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SMSC Corporation - Desktop System Controller Hub

Numéro de référence SCH5617
Description Desktop System Controller Hub
Fabricant SMSC Corporation 
Logo SMSC Corporation 





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SCH5617 fiche technique
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SCH5617
Desktop System
Controller Hub with
Advanced, 8051µC-Based
Auto Fan Control
PRODUCT FEATURES
„ ACPI 2.0 Compliant
„ PC2001 Compliant
„ PECI Interface
„ Temperature Monitor
— Monitoring of up to Two Remote Thermal Diodes
— Supports temperature readings from -63 degrees to
+192 degrees
– Supports monitoring of discrete diodes (3904 type
diodes)
– Supports monitoring substrate diodes (65nm
processor diodes)
— 1/8th degree temperature resolution
— Internal Ambient Temperature Measurement
— Limit Comparison of all Monitored Values
„ PROCHOT_IN# Pin
— Mapped into Temperature monitoring interrupt
generation logic
— May be used to adjust fan control limits
— May be configured to force fans on full
„ PROCHOT_OUT Pin
„ Auto-Fan Control with ProcHot Features
— PWM (Pulse width Modulation) Outputs (3)
– Legacy PWM control dc fan outputs
— High Frequency PWM Options (15kHz up to 30kHz)
— 2 second delayed start-up for PWM outputs
— Fan Tachometer or Lock Rotor Inputs (3)
— Programmable linear automatic fan control based on
temperature (diode or PECI)
— Acoustic enhancement mode
— ProcHot pins modulate Tmin
— Fan PWM duty cycle is a function in linear mode of
multiple temperatures and ProcHot signals
— PWM Ramp Rate Closed Loop Control
„ Internal Ring Oscillator for VTR Powered Logic
„ Low Battery Warning
„ Programmable Wake-up Event Interface
„ 21 Dedicated Scratchpad registers
„ ISA Plug-and-Play Compatible Register Set
„ System Management Interrupt
„ 46 General Purpose Input/Output Pins
Data Brief
„ GLUE Logic
— Resume Reset Signal Generation
— Power Supply Turn On Circuitry
— Power Sequencing
— Power Good Output
— Power OK Signal Generation
— IDE Reset/Buffered PCI Reset Outputs
— Hard Drive Front Panel LED
— Power LED Control
— SMBus Isolation Logic
„ 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 Two Floppy Drives
— Configurational Open Drain/Push-Pull Output Drivers
— 100% IBM® Compatibility
— Detects All Overrun and Underrun Conditions
— Sophisticated Power Control Circuitry (PCC) Including
Multiple Powerdown Modes for Reduced Power
Consumption
— 480 Address, Up to Eight IRQ and Four DMA Options
— Enhanced Digital Data Separator
— 2 Mbps, 1 Mbps, 500 Kbps, 300 Kbps, 250 Kbps Data
Rates
— Programmable Pre compensation Modes
„ Keyboard Controller
— 8042 Software Compatible
— Four Open Drain Outputs Dedicated for
Keyboard/Mouse Interface
— Port 92 Support
— Fast Gate A20 and KRESET Outputs
„ Serial Ports
— Two Full Function Serial Ports
— High Speed NS16C550A Compatible UARTs with
Send/Receive 16-Byte FIFOs
— Supports 230k and 460k Baud
— Programmable Baud Rate Generator
— Modem Control Circuitry
— 480 Address and 15 IRQ Options
„ Infrared Port
— Multi protocol Infrared Interface
— IrDA 1.0 Compliant
— SHARP ASK IR
— 480 Addresses, Up to 15 IRQ
SMSC SCH5617
PRODUCT PREVIEW
Revision 0.5 (05-29-07)

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