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PC87391-VJG Datasheet(PDF) 3 Page - National Semiconductor (TI) |
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PC87391-VJG Datasheet(HTML) 3 Page - National Semiconductor (TI) |
3 / 148 page 3 Features (Continued) www.national.com • WATCHDOG Timer — Times out the system based on user-programmable time-out period — System power-down capability for power saving — User-defined trigger events to restart WATCHDOG — Optional routing of WATCHDOG output on IRQ and/or SMI lines • Strap Configuration — Base Address (BADDR) strap to determine the base address of the Index-Data register pair — Test strap to force the device into test mode (re- served for National Semiconductor use) — X-Bus straps (XCNF2-0) define the functionality of the X-Bus at reset Device-specific Information The following table shows the main features for each device in the PC87393 family. Function1 1. This datasheet contains notes that are device-specific. These notes can be found by searching for the specific device number. PC87391 PC87392 PC87393 PC87393F LPC System Interface Interrupt Serializer Musical Instrument Digital Interface (MIDI) Port $$ Game Port $$ X-Bus Extension $$ FWH Emulation $$$ PC99 and ACPI Compliant Wake-Up Control General-Purpose I/O (GPIO) Ports $ Floppy Disk Controller (FDC) IEEE 1284 compliant Parallel Port Serial Port 1 (SP1) Serial Port 2 with Fast Infrared (SP2 with FIR) WATCHDOG Timer |
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