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CY7C68310_05 Datasheet, PDF (1/34 Pages) Cypress Semiconductor – ISD-300LP™ Low-Power USB 2.0 to ATA/ATAPI Bridge IC | |||
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This part is not recommended for new designs
Use CY7C68300B EZ-USB AT2LP⢠USB2.0 to ATA/ATAPI
Bridge for new designs
CY7C68310
ISD-300LP⢠Low-Power USB 2.0 to ATA/ATAPI Bridge IC
1.0 Features
⢠Fixed-function mass storage deviceârequires no firmware
code
⢠USB Mass Storage Class Bulk-Only specification-compliant
(version 1.0)
⢠USB 2.0-certified (TID# 40001426)
â Integrated USB transceiver
â High-speed (480-Mbit) and full-speed (12-Mbit) support
â USB Suspend/Resume, Remote Wakeup support
⢠Two power modes of operationâself-powered and USB
bus-powered
â Low power consumption allows for bus-powered opera-
tion
â VBUS-powered CF support
â True USB portable HDD support
⢠Compact 80-pin TQFP package with a Lead-Free option
⢠ATA/ATAPI-6 specification-compliantâprovides support for
mass storage devices larger than 137GB
⢠5V tolerant inputs, 3.3V output drive
⢠Flexible USB descriptor and configuration retrieval sources
â I2C-compatible serial ROM interface
â ATA interface using vendor-specific ATA command (FBh)
implemented on ATAPI or ATA device
â 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 0â4, UDMA modes
0â4 (multiword DMA not supported). ATA interface opera-
tion mode is automatically selected during device initializa-
tion or manually programmed with I2C-compatible configu-
ration data
⢠Automatic detection of either Master or Slave ATA/ATAPI
devices
⢠Mode Page 5 Supportâincreased support for formatting
removable media devices
⢠ATA Interrupt support for ATAPI devicesâoffers more ro-
bust ATA support across OS platforms
⢠System event notification via Vendor-specific ATA com-
mand
â Input pin for media cartridge detection or ejection request
â 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 stan-
dard MSC drivers
⢠Additional ATA command support provided by vendor-spe-
cific ATACBs (ATA command blocks utilizing the MSC Com-
mand Block Wrapper)
⢠Provisions to share ATA bus with other hosts (e.g.,
USB/1394 dual device)
⢠Manufacturing interconnect test support provided with ven-
dor-specific USB commands:
â Read/Write access to relevant ASIC pins
â Manufacturing Interconnect Test Tools
⢠Utilizes inexpensive 30-MHz crystal for clock source.
1.1 Functional Block Diagram
USB HS/FS
Control Logic
nEJECT
SYSIRQ
DRVPWRVLD
DISKRDY
GPIO Pins (3)
CY7C68310
Control Logic
USB
2.0
Xcvr
VBUS
D+
D-
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. *J
⢠3901 North First Street
⢠San Jose, CA 95134 ⢠408-943-2600
Revised September 15, 2005
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