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1.2 System Unit 1 Hardware Overview
• Serial Ports
• One Full Function Serial Port
• High Speed NS 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, and 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 Qualifiation
• 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
Audio subsystem
• Realtek ALC250 for AC97 codec
− AC 97 2.2 Compatible.
− Industry Leading Mixed Signal Technology.
− 20-bit Stereo Digital-to-Analog Converters.
− 18-bit Stereo Analog-to- Digital Converters.
− Sample Rate Converters.
− Four Analog Line-level Stereo Inputs for LIN_IN, CD, VIDEO, and AUX.
− Two Analog Line-level Mono Inputs for Modem and Internal PC Beep.
− Dual Stereo Line-level Outputs for LINE_OUT and ALT_LINE _OUT.
− Dual Microphone Inputs.
− High Quality Differential CD Input.
Satellite M30X Series Maintenance Manual 1-7