Cypress CY7C656xx, EZ-USB HX2LP manual Interface Descriptor9,10, Endpoint Descriptor9,10

PRELIMINARYCY7C656xx

8.4Endpoint Descriptor

Byte	Full Speed	High Speed	Field Name	Description
0	0x07	0x07	bLength	7 Bytes
1	0x05	0x05	bDescriptorType	ENDPOINT_DESCRIPTOR
2	0x81	0x81	bEndpointAddress	IN Endpoint #1
3	0x03	0x03	bmAttributes	Interrupt
4,5	0x0001	0x0001	wMaxPacketSize	Maximum Packet Size
6	0xFF	0x0C	bInterval	Polling Rate

8.5Interface Descriptor[9,10]

Byte	Full Speed	High Speed	Field Name	Description
0	N/A	0x09	bLength	9 Bytes
1	N/A	0x04	bDescriptorType	INTERFACE_DESCRIPTOR
2	N/A	0x00	bInterfaceNumber	Interface Descriptor Index
3	N/A	0x01	bAlternateSetting	Alternate Setting for the Interface
4	N/A	0x01	bNumEndpoints	Number of Endpoints Defined
5	N/A	0x09	bInterfaceClass	Interface Class
6	N/A	0x00	bInterfaceSubClass	Interface Sub-Class
7	N/A	0x02	bInterfaceProtocol	Interface Protocol
8	N/A	0x00	bInterface	Interface String Index

8.6Endpoint Descriptor[9,10]

Byte	Full Speed	High Speed	Field Name	Description
0	N/A	0x07	bLength	7 Bytes
1	N/A	0x05	bDescriptorType	ENDPOINT_DESCRIPTOR
2	N/A	0x81	bEndpointAddress	IN Endpoint #1
3	N/A	0x03	bmAttributes	Interrupt
4,5	N/A	0x0001	wMaxPacketSize	Maximum Packet Size
6	N/A	0x0C	bInterval	Polling Rate

8.7	Device Qualifier Descriptor
Byte		Full Speed	High Speed	Field Name	Description
0		0x0A	0x0A	bLength	10 Bytes
1		0x06	0x06	bDescriptorType	DEVICE_QUALIFIER
2,3		0x0200	0x0200	bcdUSB
4		0x09	0x09	bDeviceClass
5		0x00	0x00	bDeviceSubClass
6		0x01[4]	0x00	bDeviceProtocol
		0x02[5]
7		0x40	0x40	bMaxPacketSize0
8		0x01	0x01	bNumConfigurations
9		0x00	0x00	bReserved
Note:

9.If CY7C65640B is configured for singled-TT only or CY7C65630 or CY7C65620 (from the external EEPROM), this descriptor is not present.

10. If connected at high-speed

Document #: 38-08037 Rev. *D Page 11 of 23