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CY4617 Dataheets PDF



Part Number CY4617
Manufacturers Cypress Semiconductor
Logo Cypress Semiconductor
Description ISD-300LP Low-Power USB 2.0 to ATA/ATAPI Bridge IC
Datasheet CY4617 DatasheetCY4617 Datasheet (PDF)

CY7C68310 ISD-300LP™ Low-Power USB 2.0 to ATA/ATAPI Bridge IC 1.0 Features • Fixed-function mass storage device–requires no firmware code • USB Mass Storage Class Bulk-Only specification-compliant (version 1.0) • USB 2.0-certified (TID# 40001426) • Integrated USB transceiver • High-speed (480-Mbit) and full-speed (12-Mbit) support • USB Suspend/Resume, Remote Wakeup support • Two power modes of operation–self-powered and USB buspowered • Low power consumption allows for bus-powered operation • .

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CY7C68310 ISD-300LP™ Low-Power USB 2.0 to ATA/ATAPI Bridge IC 1.0 Features • Fixed-function mass storage device–requires no firmware code • USB Mass Storage Class Bulk-Only specification-compliant (version 1.0) • USB 2.0-certified (TID# 40001426) • Integrated USB transceiver • High-speed (480-Mbit) and full-speed (12-Mbit) support • USB Suspend/Resume, Remote Wakeup support • Two power modes of operation–self-powered and USB buspowered • Low power consumption allows for bus-powered operation • VBUS-powered CF support • True USB portable HDD support • Compact 80-pin TQFP package with a Lead-Free option • ATA/ATAPI-6 specification-compliant–provides support for mass storage devices larger than 137GB • 5V tolerant inputs, 3.3V output drive • Flexible USB descriptor and configuration retrieval sources 2 • I C-compatible serial ROM interface • ATA interface using vendor-specific ATA command (FBh) implemented on ATAPI or ATA device • Default on-chip ROM contents for manufacturing/development • 2-Kbyte SRAM data buffer for ATA/ATAPI data transfers • ATA interface supports ATA PIO modes 0–4, UDMA modes 0–4 (multiword DMA not supported). ATA interface operation mode is automatically selected during device initialization or manually programmed with I2C-compatible configuration data • Automatic detection of either Master or Slave ATA/ATAPI devices • Mode Page 5 Support–increased support for formatting removable media devices • ATA Interrupt support for ATAPI devices–offers more robust ATA support across OS platforms • System event notification via Vendor-specific ATA command • Input pin for media cartridge detection or ejection request • USB bus state indications (Reset, FS/HS mode of operation, Suspend/Resume, Bus/Self-powered) • Three General Purpose I/O (GPIO) pins • Multiple LUNs supported within a single ATAPI device • ATA translation provides seamless ATA support with standard MSC drivers • Additional ATA command support provided by vendorspecific ATACBs (ATA command blocks utilizing the MSC Command Block Wrapper) • Provisions to share ATA bus with other hosts (e.g. USB/1394 dual device) • Manufacturing interconnect test support provided with vendor-specific USB commands: • Read/Write access to relevant ASIC pins • Manufacturing Interconnect Test Tools • Utilizes inexpensive 30-Mhz crystal for clock source. 1.1 Functional Block Diagram VBUS D+ D- OSC nEJECT SYSIRQ DRVPWRVLD DISKRDY GPIO Pins (3) nRESET Control LOWPWR CY7C68310 Control Logic nPWR500 VBUSPWRVLD VBUSPWRD ROM 256 Byte EEPROM SCL SDA EEPROM Interface Control 64 Byte RAM 2kByte FIFO Bulk ATA Interface Logic ATAEN ATA Control Figure 1-1. Block Diagram Cypress Semiconductor Corporation Document 38-08030 Rev. *H • 3901 North First Street • San Jose, CA 95134 • 408-943-2600 Revised June 28, 2004 16-bit Data 30MHz Xtal USB USB HS/FS Control Logic USB 2.0 Xcvr CY7C68310 2.0 Applications 3.0 Introduction The CY7C68310 implements a USB 2.0 bridge for all ATA/ATAPI-6 compliant mass storage devices, such as: • Hard drives, including small form factor drives (2.5”, 1.8”, and 1.0”) designed for portable consumer electronics applications • CD-ROM, CD-R/W • DVD-ROM, DVD-RAM, DVD-R/W • MP3 players • Compact flash • Microdrives • Tape drives • Personal video recorders. The CY7C68310 implements a bridge between one USB port and one ATA/ATAPI-based mass storage device port. This bridge adheres to the Mass Storage Class Bulk-Only Transport specification, version 1.0. The USB port of the CY7C68310 is connected to a host computer directly or via the downstream port of a USB hub. Host software issues commands and data to the CY7C68310 and receives status and data from the CY7C68310 using standard USB protocol. The ATA/ATAPI port of the CY7C68310 is connected to a mass storage device. A 2-Kbyte buffer maximizes ATA/ATAPI data transfer rates by minimizing losses due to device seek times. The ATA interface supports ATA PIO modes 0–4, and Ultra Mode DMA modes 0–4. The device initialization process is configurable, enabling the CY7C68310 to initialize most ATA/ATAPI devices without software intervention. The CY7C68310 can also be configured to allow software initialization of a device if initialization requirements are not supported by CY7C68310 algorithms. 2.1 • • • • Additional Resources CY4617 – CY7C68310 Mass Storage Reference Design Kit USB Specification version 2.0 ATA Attachment-6 with Packet Interface revision 3b USB Mass Storage Class Bulk-Only Transport specification, Rev. 1.0 4.0 4.1 Pin Assignments Pin Diagram DMARQ VDD33 DD3 VSS VDD25 DD15 DD0 DD2 DD12 DD14 DD13 DD11 DD4 DD10 VSS 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 VDD33 nDIOW nDIOR IORDY ATAPUEN nDMACK ATAIRQ DA1 VDD33 DA0 DA2 nCS0 nCS1 nPWR500 SCL SDA_nIMODE DISKRDY VBUSPWRD VBUSPWRVLD VDD25 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 40 39 38 37 36 35 34 33 32 31 VDD25 DD7 TMC2 TM.


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