參數(shù)資料
型號: CM108
廠商: C-Media Electronics Inc.
英文描述: USB Audio I/O Controller
中文描述: USB音頻I / O控制器
文件頁數(shù): 14/29頁
文件大?。?/td> 514K
代理商: CM108
CM108
Integration Dual DAC, Earphone Driver, ADC,
Microphone Booster, PLL, Regulator, and USB Transceiver
Date: Nov/01/2004
Version: 1.5
- 20 -
HID_IR2 (HID input report byte 2)
Offset : 0x02
Bits
Read/Write
Description
Default
7-0
R
When HID_OR0[7] == 1’b1:
Mapped from EEPROM_DATA1
0x00
HID_IR3 (HID input report byte 3)
Offset : 0x03
Bits
Read/Write
Description
Default
7-0
R
When HID_OR0[7] == 1’b1:
Mapped from EEPROM_CTRL
0x00
HID_OR0 (HID output report byte 0)
Offset : 0x04
Bits
Read/Write
Description
Default
7-6
R / W
0: HID_OR1-2 are used for GPO;
HID_OR0, 3 are used for SPDIF
1: Reserved
2: Values written to HID_OR0-3 are also
mapped to EEPROM_DATA0-1,
EEPROM_CTRL (See Note)
3: Reserved
0x0
5
R / W
Reserved
0x0
4
R / W
When HID_OR0[7] == 1’b0:
Valid bit in SPDIF frame
When HID_OR0[7] == 1’b1:
Reserved
0x0
3-0
R / W
When HID_OR0[7] == 1’b0:
First nibble of SPDIF status channel
When HID_OR0[7] == 1’b1:
Reserved
0x0
Note 1: When EEPROM access is done, HID interrupt will occur. USB host can get the result
from interrupt pipe (endpoint 3).
Note 2: HID_OR0 is used for SPDIF when SPDIF_CONFIG[5] == 1’b0
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