PC87382 datasheet(23/72 Pages) NSC

Part #	PC87382

Description	LPC-to-LPC Switch for Docking Stations, with Fast Infrared Port, Serial Port and GPIOs

PDF	72 Pages

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Manufacturer	NSC [National Semiconductor (TI)]

Direct Link	http://www.national.com

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23 / 72 page

3.0 Device Architecture and Configuration (Continued)

Revision 1.2

www.national.com

Special Conﬁguration

The vendor-defined registers, starting at Index F0h, control function-specific parameters such as operation modes, power

saving modes, pin TRI-STATE, and non-standard extensions to generic functions.

3.2.5

Default Configuration Setup

In the event of a VDD Power-Up or Hardware reset, the PC87382 wakes up with the following default configuration setup:

— The conﬁguration base address is 2Eh or 164Eh, according to the BADDR strap pin value, as shown in Table 6 on

page 19.

— All logical devices are disabled.

— All multiplexed GPIO pins are conﬁgured to their respective default function. When conﬁgured as GPIO, they have

an internal static pull-up (default direction is input).

— The legacy devices (Serial Port and IR) are assigned with their legacy system resource allocation.

— National Semiconductor proprietary functions are not assigned with any default resources, and the default values of

their base addresses are all 00h.

See Section 2.2 on page 15 for more details on PC87382 reset sources and types.

PC87382 Datasheet(PDF) 23 Page - National Semiconductor (TI)