STPCCLIENT datasheet(11/48 Pages) STMICROELECTRONICS

11 / 48 page

PIN DESCRIPTION

Issue 1.7 - February 8, 2000

11/48

2.PIN DESCRIPTION

2.1. INTRODUCTION

The STPC Client integrates most of the functional-

ities of the PC architecture. As a result, many of

the traditional interconnections between the host

PC microprocessor and the peripheral devices are

totally assimilated to the STPC Client. This offers

improved performance due to the tight coupling of

the processor core and its peripherals. As a result

many of the external pin connections are made di-

rectly to the on-chip peripheral functions.

Figure 2-1 shows the STPC Client’s external inter-

faces. It defines the main busses and their func-

tion. Table 2-1 describes the physical implementa-

tion listing signals type and their functionality. Ta-

ble 2-2 provides a full pin listing and description of

the pins. Table 2-3 provides a full listing of pin lo-

cations of the STPC Client package by physical

connection. Please refer to the pin allocation

drawing for reference.

Note: Several interface pins are multiplexed with

other functions, refer to the Pin Description sec-

tion for further details

Table 2-1. Signal Description

Group name

Qty

Basic Clocks reset & Xtal (SYS)

Memory Interface (DRAM)

PCI interface (excluding VDD5)

ISA / IDE / IPC combined interface

Video Input (VIP)

TV Output (TV)

VGA Monitor interface (VGA)

Grounds

VDD

Analog specific VCC/VDD

Reserved/Test/ Misc./ Speaker

Total Pin Count

388

Figure 2-1. STPC Client External Interfaces

SOUTH

NORTH

PCI

X86

DRAM

VGA

VIP

SYS

ISA/IDE

IPC

STPC CLIENT

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