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Errata Revision: *
C
August 16, 2005
Errata Document for CY7C68001 EZ-USB SX2™
Cypress Semiconductor Corporation • 3901 North First Street • San Jose • CA 95134 • 408-943-2600
Document #: 38-17011 Rev. *C August 16, 2005
This document describes the errata for the EZ-USB SX2/CY7C68001. Details include errata trigger conditions, available
workarounds, and silicon revision applicability. This document should be used to compare to the data sheet for this device to fully
describe the device functionality.
Please contact your local Cypress Sales Representative if you have further questions.
Part Numbers Affected
EZ-USB SX2 Qualification Status
Product status: In Production - Qual report 012406
EZ-USB SX2 Errata Summary
The following table defines the errata applicability to available EZ-USB SX2 family devices. An “X” indicates that the errata
pertains to the selected device.
Note: Errata titles are hyperlinked. Click on table entry to jump to description.
1. Reset Timing / Unknown Device
• PROBLEM DEFINITION
If during the power-on sequence, the SX2 is held in Reset for a long period, it may be recognized by the Host Controller as
an Unknown Device and be dropped off of USB.
• PARAMETERS AFFECTED
Reset Timing
• TRIGGER CONDITION(S)
Reset sequence.
• SCOPE OF IMPACT
In normal operation the SX2 will disconnect itself from USB after Reset, awaiting the command from the external master to
enumerate. If, however, the SX2 is held in Reset after power-on it will be halted from performing the actual disconnect. If left
connected by maintaining a reset condition too long, 5–10 seconds, dependant on Host conditions, the Host will identify the
SX2 as an Unknown Device. Note that per the USB 2.0 specification all devices must be capable of enumerating within 100 ms.
Device may appear as an Unknown Device and be dropped off of USB.
• WORKAROUND
Retain standard SX2 power-on Reset timing of 10 ms, either through an RC circuit, or via the external master.
•FIX STATUS
Will be fixed in the next revision of the silicon.
Part Number Device Characteristics
CY7C68001 All Packages
Items Part Number Rev E Fix Status
1. Reset Timing/Unknown Device CY7C68001 X Will be fixed in next revision
2. EP4, 6, 8 Packet Length Register, High
Byte, Read back error
CY7C68001 X Will be fixed in next revision
3. Get Status for a Device Always Reports Bus
Powered
CY7C68001 X Will be fixed in next revision
- AYO DE 2007 1
- PROYECTO FINAL DE CARRERA: 3
- Índice general 5
- 4 ÍNDICE GENERAL 6
- II Anexos 75 7
- 6 ÍNDICE GENERAL 8
- Capítulo 1 11
- Objetivo y alcance 11
- 1.2. Objetivos y alcances 12
- 1.3. Posibles ampliaciones 12
- 1.3. POSIBLES AMPLIACIONES 11 13
- Capítulo 2 15
- Estructura de la Memoria 15
- Capítulo 3 17
- 3.2. Definici ones previas 18
- Facilidad de uso 19
- 3.4. Componentes del bus 22
- 3.5. División de tar eas 22
- 3.8. Transferencias bulk 25
- Capítulo 4 27
- Descripción del kit 27
- Esquemas PCB 29
- Capítulo 5 31
- 5.2. REQUISITOS PREVIOS 31 33
- SIEMaster. Modo 1 B 37
- Capítulo 6 55
- 6.7. Conclus iones 72
- Capítulo 7 73
- Contenido del CD-ROM 73
- 7.2. Notas de aplicación 74
- Parte II 77
- Capítulo 8 79
- Manuales de referencia 79
- EZ-USB SX2 81
- Getting Started 81
- Development Kit Manual 81
- Page 2 Rev 2.0 86
- Page 4 Rev 2.0 88
- Page 6 Rev 2.0 90
- Page 8 Rev 2.0 92
- Page 10 Rev 2.0 94
- Page 12 Rev 2.0 96
- EP2 FIFO 97
- EP6 FIFO 97
- EP8 FIFO 97
- EP4 FIFO 97
- Page 14 Rev 2.0 98
- Page 16 Rev 2.0 100
- Flag.hex 101
- Page 18 Rev 2.0 102
- “Small” 16x8 000 24LC00 103
- 128x8 000 24LC01 103
- 256x8 000 24LC02 103
- “Large” 8Kx8 001 24LC64/5 103
- Page 20 Rev 2.0 104
- Table 5. P8 Pinout 105
- P8 Pinout 105
- Table 6. Pin 9 Pinout 106
- P9 Pinout 106
- Page 24 Rev 2.0 108
- 3901 North First Street 109
- San Jose, CA 95134-1599 109
- Cypress Disclaimer Agreement 110
- Table of Contents 111
- 1.0 Purpose 113
- 2.0 Hardware Setup 114
- 3.0 Using SIEMaster 115
- SX2 SIEMaster User’s Guide 116
- 3.2 Custom Enumeration 118
- 3.3 Monitor Interrupts 118
- 3.4 Read Register 118
- 3.5 Write Register 119
- 3.6 Read Setup 121
- 4.0 Summary 124
- CY7C6800 127
- CY3682 Design Notes 169
- August 16, 2005 181
- Part Numbers Affected 181
- EZ-USB SX2 Errata Summary 181
- References 182
- Document History Page 183
- Troubleshooting 192
- Capítulo 9 193
- Notas de aplicación 193
- Introduction 195
- Writing/Reading Registers 195
- FIFO Access 196
- Approved AN4050 7/13/04 kkv 197
- EZ-USB FX2™/AT2™/SX2™ 199
- Approved AN065 10/14/03 kkv 201
- Background 203
- Considerations with USB 2.0 203
- Solution 203
- Conclusion 203
- USB Signals 206
- Power and Ground 207
- Crystal or Oscillator 208
- Connection Scheme 209
- Important Considerations 211
- Connection Diagram 212
- Writing Commands to the SX2 213
- Reading Status from the SX2 214
- XScale™ DMA Interface 225
- CYPRESS SX2 227
- (CY7C68001) 227
- Intel XScale 227
- Bibliografía 239
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