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Achronix Speedster22i Configuration User Manual

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UG033, December 18, 2013

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Table of Contents

Copyright Info .................................................................................................... 2

Table of Contents .............................................................................................. 3

Overview ............................................................................................................ 4

Power-Up and Configuration Sequence .......................................................... 5

Device Power-Up ........................................................................................................................... 5

Read Non-Volatile Memories ......................................................................................................... 5

Clear Configuration Memory .......................................................................................................... 5

Bitstream Sync and Device ID ........................................................................................................ 6

Load Configuration Bits .................................................................................................................. 6

CRC Check .................................................................................................................................... 6

Startup Sequence .......................................................................................................................... 6

User Mode ..................................................................................................................................... 7

Configuration Modes and Pins ......................................................................... 8

CPU ....................................................................................................................................... 9

Serial x1 Flash ..................................................................................................................... 10

Serial x4 Flash ..................................................................................................................... 11

JTAG .................................................................................................................................... 13

Configuration Pins and Clock Selection ............................................................................... 14

Bitstream File Generation Through ACE ....................................................... 16

Design Security ............................................................................................... 18

Revision History .............................................................................................. 20