GENERAL DESCRIPTION

The SMSC FDC37N869 is a 5v/3.3v PC 99-compliant Super I/O Controller with Infrared support. The FDC37N869 utilizes SMSC’s proven SuperCell technology and is optimized for motherboard applications. The FDC37N869 incorporates SMSC’s true CMOS 765B floppy disk controller, advanced digital data separator, 16-byte data FIFO, two 16C550 compatible UARTs, one Multi-Mode parallel port with ChiProtect circuitry plus EPP and ECP support, game port chip select logic and one floppy direct drive support. The FDC37N869 does not require any external filter components, is easy to use and offers lower system cost and reduced board area. The FDC37N869 is software and register compatible with SMSC’s proprietary 82077AA core.

FEATURES

▪ PC 99 Compliant

▪ 5 Volt and 3.3 Volt Operation

▪ Intelligent Auto Power Management

▪ 16 Bit Address Qualification

▪ 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 One Floppy Drive Directly

- 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 Power-Down Modes for Reduced Power Consumption

- DMA Enable Logic

- Data Rate and Drive Control Registers

- Swap Drives A and B

- Non-Burst Mode DMA Option

- 48 Base I/O Address, 15 IRQ and 4 DMA Options

- Forceable Write Protect and Disk Change Controls

▪ Floppy Disk Available on Parallel Port Pins ACPI Compliant

▪ Enhanced Digital Data Separator

- 2Mbps, 1 Mbps, 500 Kbps, 300 Kbps, 250 Kbps Data Rates

- Programmable Precompensation Modes

▪ Serial Ports

- Two High Speed NS16C550 Compatible UARTs with Send/Receive 16 Byte FIFOs

- Supports 230k and 460k Baud

- Programmable Baud Rate Generator

- Modem Control Circuitry

▪ Infrared Communications Controller

- IrDA v1.1 (4Mbps), HPSIR, ASKIR, Consumer IR Support

- 2 IR Ports

- 96 Base I/O Address, 15 IRQ Options and 4 DMA Options

▪ 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)

- Enhanced Capabilities Port (ECP) Compatible (IEEE 1284 Compliant)

- Incorporates ChiProtect Circuitry for Protection Against Damage Due to Printer Power-On

- 192 Base I/O Address, 15 IRQ and 4 DMA Options

▪ Game Port Select Logic

- 48 Base I/O Addresses

▪ General Purpose Address Decoder

- 16-Byte Block Decode