Achronix Speedster22i User Macro Guide manuali

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Indice

Speedster22i

1

Macro Cell Library

1

Copyright Info

2

Table of Contents

3

Introduction

15

Cell Naming Conventions

16

Item Format Examples

17

Chapter 1 – I/O Cells

18

Bidirectional I/O Pad

19

Set/Reset

21

I/O Cells IOPAD_D

23

IOPAD_D2

26

Non-Registered Input Pad

30

I/O Cells IPAD_D2

36

IPAD_DIFF

37

IPAD_DIFFD

39

IPAD_DIFFD2

41

I/O Cells IPAD_DIFFD2

43

Non-Registered Output Pad

44

I/O Cells OPAD_D

47

I/O Cells OPAD_D2

50

OPAD_DIFF

52

OPAD_DIFFD

54

I/O Cells OPAD_DIFFD

55

OPAD_DIFFD2

57

I/O Cells OPAD_DIFFD2

58

I/O Cells TPAD_D

63

Chapter 2 – Registers

65

Synchronous Clear

69

Synchronous Preset

71

Inputs Output

74

Asynchronous/Synchronous Set

76

Chapter 3 – Logic Functions

99

VHDL Instantiation Template

100

Four Input Lookup Table

101

Parameters

101

Name Type Description

103

Chapter 6 – Memories

106

BRAM80K Pins

107

Memories BRAM80K

109

Read and Write Operations

115

Timing Diagrams

117

Memory Initialization

118

PAGE 102

119

PAGE 103

120

PAGE 104

121

PAGE 105

122

PAGE 106

123

PAGE 107

124

PAGE 108

125

PAGE 109

126

PAGE 110

127

PAGE 118

135

BRAM80KFIFO

136

Name Type

137

Description

137

Memories BRAM80KFIFO

139

PAGE 122

139

PAGE 123

140

PAGE 124

141

PAGE 125

142

PAGE 126

143

Selected Input for Write

144

Write Pointer Reset Use Model

144

PAGE 128

145

PAGE 129

146

PAGE 130

147

PAGE 131

148

PAGE 132

149

Read and Write Count Outputs

150

Status Flags

151

Flag Latency

152

Optional Output Register

153

FIFO Operational Modes

154

FIFO Operations

155

PAGE 140

157

BRAM80KECC

164

BRAM80KECC Pins

165

Memories BRAM80KECC

166

PAGE 149

166

PAGE 150

167

BRAM80KECC Modes of Operation

168

BRAM80KECCFIFO

170

LRAM640 Pins

174

Memories LRAM640

175

PAGE 158

175

LRAM640 Memory Initialization

176

LRAMFIFO

177

parameteris7’h04,

181

Write Error Flag

183

Read Error Flag

183

Chapter 7 – Multipliers

188

Inputs Outputs

189

BMACC56 Pins

190

Multipliers BMACC56

193

PAGE 176

193

PAGE 177

194

PAGE 178

195

PAGE 179

196

PAGE 180

197

PAGE 181

198

PAGE 182

199

BMULT28X28

200

Chapter 8 – Special Functions

201

ACX_DESERIALIZE

203

Speedster Macro Cell Library

204

PAGE 187

204

ACX_CLKGEN

205

ACX_CLKGEN Pins

206

Default

208

ACX_CLKGEN Components

211

Feedback Divider

212

Clock Feedback Selection

212

PLL Control

213

Serial Control Bus (SCB)

213

PAGE 197

214

PAGE 198

215

PAGE 199

216

PAGE 200

217

PAGE 201

218

PAGE 202

219

PAGE 203

220

PAGE 204

221

PAGE 206

223

Revision History

224

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