LPC47B34X View Datasheet(PDF) - SMSC -> Microchip

Part Name

Description

Manufacturer

LPC47B34X

128 Pin Enhanced Super I/O with LPC Interface for Consumer Applications

SMSC -> Microchip 

LPC47B34x

128 Pin Enhanced Super I/O with LPC Interface

for Consumer Applications

FEATURES

• 3.3 Volt Operation (5V Tolerant)

• LPC Interface

• Floppy Disk Controller (Supports 2 FDCs)

• Multi-Mode Parallel Port

• Two Full UARTs

• 8042 Keyboard Controller (Internal Latch on

IRQ1 and IRQ12)

• Programmable Wakeup Event Interface

(nIO_PME Pin)

• SMI Pin

• GPIOs (62)

• ISA IRQ to Serial IRQ Conversion (11 Pins)

• WDT

• Security Register

• ACPI Support Register for Monitoring

System Sleep State and SMI Generation

• Intrusion Detection

• LED Control

• Low Battery Warning

• Battery Backup of Certain Wakeup Events

• XNOR Chain

• PC99 and ACPI 1.0 Compliant

• ISA Plug-and-Play Compatible Register Set

• Intelligent Auto Power Management

• 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

- 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 3 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

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