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參數(shù)資料
| 型號： | CM109 |
| 廠商： | C-Media Electronics Inc. |
| 英文描述： | USB I/O Controller |
| 中文描述： | 的USB I / O控制器 |
| 文件頁數(shù)： | 11/36頁 |
| 文件大?。?/td> | 618K |
| 代理商： | CM109 |
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CM109
High Integration / Low Cost USB Audio Controller
for PC Internet Phone
Date: 08/Sep/2005
Version:
1.3a
- 18 -
HID_IR3 (HID input report byte 3)
Offset : 0x03
Bits
Read/Write
Description
Default
7-0
R
When HID_OR0[7] == 1’b0:
Generic registers programmed by MCU
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 buzzer and SPDIF
1: HID_OR0-3 are used as generic HID
registers
2: Values written to HID_OR0-3 are also
mapped to MCU_CTRL,
EEPROM_DATA0-1, EEPROM_CTRL (see
Note)
3: Reserved
0x0
5
R/W
When HID_OR0[7] == 1’b0:
0: Buzzer off
1: Buzzer on
When HID_OR0[7] == 1’b1:
Mapped to MCU_CTRL[5]
0x0
4
R/W
When HID_OR0[7] == 1’b0:
Valid bit in SPDIF frame
When HID_OR0[7] == 1’b1:
Mapped to MCU_CTRL[4]
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 : When EEPROM access is done, HID interrupt will occur. USB host can
get the result from interrupt pipe (endpoint 3).
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