General Description
The SMSC LPC47N217 is a 3.3V PC 99, PC2001, and ACPI 2.0 compliant Super I/O Controller. The
LPC47N217 implements the LPC interface, a pin reduced ISA interface which provides the same or better
performance as the ISA/X-bus with a substantial savings in pins used. The part also includes 14 GPIO
pins.
The LPC47N217 incorporates a 16C550A compatible UART and one Multi-Mode parallel port with
ChiProtect circuitry plus EPP and ECP support. This device also offers a full 16-bit internally decoded
address bus, a Serial IRQ interface with PCI CLKRUN# support, relocatable configuration ports, and three
DMA channel options.
The on-chip UART is compatible with the 16C550A. There is a dedicated Serial Infrared interface UART,
which complies with IrDA v1.2 (Fast IR), HPSIR, and ASKIR formats (used by Sharp and other PDAs), as
well as Consumer IR.
The parallel port is compatible with IBM PC/AT architectures, as well as IEEE 1284 EPP and ECP. The
parallel port ChiProtect circuitry prevents damage caused by an attached powered printer when the
LPC47N217 is not powered.
The LPC47N217 features Software Configurable Logic (SCL) for ease of use. SCL allows programmable
system configuration of key functions such as the parallel port and UART.
The LPC47N217 supports the ISA Plug-and-Play Standard register set (Version 1.0a) and provides the
recommended functionality to support Windows operating systems, PC99, and PC2001. The I/O Address,
DMA Channel, and Hardware IRQ of each device in the LPC47N217 may be reprogrammed through the
internal configuration registers. There are multiple I/O address location options, a Serialized IRQ interface,
and three DMA channels.
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 ChiProtect, SuperCell, and Multi-Mode are trademarks of Standard Microsystems Corporation.
SMSC LPC47N217
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Revision 06-10-03
PRODUCT PREVIEW
SMSC [ SMSC CORPORATION ]
