I/O Controller 0.015A 128-Pin PQFP

The LPC47M192 is a 3.3V (Super I/O Block is 5V tolerant) PC99/PC2001 compliant Super I/O controller with an LPC interface and Hardware Monitoring capabilities The LPC47M192’s hardware monitoring capability includes voltage and temperature monitoring with the ability to alert the system of out-of-limit conditions. There are 7 analog inputs for monitoring external voltages of +1.5V, +1.8V, +2.5V, +3.3V, +5V, +12V and Vccp (core processor voltage), as well as internal monitoring of the devices own HVCC or HVSB. The LPC47M192 includes support for monitoring two external temperatures via thermal diode inputs and an internal sensor for measuring ambient temperature. The nTHERM pin is implemented to indicate out-of-limit temperature and voltage conditions. The block has an ability to output 20ms low pulse via nRESET pin. The hardware monitoring block of the LPC47M192 is accessible via the System Management Bus (SMBus) The LPC47M192 incorporates complete legacy Super I/O functionality including an 8042 based keyboard and mouse controller, an IEEE 1284, EPP, and ECP compatible parallel port, two serial ports that are 16C550A UART compatible, two IrDA 1.0 infrared ports, and a floppy disk controller with SMSC"s true CMOS 765B core and enhanced digital data separator, The true CMOS 765B core provides 100% compatibility with IBM PC/XT and PC/AT architectures and is software and register compatible with SMSC"s proprietary 82077AA core. System related functionality, which offers flexibility to the system designer, includes an MPU-401 MIDI interface, (37) General Purpose I/O control functions, control of two LED’s, a game port interface supporting two joysticks, and fan control using fan tachometer inputs and pulse width modulator, (PWM), outputs The LPC47M192 is ACPI 1.0/2.0 compatible and therefore supports multiple low power-down modes. It incorporates sophisticated power control circuitry (PCC) which includes support for keyboard and mouse wake-up events. The LPC47M192 supports the ISA Plug-and-Play Standard register set (Version 1.0a). The I/O Address, DMA Channel and hardware IRQ of each logical device in the LPC47M192 may be reprogrammed through the internal configuration registers. There are up to 480 (960 - Parallel Port) I/O address location options, a Serialized IRQ interface, and Three DMA channels. The LPC47M192 does not require any external filter components and is therefore easy to use and offers lower system costs and reduced board area.

• 3.3 Volt Operation (SIO Block is 5 Volt Tolerant)
• LPC Interface
• ACPI 1.0/2.0 Compliant
• Fan Control
  • Fan Speed Control Outputs (2)
  • Fan Tachometer Inputs (2)
• Programmable Wake-up Event Interface
• PC98, PC99, PC01 Compliant
• Dual Game Port Interface
• MPU-401 MIDI Support
• General Purpose Input/Output Pins (37)
• ISA Plug-and-Play Compatible Register Set
• Intelligent Auto Power Management
• System Management Interrupt
• 2.88MB Super I/O Floppy Disk Controller
  • Licensed CMOS 765B Floppy Disk
• Controller
  • Software and Register Compatible with
• SMSC"s Proprietary 82077AA
• Compatible Core
  • Supports Two Floppy Drives
  • Configurable Open Drain/Push-Pull Output
• Drivers
  • Supports Vertical Recording Format
  • 16-Byte Data FIFO
  • 100% IBM Compatibility
  • Detects All Overrun and Underrun
• Conditions
  • Sophisticated Power Control Circuitry (PCC)
• Including Multiple Powerdown Modes for
• Reduced Power Consumption
  • DMA Enable Logic
  • Data Rate and Drive Control Registers
  • 480 Address, Up to 15 IRQ and Three
• DMA Options
• Enhanced Digital Data Separator
  • 2 Mbps, 1 Mbps, 500 Kbps, 300 Kbps, 250
• Kbps Data Rates
  • Programmable Precompensation Modes
• Keyboard Controller
  • 8042 Software Compatible
  • 8 Bit Microcomputer
  • 2k Bytes of Program ROM
  • 256 Bytes of Data RAM
  • Four Open Drain Outputs Dedicated for
• Keyboard/Mouse Interface
  • Asynchronous Access to Two Data
• Registers and One Status Register
  • Supports Interrupt and Polling Access
  • 8 Bit Counter Timer
• Port 92 Support
  • Fast Gate A20 and KRESET Outputs
• Serial Ports
  • Two Full Function Serial Ports
  • High Speed 16C550A Compatible UARTs
• with Send/Receive 16-Byte FIFOs
  • Supports 230k and 460k Baud
• Programmable Baud Rate Generator
• Modem Control Circuitry
  • 480 Address and 15 IRQ Options
• Infrared Port
  • Multiprotocol Infrared Interface
  • IrDA 1.0 Compliant
  • SHARP ASK IR
  • 480 Addresses, Up to 15 IRQ
• Multi-Mode Parallel Port with ChiProtect
  • Standard Mode IBM PC/XT, PC/AT, and
• PS/2 Compatible Bi-directional 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
  • 960 Address, Up to 15 IRQ and Three DMA
• Options
• LPC Interface
  • Multiplexed Command, Address and Data
• Bus
  • Serial IRQ Interface Compatible with
• Serialized IRQ Support for PCI Systems
  • PME Interface
• Hardware Monitor
  • Monitor Power supplies (+2.5V, +3.3V, +5V,
• +12V, +1.8V, +1.5V, Vccp (processor
• voltage), and VCC or HVSB)
  • Remote Thermal Diode Sensing for Two
• External Temperature Measurements
  • Internal Ambient Temperature Measurement
  • Limit Comparison of all Monitored Values
  • System Management Bus (SMBus) Interface
  • AMI Keyboard BIOS ROM
  • 128 Pin QFP, 3.2mm footprint Package; green,
  • lead-free package also available