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Software Functional Overview

FIC A440 Series Service Manual 3-1

Chapter

3.1

3.13.1

3.1

Overview

OverviewOverview

Overview

The A440 is an IBM PC/AT compatible Notebook PC that supports the Socket 370 Intel

Mobile Pentium III or Celeron processor family. The following are the major features that

A440 supports:

•

Microsoft PC99 and ACPI logo approval

•

Offer 800x600 SVGA display with 12.1” LCD panel

•

Offer 1024x768 XGA display with 13.3”/14.1” LCD panel

•

Support ACPI 1.0 (or above)

•

Support PCI 2.1 (or above)

•

Support AGP 2.0

•

Support SMBIOS 2.1 (or above)

•

Support 100MHz CPU front side bus

•

Support a proprietary Port Replicator

3.2

3.23.2

3.2

Summary of the BIOS Specification

Summary of the BIOS SpecificationSummary of the BIOS Specification

Summary of the BIOS Specification

Below is the summary of the BIOS software specification:

Controller Chip Description

BIOS Feature  Boot Block / Crisis Rescue

 APM 1.2 Compliance

 Support PCI 2.1 (or above) Spec

 Support Windows 95, Windows NT4.0, Windows 98, and

Windows 2000

 Support Flash function for new BIOS update

 Support 3-Mode FDD

 Support ACPI 1.0 (or above) Spec

 Support SMBIOS 2.1 (or above) Spec

 Support AGP 2.0

 Support boot from FDD, HDD and CDROM Drive

 Support maximum 4 different keyboards on same BIOS

CPU Auto detect the CPU type and speed for the Socket 370 or Slot 1

based system

DRAM  Auto sizing and detection

 Support PC-100 SDRAM

Cache  Level 2 SRAM auto sizing and detection

 Always enable CPU L1 and L2 cache

Shadow Always enable VGA and System BIOS shadow

Display  System auto detects LCD or CRT presence on boot and lid

closed

 Support Panning while LCD in a display resolution greater

than supported

 Support Microsoft Direct 3D

Summary of content (33 pages)

PAGE 1
3 Chapter Software Functional Overview 3.1 Overview The A440 is an IBM PC/AT compatible Notebook PC that supports the Socket 370 Intel Mobile Pentium III or Celeron processor family. The following are the major features that A440 supports: • • • • • • • • • 3.2 Microsoft PC99 and ACPI logo approval Offer 800x600 SVGA display with 12.1” LCD panel Offer 1024x768 XGA display with 13.3”/14.1” LCD panel Support ACPI 1.0 (or above) Support PCI 2.1 (or above) Support AGP 2.0 Support SMBIOS 2.
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Software Functional Overview Controller Chip Hard Disk Multi Boot Plug and Play Smart Battery Keyboard Controller PCMCIA Port Replicator Power Management Support (APM Mode) Power Management Support (ACPI Mode) 3-2 Description Enhanced IDE spec Support auto IDE detection Support LBA mode for larger capacity HDD Support Ultra DMA 33 Support Fast PIO mode 1-4 transfer Support 32-bit PIO transfer Support Multi-Sector transfer Allow the user to select boot from FDD, LS120, HDD and CDROM Support PnP Run Time
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Software Functional Overview 3.3 Subsystem Softw Software are Functions This section provides introduction on the software functions of the notebook subsystems and BIOS related function. 3.3.
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Software Functional Overview Slot #1 128MB 128MB 128MB NIL NIL NIL Slot #2 32MB 64MB 128MB 32MB 64MB 128MB Total Size 160MB 192MB 256MB 32MB 64MB 128MB 3.3.3 Video The Video subsystem uses 4 or 8MB of “Shared Memory” from the System Main Memory. The system supports true ZV port, Microsoft Direct 3D, simultaneous display, monitor sense for auto display on boot and VESA Super VGA function call.
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Software Functional Overview Supported extended video modes: VESA Mode Pixel Resolution Colors Dot Clock 100 101 640*400 640*480 256 256 103 800*600 256 105 1024*768 256 10D 10E 110 320*200 320*200 640*480 32K 64K 32K 111 640*480 64K 112 640*480 16M 113 800*600 32K 114 800*600 64K 115 800*600 16M 116 1024*768 32K 117 1024*768 64K 120 121 122 123 124 125 320*240 320*240 400*300 400*300 512*384 512*384 256 64K 256 64K 256 64K 25.175 MHz 25.175 MHz 31.5 MHz 36.0 MHz 40.
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Software Functional Overview Panel Type Initialization The VGA BIOS will issue an INT 15h function call during POST. This function call allows the system BIOS to specify the panel type to the VGA BIOS. The system BIOS should get the panel type from GPI pins before the VGA chip initializes, and pass this information to VGA BIOS through INT 15 Function 5F00h.
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Software Functional Overview Both software and hardware will control the volume level for the internal audio subsystem. In addition to the volume control, the user will be able to mute the sound to completely cut off the volume using both software and hardware. 3.3.6 Super I/O The Super I/O controller is embedded inside the VIA VT82C686A South Bridge chip. This controller contains 16550A or FIFO Enabled UART, ECP/Standard/Bi-directional Parallel Port meeting the 1284 specification. 3.3.
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Software Functional Overview 3.3.9 Hot Keys Definition All Hot keys must be active at all times under all operation systems.
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Software Functional Overview 3.3.11 Plug & Play The BIOS supports the Plug and Play Specification 1.0A. This section describes the device management.
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Software Functional Overview 3.3.12 PCI Device The table below summarizes the IDSEL Pin Allocation: IDSEL Pin PCI Device Device Number Function Number Device Name AD11 Device 00 Function 0 VT8601 Host to PCI bridge. AD12 Device 01 Function 0 VT8601 PCI to PCI bridge. AD17 Device 06 Function 0 MODEM / LAN Function 0 VT82C686A – PCI to ISA bridge Function 1 VT82C686A – IDE interface Function 2 VT82C686A – USB Port 0-1 Interface Function 3 VT82C686A – USB Port 2-3 Interface.
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Software Functional Overview 3.3.13 SMBus Devices The SMBus is a two-wire interface through which the system can communicate with powerrelated chips. The BIOS should initialize the SMBus devices during POST.
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Software Functional Overview Hex Address 3F0 – 3F7 3F8 – 3FF 530 – 537 778 – 77B A79 CF8 – CFC Device Floppy Disk Controller Serial Port 1 Windows Sound System ECP port PnP configuration – Write data port PCI BUS configuration register ISA DMA Map DMA Channel DMA 0 DMA 1 DMA 2 DMA 3 DMA 4 DMA 5 DMA 6 DMA 7 Device Unused ECP Floppy Disk Audio [Cascade] Unused Unused Unused Memory Map Address Range 00000 ~ 9F7FFh 9F800 ~ 9FFFFh A0000 ~ BFFFFh C0000 ~ C9FFFh CA000 ~ DFFFFh E0000 ~ FFFFFh Length 638KB 2 KB
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Software Functional Overview IRQ# IRQ13 IRQ14 IRQ15 Description FPU Hard Disk Drive CDROM or DVD 3.3.15 GPIO Pin Assignment The GPI and GPO pins connected to system devices. The BIOS can get device status and control the device via the GPI and GPO pins. PMU and GPIO Signal Description Pin Name Signal Name Description Components GPI [0] LS120IN# LS120 module inside.
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Software Functional Overview Pin Name Signal Name GPO [0] NC GPO [1] NC Description Components STR# Suspend to ram. VT82C686A PIC GPO [3] SUSSTAT1# Suspend status 1 VT82C686A GPO [4] CPUSTP# CPU stop clock VT82C686A GPO [5] PCISTP# PCI stop clock VT82C686A GPO [6] NC GPO [7] NC Select SO0DIMM Dram socket I2C Bus A or B.
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Software Functional Overview Pin Name Signal Name Description Components SDA SMBCLK SM bus clock M 38867 PIC SCL SMBDATA SM bus data M 38867 PIC P40 KBCEXTSMI# Keyboard SMI# M38867 P54 BATLOW# Battery low signal M38867 P55 LID# LCD lid closing M38867 P56 CONADJ# Panel contrast vary M38867 P57 BACKADJ# Panel backlight brightness vary M38867 P60 IDA# Battery Inside.
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Software Functional Overview 3.4 Power Management This section provides the Power Management software function of the notebook. 3.4.1 General Requirements The BIOS meet the following general Power Management requirements: • • • • • • 3.4.2 Compliant with APM 1.2 Specification Full APM Support for Windows 95 Fuel Gauge and Power Management functionality Support for Suspend-to-RAM and Suspend-to-Disk mode Support for Resume on Modem Ring while in STR Mode.
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Software Functional Overview Power Button or RTC, can bring the platform out of the Suspend-to-disk (STD) state. Soft Off (SOFF) Mode This is the same as suspend to disk except the context of memory is not saved. The system will resume from Soft Off as if a hard reset had occurred. Mechanical Off (MOFF) Mode All power except the RTC has been removed from the system. 3.4.
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Software Functional Overview 3.4.
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Software Functional Overview 3.4.5 PMU Mode Transition Event The following table summarizes the entry events and wake-up events of each power management mode: Power State Doze Entry Event Doze Time out STR Suspend Time out Lid close Sleep button STR hotkey pressed. STD Suspend Time out Battery Low Fn + Sleep Button Sleep button Execute Win95 shutdown command Soft Off 3.4.
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Software Functional Overview State Component LCD Backlight Serial (UART1) LAN Modem Parallel Doze Stand By STR STD/Soff ON ON ON ON ON Power down Power down Power down Power down Power down Power Off Power down Power down Power down Power Off Power Off Power Off Power Off Power down Power Off Device Power Control Methodology During Stand by Mode This section illustrates the control methodology of each device/component and its details under Stand by mode.
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Software Functional Overview Device LAN FDD Audio AMP LCD Backlight Clock Synthesizer KBC MAX3243 (RS232 transceiver) L2 CACHE PIC 16C62A Power Down Controlled by Hardware Hardware Hardware Hardware Hardware Software Hardware Hardware Software Description See H/W Spec Power off Power off Power off Power off Controlled by M38867 power down command Controlled by GPO [21] Pin Power off Controlled by PIC 16C62A power down command Device Power Control Methodology During Suspend to Disk Mode This section illus
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Software Functional Overview 3.4.7 Power / Sleep Button The Power / Sleep Button can work as Power Button or Suspend Button where the working mode is selected by CMOS setup menu.
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Software Functional Overview • Power Switch (When system is not in STR or STD mode) Resume from Suspend to RAM • Power Switch • Modem Ring (SETUP “Resume From Modem Ring: [Enabled]”) • RTC alarm Resume from Suspend to Disk • Power Switch • Modem Ring (SETUP ”Resume From Modem Ring: [Enabled]“) • RTC alarm Resume from Off • Power Switch FIC A440 Series Service Manual 3-23
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Software Functional Overview 3.5 ACPI 3.5.1 General Requirements This section provides the ACPI software function of the notebook. The BIOS must meet the following general Power Management requirements: • • • Refers to the portion of the firmware that is compatible with the ACPI specifications. Support for Suspend-to-RAM (S3 state) and Suspend-to-Disk mode (S4 state). Support the Wake up event from Modem Ring in S3~S4 state. This is enabled by a CMOS Setup option.
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Software Functional Overview G2/S5 - Soft Off This is a state where the computer consumes a minimal amount of power. No user mode or system mode code is running. This state requires a large latency in order to return to the Working state. The system’s context will not be preserved by the hardware. The system must be restarted to return to the Working state. It is not safe to disassemble the machine. G3 – Mechanical Off: This state is entered and left by a mechanical means.
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Software Functional Overview 3.5.5 Power States From a user-visible level, the system can be thought of as being one of the states in the following diagram: Power Failure G3 -Mech Off Modem HDD D3 D3 D2 D2 D1 D1 D0 D0 CDROM CPU D3 C3 D2 C2 D1 C1 C0 D0 C0 BIOS Routine S4 S3 S2 S1 G0 (S0) Working Legacy Wake Event G1 Sleeping G2 (S5) Soft Off 3.5.
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Software Functional Overview Power State S3 Entry Event OSPM control, Sleep Button, Lid Close S4 OSPM control, S5 OSPM control, Power Button Wake up Event Sleep button Ring Indicator Schedule Alarm Lid Open PME# Battery Low Sleep Button Ring Indicator Schedule Alarm OSPM: OS-directed Power Management 3.5.7 Lid Switch The function of the Lid Switch (Lid Cover) follows the ACPI Power Management Control Settings under Windows. 3.5.
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Software Functional Overview • • − The battery voltage is too high Battery Life average 2.5 Hours. Battery reading methodology is through M38867 SMBus. Note that the battery life is dependent on different configuration running. E.g. with CD-ROM battery life is shorter, document keyin only battery life is longer, PMU disable battery life is short, PMU enable battery life is longer. 3.6.4 Battery Low When the battery voltage is approaching to the Low level (8%), the M38867 will generate a battery low SMI.
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Software Functional Overview 3.7 PIC16C62A – uP 3.7.1 System Communication with PIC16C62A The micro controller PIC16C62A acts as a supplement for power management control. It supports many functions via SMBus interface. The system communicates with PIC16C62A via SMBus interface. The SMBus host (M38867) should be firstly initialized before starting the transaction. The following is the procedure for system communication with PIC16C62A: 1. Enable SMBus interface by writing 01h to SmbHstCfg register. 2.
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Software Functional Overview Command/Data 0x09 0x0A 0x0B 0x0C 0x0D Access read read read read read 0x0E read 0x0F 0x10 0x11 0x12 0x13 0x14 0x15 0x16 read read read read read read read read Unit byte byte byte byte word byte0 byte1 byte byte0 byte1 byte byte byte byte byte byte byte word byte0 0x17 read word byte0 byte1 0x18 read word byte0 byte1 0x19 read word byte0 byte1 Function Description Read primary battery DQ_PPD Read primary battery DQ_PPU Read primary battery DQ_VSB 2014 Read primar
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Software Functional Overview Command/Data 0x20/00 0x20/01 0x20/02 0x20/03 0x20/04 0x20/05 0x20/06 0x20/07 0x20/08 0x20/09 0x20/0A 0x20/0B 0x20/0C 0x20/0D 0x20/0E Access Unit 0x20/17 0x20/18 0x20/19 0x20/1A 0x20/1B 0x20/1C 0x21 0x22 0x23 0x24 write write write write 0x25 0x26 0x27 write write write byte byte byte word byte0 byte1 byte byte byte 0x20/0F 0x20/10 0x20/11 0x20/12 0x20/13 0x20/14 0x20/15 0x20/16 FIC A440 Series Service Manual Function Description NOP System suspend request System resume
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Software Functional Overview Command/Data 0x28 Access write Unit word byte0 byte1 0x29 0x2A 0x2B reserved write write word byte0 byte1 word byte0 byte1 3-32 Function Description First power on set LCD contrast, brightness level & for POST reset BAT_L, BAT_LL signal & LED Contrast Brightness Write data to primary battery BQ2010 command | 0x80 (set bit7) i.e. 83H:write NACH 84H:write BATID 85H:write LMD 8CH:write VTS 2014 only Data Write data to secondary battery BQ2010 command | 0x80 (set bit7) i.
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Software Functional Overview 3.8 Miscellaneous 3.8.1 Security The user may enter up to eight standard text characters for a password. The password includes two levels. The higher priority is the Supervisor Password. The lower priority is the User Password. The Supervisor Password can access all the system resource. Also, the User Password may not access the floppy disk when the Supervisor Password protects it.