GENERAL DESCRIPTION

The SMSC FDC37C78 Floppy Disk Controller utilizes SMSCs proven SuperCell technology for increased product reliability and functionality. The FDC37C78 optimized for motherboard applications. The FDC37C78 supports both 1 Mbps and 2 Mbps data rates and vertical vertical recording operation at 1 Mbps Data Rate.

FEATURES

• 3.3/5 Volt Operation

• Intelligent Auto Power Management

• 2.88MB FDC37C78 Floppy Disk Controller

- Licensed CMOS 765B Floppy Disk Controller

- Software and Register Compatible with SMSCs Proprietary 82077AA Compatible Core

- Supports Two Floppy Drives Directly

- Supports Vertical Recording Format

- 16 Byte Data FIFO

- 100 IBM Compatibility

- DMA Enable Logic

- Data Rate and Drive Control Registers

- Swap Drives A and B

- Non-Burst Mode DMA Option

- Detects All Overrun and Underrun Conditions

- Sophisticated Power Control Circuitry (PCC) Including Multiple Powerdown Modes for Reduced Power Consumption

• Enhanced Digital Data Separator

- 2 Mbps (Only Available When VCC = 5V), 1 Mbps, 500 Kbps, 300 Kbps, 250 Kbps Data Rates

- Programmable Precompensation Modes

• 48 pin TQFP Package