
CY7C68300
Document #: 38-08011 Rev. *B
Page 16 of 26
0x16
0x17
0x18
0x19
0x1A
0x1B
0x1C
bDeviceProtocol
bMaxPacketSize0
idVendor (LSB)
idVendor (MSB)
idProduct (LSB)
idProduct (MSB)
bcdDevice (LSB)
Device protocol.
USB packet size supported for default pipe.
Vendor ID. Cypress
’
s Vendor ID may only be used for evalu-
ation purposes, and not in released products.
0x00
0x40
0xB4
0x04
0x30
0x68
0x01
Product ID.
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.
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, hexidecimal characters) for each device.
Number of configurations supported.
0x1D
bcdDevice (MSB)
0x00
0x1E
iManufacturer
0x38
0x1F
iProduct
0x4E
0x20
iSerialNumber
0x64
0x21
Device Qualifier
0x22
0x23
0x24
0x25
0x26
0x27
0x28
0x29
0x2A
0x2B
High-speed Configuration Descriptor
0x2C
bLength
0x2D
bDescriptorType
0x2E
bTotalLength (LSB)
0x2F
bTotalLength (MSB)
bNumConfigurations
0x01
bLength
bDescriptor
bcdUSB (LSB)
bcdUSB (MSB)
bDeviceClass
bDeviceSubClass
bDeviceProtocol
bMaxPacketSize0
bNumConfigurations
bReserved
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.
USB packet size supported for default pipe.
Number of configurations supported.
Reserved for future use. Must be set to zero.
0x0A
0x06
0x00
0x02
0x00
0x00
0x00
0x40
0x01
0x00
Length of configuration descriptor in bytes.
Descriptor type.
Number of bytes returned in this configuration. This includes
the configuration descriptor plus all the interface and
endpoint descriptors.
Number of interfaces supported.
The value to use as an argument to Set Configuration to
select the configuration. This value must be set to 0x01.
Index to the configuration string. This entry must equal half
of the address value where the string starts or 0x00 if the
string does not exist.
0x09
0x02
0x20
0x00
0x30
0x31
bNumInterfaces
bConfiguration Value
0x01
0x01
0x32
iConfiguration
0x00
Table 5-6. EEPROM Organization
(continued)
EEPROM
Address
Field Name
Field Description
Required
Contents
Suggested
Contents