LPC47B34X Datasheet, PDF (1/250 Pages) SMSC Corporation – 128 Pin Enhanced Super I/O with LPC Interface for Consumer Applications

LPC47B34x
128 Pin Enhanced Super I/O with LPC Interface
for Consumer Applications
FEATURES
• 3.3 Volt Operation (5V Tolerant)
• LPC Interface
• Floppy Disk Controller (Supports 2 FDCs)
• Multi-Mode Parallel Port
• Two Full UARTs
• 8042 Keyboard Controller (Internal Latch on
IRQ1 and IRQ12)
• Programmable Wakeup Event Interface
(nIO_PME Pin)
• SMI Pin
• GPIOs (62)
• ISA IRQ to Serial IRQ Conversion (11 Pins)
• WDT
• Security Register
• ACPI Support Register for Monitoring
System Sleep State and SMI Generation
• Intrusion Detection
• LED Control
• Low Battery Warning
• Battery Backup of Certain Wakeup Events
• XNOR Chain
• PC99 and ACPI 1.0 Compliant
• ISA Plug-and-Play Compatible Register Set
• Intelligent Auto Power Management
• 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
- 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 Powerdown
Modes for Reduced Power
Consumption
- DMA Enable Logic
- Data Rate and Drive Control Registers
- 480 Address, up to 15 IRQ and 3 DMA
Options
• Enhanced Digital Data Separator
- 2 Mbps, 1 Mbps, 500 Kbps, 300 Kbps,
250 Kbps Data Rates
- Programmable Precompensation
Modes
• Keyboard Controller
- 8042 Software Compatible
- 8-Bit Microcomputer
- 2k Bytes of Program ROM
- 256 Bytes of Data RAM
- Four Open Drain Outputs Dedicated for
Keyboard/Mouse Interface
- Asynchronous Access to Two Data
Registers and One Status Register
- Supports Interrupt and Polling Access
- 8-Bit Counter Timer
- Port 92 Support