
SMSC DS – FDC37N958FR
Rev. 09/01/99
!
General Purpose I/O
-
22 I/O Pins
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12 Out Pins
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8 In Pins
!
Two Pulse Width Modulators
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Independent Clock Rates
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7 Bit Duty Cycle Granularity
!
Intelligent Auto Power Management
!
2.88MB Super I/O Floppy Disk Controller
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Relocatable to 480 Different Addresses
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13 IRQ Options
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4 DMA Options
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Open Drain / Push-Pull Configurable
Output Drivers
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Licensed CMOS 765B Floppy Disk
Controller
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Advanced Digital Data Separator
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Software and Register Compatible with
SMSC's Proprietary 82077AA Compatible
Core
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Sophisticated Power Control Circuitry
(PCC) Including Multiple Powerdown
Modes for Reduced Power Consumption
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Supports Two Floppy Drives Directly
-
24 mA AT Bus Drivers
-
Low Power CMOS Design
!
Floppy Disk Interface on Parallel Port
!
Licensed CMOS 765B Floppy Disk Controller
Core
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Supports Vertical Recording Format
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16 Byte Data FIFO
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100% IBM Compatibility
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Detects All Overrun and Underrun
Conditions
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48 mA Drivers and Schmitt Trigger Inputs
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DMA Enable Logic
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Data Rate and Drive Control Registers
IBM, PC/XT and PC/AT are registered trademarks and PS/2 is a trademark of International Business Machines Corporation.
SMSC is a registered trademark and Ultra I/O, ChiProtect, and Multi-Mode are trademarks of Standard Microsystems
Corporation
- Four Independent Hardware Driven Ports
!
Enhanced Digital Data Separator
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Low Cost Implementation
-
No Filter Components Required
-
2 Mbps, 1 Mbps, 500 Kbps, 300
Kbps, 250 Kbps Data Rates
-
Programmable Precompensation Modes
!
Multi-Mode
#
Parallel Port with ChiProtect
#
-
Relocatable to 480 Different Addresses
-
13 IRQ Options
-
4 DMA Options
-
Enhanced Mode
-
Standard Mode:
-
IBM PC/XT
, PC/AT
, and PS/2
#
Compatible Bidirectional Parallel Port
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Enhanced Parallel Port (EPP)
Compatible
-
EPP 1.7 and EPP 1.9 (IEEE 1284
Compliant)
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High Speed Mode
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Microsoft and Hewlett Packard
Extended Capabilities Port (ECP)
Compatible (IEEE 1284 Compliant)
-
Incorporates ChiProtect
#
Circuitry for
Protection Against Damage Due to
Printer Power-On
-
12 mA Output Drivers
!
Serial Ports
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Relocatable to 480 Different Addresses
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13 IRQ Options
-
Two High Speed NS16C550A
Compatible UARTs with Send/Receive 16
Byte FIFOs
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Programmable Baud Rate Generator
-
Modem Control Circuitry Including 230K
and 460K Baud
-
IrDA, HP-SIR, ASK-IR Support
ORDERING INFORMATION
Order Number: FDC37N958FRTQFP
208 Pin QFP/TQFP Package Options