FDC37C78
Floppy Disk Controller
Features
 |
3.3 Volt/5 Volt Operation |
|
Intelligent Auto Power Management |
|
2.88MB FDC37C78 Floppy Disk Controller
 |
Licensed CMOS 765B Floppy Disk Controller |
|
Software and Register Compatible
with SMSC's 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 |
General Description
The SMSC FDC37C78 Floppy Disk Controller utilizes SMSC's proven
SuperCell™ technology for increased product reliability
and functionality. The FDC37C78 is optimized for motherboard
applications. The FDC37C78 supports both 1 Mbps and 2 Mbps
data rates and vertical recording operation at 1 Mbps Data
Rate.
The FDC37C78 incorporates SMSC's true CMOS 765B floppy disk
controller, advanced digital data separator, 16 byte data FIFO,
on-chip 12 mA bus drivers and two floppy direct drive support.
The true CMOS 765B core provides 100% compatibility with IBM
PC/XT and PC/AT architectures in addition to providing data
overflow and underflow protection. The SMSC advanced digital
data separator incorporates SMSC's patented data separator
technology, allowing for ease of testing and use.
The FDC37C78 incorporates sophisticated power control circuitry
(PCC). The PCC supports multiple low power down modes.
The FDC37C78 Floppy Disk Controller also incorporates Software
Configurable Logic (SCL) for ease of use. Use of the SCL feature
allows programmable system configuration of the key floppy
disk controller functions.
The FDC37C78 does not require any external filter components,
and is, therefore, easy to use and offers lower system cost
and reduced board area. The FDC37C78 is software and register
compatible with SMSC's proprietary 82077AA core.
 FDC37C78
Data Sheet, Application Notes,
Drivers and Design Tools
| Description |
File Name |
File Size |
Date |
 |
| FDC37C78 Data Sheet |
37c78.pdf |
340K |
2/16/07 |
| Evaluation Board |
EVB-37C78 |
|
|
|
| Reference Design
Files |
|
|
|
| ECP Production Test |
ecp300.zip |
57K |
4/29/99 |
| Reference Design |
ref37c78.pdf |
29K |
9/17/98 |
|
| Application Notes |
|
|
|
| Application Note 4-10: SMSC's Family of Super
I/O Solutions |
an410.pdf |
111K |
|
| Application Note 4-15: Microsoft WindowsNT
FLOPPY.SYS Update |
an415.pdf |
109K |
|
|
| Anomaly |
Contact your local SMSC representative |
| Using the Adobe™ Acrobat™ Reader |
aacrobat.html |
|
|
|
