Manuals / Cypress / Computer Equipment / Computer Hardware

Cypress CY7C68300C General PCB Layout Recommendations For USB Mass Storage Designs, Page 39 of

Models: CY7C68320C CY7C68300C CY7C68321C CY7C68301C

1 42

Download 42 pages 50.81 Kb

Page 39

Image 39

Image 39

Cypress CY7C68300C General PCB Layout Recommendations For USB Mass Storage Designs, Package Diagrams continued, Page 39 of

Contents

EZ-USB AT2LP USB 2.0 to ATA/ATAPI Bridge FeaturesBlock Diagram CY7C68300C/CY7C68301C CY7C68320C/CY7C68321C CY4615C EZ-USB AT2LP Reference Design Kit USB Specification version ApplicationsCY7C68300A Compatibility Introduction 56-pin SSOP EZ-USB AT2LPCY7C68300C CY7C68301C DD13 EZ-USB AT2LP CY7C68300C CY7C68301C 56-pin QFNENABLE RESET# 56-pin SSOP EZ-USB AT2LPCY7C68320C CY7C68321C DD15 EZ-USB AT2LP CY7C68320C CY7C68321C 56-pin QFNARESET# GPIO2 100-pin TQFP CY7C68320ACY7C68321A PU 10K USB D+ signal See “DPLUS, DMINUS” on pageUSB D-signal See “DPLUS, DMINUS” on page page CY7C68320C/CY7C68321C CY7C68300C/CY7C68301C VBUS detection See “VBUSATAENABLE” on Chip reset See “RESET#” on page XTALIN, XTALOUT “ATAPUEN” on pageDPLUS, DMINUS SCL, SDA USB High-Speed SYSIRQ LOWPWR# GPIO PinsATA Interface Pins DRVPWRVLD PWR500# VBUSATAENABLERESET# ATAPUEN HID Functions for Button Controls Functional OverviewATA Command Block ATACB Field Description Table 6. ATACB Field DescriptionsByte Field Name 5-12 Operating Modes Operational Mode Selection FlowFigure 10. Operational Mode Selection Flow Normal Mass Storage Mode Bulk-Only Transport Specification . There is a vendor-specificTable 7. Command Block Wrapper Fused Memory Data MfgCB Figure 11. Snapshot of ‘AT2LP Blaster’ Utility EEPROM Organization length. This allows the CY7C68300C/CY7C68301C to work Enable a delay of up to 120 ms at each read of the DRQ bitwhere the device data length does not match the host data “Functional Overview” on page 15 for more detail on how Determines if the AT2LP is to do an SRST reset during drive returned on bits 2, 1, and 0 of EP1IN. This bit must be set to CY7C68300C/CY7C68301C CY7C68320C/CY7C68321C does not exist. The USB Mass Storage Class Bulk-Only Configuration Interface Descriptor USB Bulk Out EndpointUSB Bulk In Endpoint Terminator Page 29 of Number of the channel, must be a zero based value that is Descriptor-Index 0 LANGID CY7C68300C/CY7C68301C CY7C68320C/CY7C68321C unique serial Descriptor-Serial Number LOADCONFIGDATA bmRequestType Table 12.EEPROM-related Vendor-specific CommandsREADCONFIGDATA Label DC Characteristics Absolute Maximum RatingsOperating Conditions USB Transceiver Characteristics AC Electrical CharacteristicsOrdering Information ATA Timing Characteristics Figure 12. 100-Pin Thin Plastic Quad Flatpack 14 x 20 x 1.4 mm A101 Package Diagrams Figure 13. 56-lead Shrunk Small Outline Package Package Diagrams continued General PCB Layout Recommendations For USB Mass Storage Designs Figure 14. 56-Lead QFN 8 x 8 mm LF56APage 39 of Quad Flat Package No Leads QFN Package Design Notes Other Design ConsiderationsPCB Material Disclaimers, Trademarks, and Copyrights IDE Removable Media DevicesDevices With Small Buffers ECN NO Document History PagedIssue Date Document Number