User Guide

Hardware Functional Overview
4-12 FIC A440 Series Service Manual
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1997 PC Card Standard Compliant
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PC99 Compliant
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3.3V Core Logic with Universal PCI Interfaces Compatible with 3.3V and 5V PCI
Signaling Environments
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Mix and Match 5V/3.3V 16-bit PC Cards and 3.3V CardBus Cards
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Supports Two PC Card or CardBus Slots with hot insertion and removal
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Uses serial interface to TI TPS2202/2206 Dual-Slot PC Card Power Switch
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Supports Burst Transfers to Maximize Data Throughput on the PCI Bus and CardBus Bus
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Supports Parallel PCI Interrupts, Parallel ISA IRQ and Parallel PCI Interrupts, Serial ISA
IRQ with Parallel PCI Interrupts, and Serial ISA IRQ and PCI Interrupts
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Serial EEPROM Interface for Loading Subsystem ID and Subsystem Vendor ID
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Pipelined Architecture allows greater than 130-MBps throughput from CardBus-to-PCI
and from PCI-to-CardBus
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Supports up to Five General-Purpose I/Os
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Programmable Output Select for CLKRUN
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Multifunction PCI Device with separate configuration space for each socket
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Five PCI Memory Windows and Two I/O Windows available for each R2 socket
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Two I/O Windows and Two Memory Windows available to each CardBus socket
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Exchange Card Architecture (ExCA) Compatible Registers are mapped in memory and
I/O Space
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Intel 82365Sl-DF Register Compatible
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Supports Distributed DMA (DDMA) and PC/PCI DMA
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Supports 16-bit DMA on both PC Card sockets
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Supports Ring Indicate, SUSPEND, PCI CLKRUN, and CardBus CCLKRUN
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LED Activity Pins
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Supports PCI Bus Lock (LOCK)
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Advanced Submicron, Low-Power CMOS Technology
4.13
4.134.13
4.13 Audio Subsystem
Audio SubsystemAudio Subsystem
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.
4.14
4.144.14
4.14 Keyboard and Pointing Device
Keyboard and Pointing Device Keyboard and Pointing Device
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 simultaneous use of both the internal and external
keyboard and PS/2 mouse.
The A440 Series 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 ALPS Touchpad pointing device