CY7C68300B/CY7C68301B
CY7C68320/CY7C68321
Table 8-6. EEPROM Organization (continued)
EEPROM
Address
Required Suggested
Contents Contents
Field Name
Field Description
USB Bulk In Endpoint
0x45
0x46
0x47
0x48
0x49
0x4A
0x4B
bLength
Length of this descriptor in bytes.
Endpoint descriptor type.
0x07
0x05
bDescriptorType
bEndpointAddress
bmAttributes
This is an In endpoint, endpoint number 8.
This is a bulk endpoint.
0x88
0x02
wMaxPacketSize (LSB)
wMaxPacketSize (MSB)
bInterval
Max data transfer size. Automatically set by AT2 (Full speed
0x0040; High speed 0x0200)
0x00
0x02
High-speed interval for polling (maximum NAK rate). Set to
zero for full speed.
0x00
(Optional) HID Interface Descriptor
0x4C
0x4D
0x4E
0x4F
0x50
0x51
0x52
0x53
0x54
bLength
Length of HID interface descriptor
Interface descriptor type
Number of interfaces (2)
Alternate setting
0x09
0x04
0x02
0x00
0x01
0x03
0x00
0x00
0x00
bDescriptorTypes
bInterfaceNumber
bAlternateSetting
bNumEndpoints
bInterfaceClass
bInterfaceSubClass
bInterfaceSubSubClass
iInterface
Number of endpoints used by this interface
Class code
Sub class
sub sub class
Index of string descriptor
USB Interrupt In Endpoint
0x5E
0x5F
0x60
0x61
0x62
0x63
0x64
bLength
Length of this descriptor in bytes.
Endpoint descriptor type.
0x07
0x05
0x81
0x03
0x02
0x00
bDescriptorType
bEndpointAddress
bmAttributes
This is an In endpoint, endpoint number 1.
This is an interrupt endpoint.
Max data transfer size.
wMaxPacketSize (LSB)
wMaxPacketSize (MSB)
bInterval
Interval for polling (max. NAK rate).
0x10
(Optional) HID Descriptor
0x55
0x56
0x57
0x58
0x59
0x5A
0x5B
0x5C
0x5D
bLength
Length of HID descriptor
0x09
0x21
0x10
0x01
0x00
0x01
0x22
0x22
0x00
bDescriptorType
bcdHID (LSB)
Descriptor Type HID
HID Class Specification release number (1.10)
bcdHID (MSB)
bCountryCode
Country Code
bNumDescriptors
bDescriptorType
wDescriptorLength (LSB)
wDescriptorLength (MSB)
Number of class descriptors (1 report descriptor)
Descriptor Type
Length of HID report descriptor
Terminator Descriptors
0x65 Terminator
(Optional) HID Report Descriptor
0x00
0x66
0x67
0x68
Usage_Page
Vendor defined - FFA0
0x06
0xA0
0xFF
Document 38-08033 Rev. *D
Page 24 of 36
CYPRESS [ CYPRESS ]
