SIO10N268 Datasheet, PDF (1/251 Pages) SMSC Corporation – Advenced Notebook I/O for ISA or LPC Designs with X-Bus Interface for I/O, Memory, and FWH Emulation and Four Srial Ports

Product Features
• 3.3 Volt Operation (5 Volt Tolerant)
• PC99, PC01, ACPI 1.0 Compliant
• LPC or ISA Interface
- SIO10N268 offers two modes of operation: LPC
Mode or ISA Mode. These modes are jumper
selectable.
• X-Bus Interface (LPC Mode Only)
- Three chip selects (2 I/O and 1 Memory)
- 8-bit data transfers
- Support for up to 2MB Flash
- Interfaces with 3V memory devices
- Support for up to two external I/O components
- Offers three modes of operation for I/O devices
- Provides FWH Emulation
• Serial IRQ Compatible with Serialized IRQ
Support for PCI Systems
• Programmable Wake-up Event (PME) Interface
• (33) General Purpose Input/Output Pins
• System Management Interrupt
• 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 Directly
- 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 Power Down Modes for Reduced
Power Consumption
- DMA Enable Logic
- Data Rate and Drive Control Registers
- 480 Address, Up to 15 IRQ and Four DMA Options
SIO10N268
Advanced Notebook I/O
for ISA or LPC Designs
with X-Bus Interface for
I/O, Memory, and FWH
Emulation and Four Serial
Ports
Datasheet
• Floppy Disk Available on Parallel Port Pins (ACPI
Compliant)
- Enhanced Digital Data Separator
- 2 Mbps, 1 Mbps, 500 Kbps, 300 Kbps, 250 Kbps
Data Rates
- Programmable Precompensation Modes
• Serial Ports
- Four Full Function Serial Ports
- High Speed NS16C550 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 Communications Controller
- IrDA v1.2 (4Mbps), HPSIR, ASKIR, Consumer IR
Support
- 2 IR Ports
- 96 Base I/O Address, 15 IRQ, and 4 DMA Options
• Multi-Mode Parallel Port with ChiProtect
- Standard Mode IBM PC/XT, PC/AT, and PS/2
Compatible Bi-directional Parallel Port
- Enhanced Parallel Port (EPP) Compatible - EPP 1.7
and EPP 1.9 (IEEE 1284 Compliant)
- IEEE 1284 Compliant Enhanced Capabilities Port
(ECP)
- ChiProtect Circuitry for Protection
- 480 Address, Up to 15 IRQ, and Four DMA Options
• Two LED Drivers with blinking options
• Watch Dog Timer with optional output pin
• 128 Pin TQFP package, VTQN package (green,
lead-free)
SMSC SIO10N268
Page 1
DATASHEET
Rev. 0.5 (03-24-05)