PC87309 Datasheet | National Semiconductor

Description The PC87309 is a single-chip solution to the most monly used ISA, EISA and Micro Channel® peripherals in a pact, 100-pin VLJ packaging. This fully Plug and Play (Pn P) and PC97 patible chip conforms to the Plug and Play ISA Specification Version 1.0a, May 5, 1994, and meets specifications defined in the PC97 Hardware Design Guide. The PC87309 incorporates: a Floppy Disk Controller (FDC), a Mouse and Keyboard Controller (KBC), two enhanced UARTs, one of which is with Infrared (IR) support, a full IEEE 1284 parallel port and support for Power Management (PM). The chip also provides a separate configuration register set for each module. The Infrared (IR) interface plies with the HP-SIR and SHARP-IR standards, and supports all four basic protocols for Consumer Remote Control circuitry (RC-5, RC-6, NEC, RCA and RECS 80). For flexible UART and IR support, the PC87309 offers two operation modes: q Mode 1: Full-IR Mode UART1 works as UART; UART2 works as fully IRpliant device Mode 2: Two-UART Mode Either both UARTs work as UARTs, or UART1 works as UART and UART2 works as partially IR-pliant device, providing only IRRX and IRTX support q Outstanding Features q Full Super I/O functionality in pact, cost-effective 100-pin VLJ packaging PC97 pliant q PC87309 Block Diagram DMA IRQ Channels Floppy Drive Interface Data Handshake Plug and Play (Pn P) Floppy Disk Controller (FDC) (Logical Device 0) High Current Driver IEEE 1284 Parallel Port (Logical Device 1) µP Address Data and Control Serial Port with IR (UART2) (Logical Devices 2) Serial Port (UART1) (Logical Devices 3) Power Management (PM) Logic (Logical Device 4) Mouse and Keyboard Controller (KBC) (Logical Devices 5 & 6) Serial Infrared Serial Interface Control Data and Control Ports TRI-STATE® is a registered trademark of National Semiconductor Corporation. IBM®, Micro Channel®, PC-AT® and PS/2® are registered trademarks of International Business Machines Corporation. Microsoft® and Windows® are...