Acer 486 User Manual download pdf (Page 69)

Am486

Microprocessor PCI Customer Development Platform

B-1

Appendix B

Bill of Materials and Schematics

The bill of materials for the Am486 microprocessor PCI customer development

platform (CDP) begins on page B-2.

The actual schematics used to build the PCI CDP begin on page B-10.

1 2 ... 64 65 66 67 68 69 70 71 72 73 74 ... 109 110

Microprocessor 1
PCI Customer Development 1
Platform 1
Technical Support 3
WWW Support 3
Third-Party Support 3
Contents 5
List of Figures 8
List of Tables 9
Development Platform 11
About the Customer 11
Figure 0-1. PCI CDP Overview 12
Evaluation Board Features 13
DRAM Main Memory 14
Boot ROM and Flash Memory 14
Onboard L2 Cache 14
PC and DOS Compatibility 15
PC-Style Super I/O 15
Keyboard and Mouse Controller 15
Expansion Bus Support 16
Development Support 16
Form Factor 16
BIOS and Software 16
Documentation 17
Suggested Reference Material 18
Documentation Conventions 19
Chapter 1 21
Quick Start 21
Setting Up the PCI CDP 22
Installation Requirements 23
Board Installation 24
Starting from Diskette 26
Installation Troubleshooting 28
Chapter 2 31
Board Functional Description 31
Feature and Layout Diagrams 32
Microprocessor 33
HEX LEDs for Debug 34
Boot ROM Socket (x8) 34
1-Mbyte FLASH Memory (x16) 34
Figure 2-3. PCI CDP Layout 35
Jumper Functions 36
Board Restrictions 37
Board Features 37
Am486 Microprocessor (M14) 38
Paging Unit 40
4-Kbyte Serial EEPROM (C4) 44
PCI Bus (I7) 49
DRAM Main Memory (P7) 50
Boot ROM (C16) 51
(SA17 or SA18) 52
(A17 or A18) 52
(SA18) (SA17) 52
ISA Flash Memory (F20) 53
EIP Flash Memory (L21) 55
Real-Time Clock (G17) 57
ISA Bus Interface (A7) 58
Super I/O (C19) 58
Serial Ports (E23 and C23) 59
IrDA Interface (A19) 59
Parallel Port (A22) 60
Floppy Disk Drive (E20) 60
IDE Hard Drive (L4 and M4) 61
Keyboard (O1) 61
Mouse (M1) 61
Resistor Options 65
Appendix A 67
Default Settings 67
Appendix B 69
Board Bill of Materials (BOM) 70
Schematics 78
Am486 Microprocessor 79
PCI Customer 79
Enhanced Am486 80
(SOCKET1-PGA169) 80
Power Connector(s) 81
2345162345 81
FINALi M1489 INTERFACE 84
L2_CACHE.SCH 85
Am486 MICROPROCESSOR 85
SIMM SOCKET POPULATION CHART 86
DRAM 72-PIN SIMM SOCKETS 86
MICROPROCESSOR 87
EIP FLASH MEMORY CONTROLLER 87
EIP FLASH MEMORY ARRAY 88
PCI_CONN.SCH 89
IDSEL = AD21 91
Device #5 91
ENET2.SCH 92
LINK SPEED TX DATA RX DATA 92
Red Green Green 92
IDE HARD DISK 1 93
IDE HARD DISK 2 93
FINALi M1487 INTERFACE 94
Press Switch To Assert SMI 95
Press Switch To Assert NMI 95
Press Switch To Assert RESET 95
CLOCK GENERATOR 96
ISA_CONN.SCH 97
AMP 645169-3 97
PORT 680 100
ISA BUS FLASH MEMORY 101
CONNECTOR 102
SOCKET 1 104
Numerics 105

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Acer 486 User Manual Page 69

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