CM6502B Datasheet, PDF (24/40 Pages) C-Media Electronics – USB Audio Sound Chip

CM6502 / CM6502B
USB Audio Sound Chip
7.4 HID Function
7.4.1 HID interrupt in
Input 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
for defined HID event, and each event occupies one bit
start address of returned data (H-start_addr)
start address of returned data (L-start_addr)
bit7
bit6:UART_INT
bit5:GPI_INT
bit4:SPIS_INT(slavemode int)
bit3: SPIM_INT(mastermode int)
bit2:I2CS_INT(slavemode int)
bit1:I2CM_INT(mastermode int)
bit0: IR_INT
read data of [start_addr]
read data of [start_addr+1]
read data of [start_addr+2]
read data of [start_addr+3]
read data of [start_addr+4]
read data of [start_addr+5]
read data of [start_addr+6]
read data of [start_addr+7]
read data of [start_addr+8]
read data of [start_addr+9]
7.4.2 HID Get_Input_report
Command Format:
bmRequestType
8’h A1
bRequest
8’h 01
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wValue
16’h 01 01
wIndex
16’h 00 03
wLength
16’h 00 10
Data
Report
Rev. 1.02 ︱ Page 24