CM109 Datasheet, PDF (23/36 Pages) C-Media Electronics – USB I/O Controller

CM109
High Integration / Low Cost USB Audio Controller
for PC Internet Phone
HID_OR1 (HID output report byte 1)
Offset : 0x05
Bits
Read/Write
Description
Default
7-0
R
When HID_IR0[7] == 1’b0:
0x00
Generic registers programmed by USB host
When HID_IR0[7] == 1’b1:
Mapped from EEPROM_DATA0
HID_OR2 (HID output report byte 2)
Offset : 0x06
Bits Read/Write
Description
7-0
R
When HID_IR0[7] == 1’b0:
Generic registers programmed by USB host
When HID_IR0[7] == 1’b1:
Mapped from EEPROM_DATA1
Default
HID_OR3 (HID output report byte 3)
Offset : 0x07
Bits Read/Write
Description
7-0
R
When HID_IR0[7] == 1’b0:
Generic registers programmed by USB host
When HID_IR0[7] == 1’b1:
Mapped from EEPROM_CTRL
Default
0x00
7.4.3 Indirect Accessed Registers:
MCU_CTRL (MCU control)
Offset : 0x08
Bits Read/Write
Description
7-6
--
Reserved
5-4
R/W 0: MCLK operating at 1.5MHz
1: MCLK operating at 3MHz
2: MCLK operating at 6MHz
3: Reserved
3-0
--
Reserved
Date: 08/Sep/2005
- 22 -
Default
0x0
0x0
0x0
Version: 1.3a