Adaptec AHA-1744 manuels

Adaptec AHA-1744 Guide d'installation (191 pages)

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Table des matières

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1

Copyright

2

Trademarks

2

FCC Compliance Statement

3

Table of Contents

5

Chapter Three - Installation

6

Chapter Nine - SCSI Features

9

Conventions

12

Introduction

13

EISA Features

14

SCSI Features

14

Board Features

15

Product Specifications

17

SCSI Interface

18

Output Signals

19

Input Signals

19

Internal Connector

19

External Connector

20

Floppy Disk Interface

21

Radiation Immunity

21

Reference Documents

21

Architecture

23

Bus Master DMA

24

• BIOS decode logic

25

Standard Mode Firmware

27

Command Control Block

28

Command Descriptor Block

29

Principles of Operation

30

Task Queuing

30

Enhanced Mode Firmware

31

Command Word 00

32

Onboard BIOS Operation

33

Power-Up Diagnostics

33

Installation

37

Preparation

38

Termination

39

SCSI Addressing (ID)

39

Hardware Installation

40

SCSI Parity

40

ASSY46806-00

41

System Configuration

43

!adp0000.cfg

44

!adp0001.cfg

44

!adp0002.cfg

44

!adp0400.cfg

44

MCS Configuration

45

If deselected

47

by the peripheral device

47

ADL Utility

51

ADL Operation

52

• Download Firmware

53

• Firmware Information

53

• Low-Level Format

53

Low-level Format

54

Chapter Four

55

Port Address = Base + 0

56

Port Address = Base + 1

56

Port Address = Base+ 2

56

Control and Status Port

57

Interrupt Flag Port

60

Reset Functions

62

SCSI Reset Operations

63

SCSI Soft Reset Option

63

EISA Expansion Identifiers

64

• Board ID registers

65

• Configuration registers

65

• BIOS EPROM

65

BIOS Control

67

Reserved Registers

71

Mailbox Registers

75

Attention (ATTN, zCD4, W/R)

76

Diskette Registers

77

DRATESEL Data Rate Select

80

SCSI Configuration

81

the data re

84

Chapter Five

87

value. The

97

Mailbox Overview

100

Mailbox Out Definition

101

Mailbox In Definition

103

AHA-1740A/1742A/1744

104

Command Block Definition

106

Byte 2: SCSI Command Length

110

Bytes 4, 5, 6: Data Length

111

Bytes 7, 8, 9 : Data Pointer

111

Byte 13 : Command Link ID

112

Byte 14 : Host Status

112

Byte 15: Target Status

113

Byte 16: Reserved (must be 0)

113

Byte 17: Reserved (must be 0)

113

Description of Operation

115

Interrupt Initialization

118

Chapter Six

121

Control Block

123

Flag Word 2

126

Status Block Pointer

131

Status Block

133

Status Word

134

Host Adapter Status

137

Target Status

137

Residual Byte Count

138

Residual Buffer Address

138

Control Block Commands

139

Download Firmware

141

Supported Options

142

Initialize SCSI Subsystem

143

SCSI Device 0 (MSB)

144

Initiator SCSI Command

146

No Operation

147

0 Options 000000001010 00

149

SCSI Device Type 00

151

Read Sense Information

154

Run Diagnostic Test

156

Target SCSI Command

158

Asynchronous Event Conditions

161

SCSI Bus Reset

161

Immediate Commands

162

• Reset (80h)

163

• Resume (90h)

163

Code Description

164

08 Firmware not downloaded

164

11 Selection timeout

164

Reset Host Adapter

165

SCSI Bus Reset Handling

166

Onboard BIOS Interface

169

Enhanced Interface Operation

170

Other Changes

172

Boot Issues

172

BIOS Command Return Codes

174

Hardware BIOS Commands

175

Int 15h Functionality

177

Multiple Adapter Support

178

Memory Cycle Timing Diagram

179

EISA Access

180

Parameter Table

180

Connector Pinout

181

AHA-1744 (Differential)

182

Register Reference

185

Local Control Registers

186

EISA Free-Form Data

189

STOCK NO.: 510208-00

191

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