 Power Subsystem
The Power Subsystem consists of the following major sections:
4.15.1 AC Power Adapter
The computer is equipped with a 60W universal AC power adapter that converts AC voltage
(100 to 240VAC, 50 to 60Hz) into DC voltage used to operate the notebook and charge the
batteries.
4.15.2 Internal Battery Pack
The computer utilizes Nickel Metal Hydride (NiMH) or Lithium-Ion (Li-Ion) that provides
DC power for the notebook and real time clock battery on the motherboard when the AC
Adapter is not connected to the computer.
The norma l charging time for the battery is around 2.5 hours when computer is turn off while
it should take around 8 hours when the computer is running. Running time of battery is
around 2 to 2.5 hours.
4-14 FIC A360 Service Manual
Hardware Functional Overview
4.15.3 DC-DC Module of Motherboard
The DC-DC module receives approximately 12VDC from the battery pack and uses this input
voltage to generate multiple regulated output voltages to provide power for all internal
notebook board assemblies.
4.15.4 LCD Inverter Board Assembly
The LCD Inverter Board Assembly is located in the LCD Panel Assembly. It converts the
+12VDC input directly from the Battery Pack into a high voltage AC output used to light the
CCFT (Cold -Cathode Fluorescent Tube).
FIC A360 Service Manual 4-15
Hardware Functional Overview
4.16 Micro-P Subsystem (PMU-07)
The micro controller Mitsubishi PMU07 acts as a supplement for the power management
control. It supports many functions via the SMBus interface.
The system communicates with the PMU07 via the SMBus interface. The SMBus host
(M38867) should be first initialized before starting the transaction. The follow ing is the
procedure for system communication with PMU07:
1. Enable SMBus interface by writing 01h to SmbHstCfg register.
2. Get SMBus I/O port base address by reading from SmbBA register.
3. Clear SMBus status by writing 1Eh to SmbHstSts register.
4. Write the PMU07 slave address to SmbHstAdd register.
− Send command to PMU07 -- Slave address is 04h.
− Read data from PMU07 -- Slave address is 05h.
5. Write the desired command to SmbHstCmd register.
6. Write the desired parameters to SmbHstDat0(High byte) and SmbHstDat1(Low byte)
registers if the system wants to send command to PMU07.
7. Wait for SMBus interrupt occurred by monitoring SmbHstSts register INTR bit.
8. Get the desired data by reading from SmbHstDat0(High byte) and SmbHstDat1(Low
byte) registers if the system wants to read data from PMU07.
Features Summary of the Micro-P:
• 5 channels 8-bit analog to digital converter
• Timer0: 8-bit tuner/counter with 8-bit prescaler
• Timer1: 16-bit timer/counter. TMR1 can be incremented during sleep via external
crystal/clock
• Timer2: 8-bit timer/counter with 8-bit period register, prescaler and postscaler