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 Floppy Disk Available on Parallel Port Pins (ACPI Product Features Compliant) 3.3 Volt Operation (5 Volt Tolerant) - Enhanced Digital Data Separator PC99, PC01, ACPI 1.0 Compliant - 2 Mbps, 1 Mbps, 500 Kbps, 300 Kbps, 250 LPC or ISA Interface Kbps Data Rates - SIO10N268 offers two modes of operation: - Programmable Precompensation Modes LPC Mode or ISA Mode. These modes are Serial Ports jumper selectable. - Four Full Function Serial Ports X-Bus Interface (LPC Mode Only) - High Speed NS16C550 Compatible UARTs - Three chip selects (2 I/O and 1 Memory) with Send/Receive 16-Byte FIFOs - 8-bit data transfers - Supports 230k and 460k Baud - Support for up to 2MB Flash - Programmable Baud Rate Generator - Interfaces with 3V memory devices - Modem Control Circuitry - Support for up to two external I/O compo- - 480 Address and 15 IRQ Options nents Infrared Communications Controller - Offers three modes of operation for I/O - IrDA v1.2 (4Mbps), HPSIR, ASKIR, Con- devices sumer IR Support - Provides FWH Emulation -2 IR Ports Serial IRQ Compatible with Serialized IRQ Sup- - 96 Base I/O Address, 15 IRQ, and 4 DMA port for PCI Systems Options Programmable Wake-up Event (PME) Interface Multi-Mode Parallel Port with ChiProtect (33) General Purpose Input/Output Pins - Standard Mode IBM PC/XT, PC/AT, and PS/2 System Management Interrupt Compatible Bi-directional Parallel Port 2.88MB Super I/O Floppy Disk Controller - Enhanced Parallel Port (EPP) Compatible - - Licensed CMOS 765B Floppy Disk Controller EPP 1.7 and EPP 1.9 (IEEE 1284 Compliant) - Software and Register Compatible with - EEE 1284 Compliant Enhanced Capabilities Microchip s Proprietary 82077AA Compatible Port (ECP) Core - ChiProtect Circuitry for Protection - Supports Two Floppy Drives Directly - 480 Address, Up to 15 IRQ, and Four DMA - Configurable Open Drain/Push-Pull Output Options Drivers Two LED Drivers with blinking options - Supports Vertical Recording Format Watch Dog Timer with optional output pin - 16-Byte Data FIFO 128-Pin VTQN RoHS Compliant package - 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 2004 - 2014 Microchip Technology Inc. DS00001819A-page 1SIO10N268 Description The SIO10N268 is a single chip I/O device that can be used on the ISA or LPC bus. Bus selection is accomplished as a jumper option. Offering the same part with two system busses enables easy migration from an ISA architecture to the LPC generation enabling the preservation of design techniques and BIOS. The SIO10N268 is a 3.3V operational (5.0V tolerant), PC 99/2001, and ACPI 1.0 compliant Super I/O Controller. This device includes Microchips true CMOS 765B floppy disk controller with advanced digital data separator and Microchips Multi-Mode parallel port with ChiProtect circuitry plus EPP and ECP support. The part also includes 33 GPIO pins, support for two LEDs with blinking option, and a WatchDog Timer (WDT) with optional output pin. The SIO10N268 includes (4) 16C550 compatible UARTs. One UART includes additional support for a Serial Infrared Interface that complies with IrDA v1.2 (Fast IR), HPSIR, and ASKIR formats, as well as Consumer IR. SIO10N268, when LPC Mode is selected, implements the LPC bus interface. In this mode, the X-Bus Interface is enabled to interface to external I/O devices that have an 8-bit data bus and to standard ISA memory devices, up to 2MB, which can serve as BIOS flash. SIO10N268, when ISA Mode is selected, supports the ISA Plug-and-Play Standard (Version 1.0a). The I/O Address, DMA Channel and Hardware IRQ of each device in the part may be reprogrammed through the internal configuration registers. TO OUR VALUED CUSTOMERS It is our intention to provide our valued customers with the best documentation possible to ensure successful use of your Microchip products. To this end, we will continue to improve our publications to better suit your needs. Our publications will be refined and enhanced as new volumes and updates are introduced. If you have any questions or comments regarding this publication, please contact the Marketing Communications Department via E-mail at docerrors microchip.com. We welcome your feedback. Most Current Data Sheet To obtain the most up-to-date version of this data sheet, please register at our Worldwide Web site at: