Renesas mPD720231, Руководство пользователя

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μ
PD720231 4. USB Descriptor Information
R19UH0094EJ0100 Rev 1.00 Page 15 of 30
Mar 1, 2013
4.5.2
UASP mode (Super-/High-speed only)
4.5.2.1
Data-OUT
(1)
Endpoint Descriptor
Offset Field Size Value Description
0 bLength 1 07h Size of descriptor
1 bDescriptorType 1 05h Endpoint descriptor type
2 bEndpointAddress 1 01h Address: 1, Direction: OUT
3 bmAttributes 1 02h Endpoint’s attributes (Bulk)
4 wMaxPacketSize 2 0400h or
0200h
Maximum packet size
0400h: 1024 bytes in Super-speed mode.
0200h: 512 bytes in High-speed mode.
6 bInterval 1 00h Interval for polling endpoint for data transfers.
(2)
SuperSpeed Endpoint Companion Descriptor (Super-speed only)
Offset Field Size Value Description
0 bLength 1 06h Size of descriptor
1 bDescriptorType 1 30h SUPERSPEED_USB_ENDPOINT_COMPANION
descriptor type.
2 bMaxBurst 1 0Fh Max. burst = 16
3 bmAttributes 1 05h Max. stream = 32.
4 wBytesPerInterval 2 0000h
−
(3)
Pipe Usage Descriptor
Offset Field Size Value Description
0 bLength 1 04h Size of descriptor
1 bDescriptorType 1 24h Pipe Usage descriptor type.
2 bPipeID 1 04h Data-OUT pipe
3 Reserved 1 00h
−