Yamaha IM8-32, Руководство по обслуживанию

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45
IM8-40/IM8-32/IM8-24
LSI PIN DESCRIPTION
（LSI 端子機能表）
1
2
3
4
5
6
7
8
9
10
11
12
13
14
D+
D-
V
BUS
DGNDU
HID0
HID1
HID2
SEL0
SEL1
V
CCCI
AGNDC
V
IN
L
V
IN
R
V
COM
I/O
I/O
-
-
I
I
I
I
I
-
-
I
I
-
USB differential input/output plus
USB differential input/output minus
Connect to USB power (V
BUS
)
Digital ground for USB transceiver
HID key state input(mute), active high
HID key state input(volume up),active high
HID key state input(volume down),active high
Must be set to high
Must be set to high
Internal analog power supply for codec
Analog ground for codec
ADC analog input for L-channel
ADC analog input for R-channel
Common for ADC/DAC(VCCCI/2)
15
16
17
18
19
20
21
22
23
24
25
26
27
28 V
OUT
R
V
OUT
L
V
CCP1I
AGNDP
V
CCP2I
XTO
XTI
AGNDX
V
CCXI
TEST0
TEST1
DGND
V
DDI
SSPND
O
O
-
-
-
O
I
-
-
I
O
-
-
O
DAC analog output for R-channel
DAC analog output for L-channel
Internal analog power supply for PLL
Analog ground for PLL
Internal analog power supply for PLL
Crystal oscillator output
Crystal oscillator input
Analog ground for oscillator
Internal analog power supply for oscillator
Test pin, must be connected to GND
Test pin, must be left open
Digital gronud
Internal digital power supply
Suspend flag, active low
(Low: suspend, High: operational)
PIN
NO.
I/O FUNCTION NAME
PIN
NO.
I/O FUNCTION NAME
USB: IC101
PCM2900E/2K
(X7143A00)
USB PROTOCOL CONTROLLER