Toshiba Tecra A3-S711 Maintenance Manual page 20

1.2 System Unit
High Speed 16C550A Compatible UARTs with Send/Receive 16-Byte FIFO
Supports 230k and 460k Baud
Programmable Baud Rate Generator
Modem Control Circuitry
Infrared Communications Controller
IrDA v1.2 (4Mbps), HPSIR, ASKIR, Consumer IR Support
1 IR Ports
96 Base I/O Address, 15 IRQ Options and 3 DMA Options
Multi-Mode Parallel Port with ChiProtect
Standard Mode IBM PC/XT, PC/AT,
PS/2 Compatible Bidirectional Parallel Port
Enhanced Parallel Port (EPP)
Compatible – EPP 1.7 and EPP 1.9 (IEEE 1284 Compliant)
IEEE 1284 Compliant Enhanced Capabilities Port (ECP)
ChiProtect Circuitry for Protection Against Damage Due to Printer Power-On
192 Base I/O Address, 15 IRQ and 3 DMA Options
LPC Bus Host Interface
Multiplexed Command, Address and Data Bus
8-Bit I/O Transfers
8-Bit DMA Transfers
16-Bit Address Qualification
Serial IRQ Interface Compatible with Serialized Serial IRQ Interface Compatible
with Serialized IRQ Support for PCI Systems
PCI CLKRUN# Support
Power Management Event(IO_PME#)Interface Pin
? Keyboard controller
KB910L is use as keyboard controller and battery management unit
? Audio subsystem
Realtek ALC250VD for AC97 codec
Support of S'PDIF out is fully compliant with AC97 rev2.3 specification.
20-bit Stereo Digital-to-Analog Converters.
18-bit Stereo Analog-to-Digital Converters.
Built- in 7 Bands of Digital Hardware Equalizer for Optimizing Speaker Response.
Supports double sampling (96KHz) of DVD audio playback.
Two Analog Line- level Stereo Inputs with LIN_IN, CD, and AUX.
Two Analog Line- level Mono Inputs : PCBEEP, PHONE-IN.
Two software selectable Microphone Inputs.
High quality differential CD Input.
Power Management and enhanced power saving features.
Meets Microsoft® WHQL/WLP2.0 audio Requirements.
Tecra A3/S2 Series Maintenance Manual
1 Hardware Overview
1-11