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CM 108AH Highly Integrated USB Audio I/O Controller www .cmedia.com.tw Copyright© C-Media Electro nics Inc. R ev . 2.1 ︱ P age 21/27 HID_OR2 (HID outp ut report b yte 2) Offset: 0x06 Bits Read/Write Description Default 7…
CM108AH
Highly Integrated USB Audio I/O Controller
www.cmedia.com.tw
Copyright© C-Media Electronics Inc. Rev. 2.1︱ Page 20/27
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
HID_OR1 (HID output report byte 1)
Offset: 0x05
Bits
Read/Write
Description
Default
7-0
R / W
When HID_OR0[7:6] == 2’b00: HID_OR1[3:0] is the output to
GPIO4 ~ GPIO1 in output mode
0: GPO drives L
1: GPO drives H
When HID_OR0[7:6] == 2’b01: reserved
When HID_OR0[7:6] == 2’b1x: mapped to EEPROM__DATA0
0x00
CM108AH
Highly Integrated USB Audio I/O Controller
www.cmedia.com.tw
Copyright© C-Media Electronics Inc. Rev. 2.1︱ Page 21/27
HID_OR2 (HID output report byte 2)
Offset: 0x06
Bits
Read/Write
Description
Default
7-0
R / W
When HID_OR0[7:6] == 2’b00: HID_OR2[3:0] is the mode
setting for GPIO4 ~ GPIO1
0: set GPIO to input mode
1: set GPIO to output mode
When HID_OR0[7:6] == 2’b01: reserved
When HID_OR0[7:6] == 2’b1x: mapped to EEPROM_DATA1
0x00
HID_OR3 (HID output report byte 3)
Offset: 0x07
Bits
Read/Write
Description
Default
7-0
R / W
When HID_OR0[7] == 1’b0: category byte of SPDIF status
channel
When HID_OR0[7] == 1’b1: mapped to EEPROM_CTRL
0x00
Note: HID_OR3 is used for SPDIF when SPDIF_CONFIG[5] == 1’b0
CM108AH
Highly Integrated USB Audio I/O Controller
www.cmedia.com.tw
Copyright© C-Media Electronics Inc. Rev. 2.1︱ Page 22/27
8 Electrical Characteristics
8.1 Absolute Maximum Rating
Symbol
Parameters
Value
Unit
Dvmin
Min. digital supply voltage
– 0.3
V
Dvmax
Max. digital supply voltage
+ 6
V
Avmin
Min. analog supply voltage
– 0.3
V
Avmax
Max. analog supply voltage
+ 6
V
Dvinout
Voltage on any digital input or output pin
–0.3 to +5.5
V
Avinout
Voltage on any analog input or output pin
–0.3 to +5.5
V
TBstgB
Storage temperature range
-40 to +125
P0PC
ESD (HBM)
ESD human body mode
4000
V
ESD (MM)
ESD machine mode
200
V
Latch Up
JEDEC standard no.78, Mar. 1997
200
mA
8.2 Operation Conditions
Operation conditions
Min
Typ
Max
Unit
Analog supply voltage
4.5
5.0
5.5
V
Digital supply voltage
4.5
5.0
5.5
V
Total power consumption
-
35
mA
Suspend-mode power consumption
-
500
uA
Operating ambient temp.
-15
-
70
PoPC