CM6502B Datasheet, PDF (26/40 Pages) C-Media Electronics – USB Audio Sound Chip

CM6502 / CM6502B
USB Audio Sound Chip
7.4.3 HID Set_Output_report
Command Format:
bmRequestType bRequest
wValue
wIndex
8’h 21
8’h 09
(Set_Report)
16’h 02 01
(Rpt Type + Rpt
ID)
16’h 00 03
(Interface)
*Note: Byte5 is the beginning address of this write sequence.
wLength Data
16’h 00 10
(16 bytes)
Report
Output Data Format:
byte 0
byte1
byte2
byte3
byte4
byte5
byte6
byte7
byte8
byte9
byte10
byte11
byte12
byte13
byte14
byte15
always 1 for org HID event report ID
start address of write reg (H-start_addr)
start address of write reg (L-start_addr)
effective write/read data length (<=12)
write data to [start_addr]
write data to [start_addr+1]
write data to [start_addr+2]
write data to [start_addr+3]
write data to [start_addr+4]
write data to [start_addr+5]
write data to [start_addr+6]
write data to [start_addr+7]
write data to [start_addr+8]
write data to [start_addr+9]
write data to [start_addr+10]
write data to [start_addr+11]
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