Toshiba H1 Series Data Book page 411

3.16.4 Descriptor RAM
This area stores descriptor that is defined in USB. Device, Config, Interface, Endpoint
and String descriptor must set to RAM by using following format.
Note 1: If String Descriptor is supported, set StringxLength area to size0. No support String Dedcriptor
is returned STALL.
Note 2: Config Descriptior refers to descriptor sample.
Note 3: Sequencer in UDC decides Config number, Interface number and Endpoint number. Therefore,
if supporting Endpoint number is small, assign address according as priority.
Note 4: This function become effective only case of store descriptor as RAM.
Note 5: RAM size is total 384 bytes.
Note 6: Possible timing in RD/WR of descriptor RAM is only before detect USB_RESET and processing
SET_DESCRIPTOR request. (Prohibit access except this timing.)
Writing must finish before connect to USB host and processing SET_DESCRIPTOR request.
SET_DESCRIPTOR request processes from INT_SETUP assert until access EOP register.
Device descriptor
Config 1 descriptor
(Interfaces, endpoints)
Config 2 descriptor
(Interfaces, ENDPOINT)
String0 length
String1 length
String2 length
String3 length
String0 descriptor
String1 descriptor
String2 descriptor
String3 descriptor
92CZ26A-408
18 bytes
Under 255 bytes
Under 255 bytes
1 byte
1 byte
1 byte
1 byte
Under 63 bytes
Under 63 bytes
Under 63 bytes
Under 63 bytes
TMP92CZ26A