CY7C68300A Datasheet, PDF (17/26 Pages) Cypress Semiconductor – EZ-USB AT2 USB 2.0 to ATA/ATAPI Bridge

CY7C68300A
Table 5-6. EEPROM Organization (continued)
EEPROM
Address
Field Name
Field Description
Required Suggested
Contents Contents
0x33
bmAttributes
Device attributes for this configuration.
Bit Descriptions
7 Reserved. Must be set to 1.
6 Self-powered. Must be set to 1.
5 Remote wake-up. Must be set to 0.
4–0 Reserved. Must be set to 0.
0xC0
0x34
bMaxPower
Maximum power consumption for this configuration. Units
used are mA*2 (i.e., 0x31 = 98 mA, 0xF9 = 498 mA). 0x00
reported for self-powered devices.
0x00
High-speed Interface and Endpoint Descriptors
Interface Descriptor
0x35
bLength
Length of interface descriptor in bytes.
0x09
0x36
bDescriptorType
Descriptor type.
0x04
0x37
bInterfaceNumber
Interface number.
0x00
0x38
bAlternateSetting
Alternate setting.
0x00
0x39
bNumEndpoints
Number of endpoints.
0x02
0x3A
bInterfaceClass
Interface class.
0x08
0x3B
bInterfaceSubClass
Interface subclass.
0x06
0x3C
bInterfaceProtocol
Interface protocol.
0x50
0x3D
iInterface
Index to first interface string. This entry must equal half of the
address value where the string starts or 0x00 if the string does
not exist.
0x00
USB Bulk In Endpoint
0x3E
bLength
Length of this descriptor in bytes.
0x07
0x3F
bDescriptorType
Endpoint descriptor type.
0x05
0x40
bEndpointAddress
This is an In endpoint, endpoint number 8.
0x88
0x41
bmAttributes
This is a bulk endpoint.
0x02
0x42
wMaxPacketSize (LSB)
Max data transfer size.
0x00
0x43
wMaxPacketSize (MSB)
0x02
0x44
bInterval
HS interval for polling (max. NAK rate).
0x00
USB Bulk Out Endpoint
0x45
bLength
Length of this descriptor in bytes.
0x07
0x46
bDescriptorType
Endpoint descriptor type.
0x05
0x47
bEndpointAddress
This is an Out endpoint, endpoint number 2.
0x02
0x48
bmAttributes
This is a bulk endpoint.
0x02
0x49
wMaxPacketSize (LSB)
Max data transfer size.
0x00
0x4A
wMaxPacketSize (MSB)
0x02
0x4B
bInterval
HS interval for polling (max. NAK rate).
0x00
Full-speed Configuration Descriptor
0x4C
bLength
Length of configuration descriptor in bytes.
0x09
0x4D
bDescriptorType
Descriptor type.
0x02
0x4E
0x4F
bTotalLength (LSB)
bTotalLength (MSB)
Number of bytes returned in this configuration. This includes
the configuration descriptor plus all the interface and
endpoint descriptors.
0x20
0x00
0x50
bNumInterfaces
Number of interfaces supported.
0x01
0x51
bConfiguration Value
The value to use as an argument to Set Configuration to
select the configuration.
0x01
Document #: 38-08031 Rev. *B
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