CY7C68310 Datasheet, PDF (1/34 Pages) Cypress Semiconductor – ISD-300LP™ Low-Power USB 2.0 to ATA/ATAPI Bridge IC

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 bus-
powered
• Low power consumption allows for bus-powered opera-
tion
• 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
• I²C-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/devel-
opment
• 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 oper-
ation, 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 vendor-
specific 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
USB HS/FS
Control Logic
USB
2.0
Xcvr
VBUS
D+
D-
nEJECT
SYSIRQ
DRVPWRVLD
DISKRDY
GPIO Pins (3)
CY7C68310
Control Logic
OSC
LOWPWR
nPWR500
VBUSPWRVLD
VBUSPWRD
nRESET
SCL
SDA
ROM
EEPROM
Interface
Control
64 Byte
RAM
2kByte FIFO
ATA Interface Logic
ATAEN
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