ISD-300A1 Cypress Semiconductor Corp, ISD-300A1 Datasheet - Page 20

• Manufacturer Part Number: ISD-300A1
• Description: IC USB 2.0 BRIDGE BULK 100LQFP
• Manufacturer: Cypress Semiconductor Corp

Specifications of ISD-300A1

• Applications: USB 2.0 to ATA/ATAPI Bridge
• Interface: ATA, ATAPI
• Voltage - Supply: 3 V ~ 3.6 V
• Package / Case: 100-LQFP
• Mounting Type: Surface Mount
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: 428-1459

October 19, 2001
0x10
0x11
0x12
0x13
0x14
0x15
0x16
0x17
0x18
0x19
0x1A
0x1B
0x1C
Address
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•
•
•
Descriptor Data Format
Standard Configuration
Other Speed Configuration
Interface
String
The ISD-300A1 supports two configurations, depending on the mode of operation. See the
VBUS_POWERED section on page 38 for more information.
Configuration bus-powered. This configuration descriptor is reported if the VBUS_POWERED
Configuration non-bus-powered. This configuration descriptor is reported if the
The ISD-300A1 supports two configurations, depending on the mode of operation. See the
VBUS_POWERED section on page 38 for more information.
Other Speed Configuration bus-powered. This configuration descriptor is reported if the
Other Speed Configuration non-bus-powered. This configuration descriptor is reported if the
The ISD-300A1 supports two interface descriptors, both FS (full speed) and HS (high speed), each
with four possible endpoints.
•
The ISD-300A1 supports a set of class and vendor-specific string descriptors. For more
information on strings, refer to the String Descriptors section on page 19 of this document.
Device Descriptor
There is only one device descriptor for each USB device. This descriptor gives USB information
about the ISD-300A1 device such as device class and device subclass, etc.
bLength
bDescriptor Type
bcdUSB (LSB)
bcdUSB (MSB)
bDeviceClass
bDeviceSubClass
bDeviceProtocol
bMaxPacketSize0
idVendor (LSB)
idVendor (MSB)
idProduct (LSB)
idProduct (MSB)
bcdDevice (LSB)
Endpoint
The ISD-300A1 supports the following endpoints:
Field Name
signal is set active, typically indicating more than 100 mA of current is sourced from
VBUS.
VBUS_POWERED input is set inactive, indicating the system is sourcing 100 mA or less
of current from VBUS (self powered system).
VBUS_POWERED signal is active.
VBUS_POWERED input is inactive.
Default Control endpoint. Accessible as endpoint 0.
Bulk Out endpoint. Accessible as endpoint 1.
Bulk In endpoint. Accessible as endpoint 2.
Interrupt endpoint. Accessible as endpoint 3.
Length of device descriptor in bytes.
Descriptor type.
USB Specification release number in BCD.
Device class.
Device subclass.
Device protocol.
USB packet size supported for default pipe.
Vendor ID.
Product ID.
Device release number in BCD LSB (product release number)
15
Description
ISD-300A1
On-board
Defaults
0xAB
0x6A
0x12
0x01
0x00
0x02
0xFF
0x00
0xFF
0x40
0x05
0x00
0x00