AMD Duron Uživatelský manuál stáhnout pdf (Strana 61)

Chapter 9 Pin Descriptions 49

23802E—September 2000 AMD Duron™ Processor Data Sheet

Preliminary Information

9.2 Pin List

Table 19 cross-references the Socket A pin location to the signal

name.

The “L” (Level) column shows the electrical specification for

this pin. “P” indicates a push-pull mode driven by a single

source. “O” indicates open-drain mode that allows devices to

share the pin.

Note: The Socket A AMD Duron processor supports push-pull

drivers. For more information, see “Push-Pull (PP) Drivers”

on page 6.

The “P” (Port) column indicates if this signal is an input (I),

output (O), or bidirectional (B) signal.

The “R” (Reference) column indicates if this clock-forwarded

signal should be referenced to the VSS (G) or VCC_CORE (P)

planes for the purpose of providing proper current return paths

for the signal routes. For more information, see the Motherboard

PGA Design Guide, order# 90009.

The Description column contains a cross-reference to a page

with more information in the “Detailed Pin Descriptions“

(which starts on page 57).

Table 19. Socket A Pin Cross-Reference by Pin Location

Pin Name Description L P R Pin Name Description L P R

A1 No Pin Page 60 - - - B2 VSS - - -

A3 SADDOUT[12]# P O G B4 VCC_CORE - - -

A5 SADDOUT[5]# P O G B6 VSS - - -

A7 SADDOUT[3]# P O G B8 VCC_CORE - - -

A9SDATA[55]# PBPB10VSS ---

A11SDATA[61]# PBPB12VCC_CORE ---

A13SDATA[53]# PBGB14VSS ---

A15 SDATA[63]# P B G B16 VCC_CORE - - -

A17 SDATA[62]# P B G B18 VSS - - -

A19 SCHECK[7]# Page 61 P B G B20 VCC_CORE - - -

A21SDATA[57]# PBGB22VSS ---

A23SDATA[39]# PBGB24VCC_CORE ---

1 2 ... 56 57 58 59 60 61 62 63 64 65 66 ... 83 84

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AMD Duron Uživatelský manuál Strana 61