CY7C68300C_09 Datasheet, PDF (26/41 Pages) Cypress Semiconductor – EZ-USB AT2LP™ USB 2.0 to ATA/ATAPI Bridge

CY7C68300C, CY7C68301C
CY7C68320C, CY7C68321C
Table 11. Configuration Data Organization (continued)
Byte
Address
Configuration
Item Name
Search ATA on VBUS
0x0F
Reserved
Device Descriptor
0x10
bLength
0x11
bDescriptor Type
0x12
bcdUSB (LSB)
0x13
bcdUSB (MSB)
0x14
bDeviceClass
Configuration
Item Description
Required
Contents
Bit 0
Search for ATA devices when VBUS returns. If this bit is set,
the ATA bus is searched for ATA devices every time
VBUS_ATA_ENABLE is asserted. This feature enables the
AT2LP to be used in designs where the drive may be physi-
cally removed (such as docking stations or port replicators).
0 = Search ATA bus on VBUS_ATA_ENABLE assertion
1 = No ATA bus search on VBUS_ATA_ENABLE assertion
Must be set to 0x00
0x00
Variable
Contents
Length of device descriptor in bytes
Descriptor type.
USB Specification release number in BCD
Device class
0x12
0x01
0x00
0x02
0x00
0x15
0x16
0x17
0x18
0x19
0x1A
0x1B
0x1C
0x1D
0x1E
bDeviceSubClass
bDeviceProtocol
bMaxPacketSize0
idVendor (LSB)
idVendor (MSB)
idProduct (LSB)
idProduct (MSB)
bcdDevice (LSB)
bcdDevice (MSB)
iManufacturer
Device subclass
Device protocol
USB packet size supported for default pipe
Vendor ID. Cypress’ Vendor ID may only be used for evalu-
ation purposes, and not in released products.
Product ID
0x00
0x00
0x40
Device release number in BCD LSB (product release
number)
Device release number in BCD MSB (silicon release
number)
Index to manufacturer string. This entry must equal half of
the address value where the string starts or 0x00 if the string
does not exist.
Your
Vendor ID
Your
Product ID
Your
release
number
0x53
0x1F
iProduct
0x20
iSerialNumber
0x21
bNumConfigurations
Device Qualifier
Index to product string. This entry must equal half of the
address value where the string starts or 0x00 if the string
does not exist.
Index to serial number string. This entry must equal half of
the address value where the string starts or 0x00 if the string
does not exist. The USB Mass Storage Class Bulk-Only
Transport Specification requires a unique serial number (in
upper case, hexadecimal characters) for each device.
Number of configurations supported
1 for mass storage: 2 for HID: 3 for CSM
0x69
0x75
0x03
0x22
0x23
0x24
0x25
0x26
0x27
0x28
bLength
bDescriptor
bcdUSB (LSB)
bcdUSB (MSB)
bDeviceClass
bDeviceSubClass
bDeviceProtocol
Length of device descriptor in bytes
Type Descriptor type
USB Specification release number in BCD
USB Specification release number in BCD
Device class
Device subclass
Device protocol
0x0A
0x06
0x00
0x02
0x00
0x00
0x00
Document 001-05809 Rev. *C
Page 26 of 41
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