Read Sony HCD-EC599 / MHC-EC599 Service Manual online
HCD-EC599
31
• IC Pin Function Description
DB76 BOARD IC901(2/2) IC LC87F1JJ2AU-SQFP-H (USB CONTROL)
Pin No.
Pin Name
I/O
Description
1
P73
O
Not used. (Open)
2
RES
―
USB control reset pin
3
XT1
―
Not used. (Connect to VDD)
4
XT2
O
Not used. (Open)
5
VSS1
―
Ground
6
CF1
I
Oscillation signal input (12 MHz)
7
CF2
O
Oscillation signal output (12 MHz)
8
VDD1
―
Power supply pin (+3.3 V)
9
SO0
O
CD digital signal processor serial data communication signal output
10
SI0
I
CD digital signal processor serial data communication signal input
11
SCK0
I/O
CD digital signal processor clock communication signal input/output
12
SO1
O
Not used. (Open)
13
SI1
O
Not used. (Open)
14
SCK1
O
Not used. (Open)
15
P16
I
CD digital signal processor enable communication signal input
16
P17
O
Not used. (Open)
17
MCLKI
O
Not used. (Open)
18
MCLKO
O
Not used. (Open)
19
VDD2
―
Power supply pin (+3.3 V)
20
VSS2
―
Ground
21, 22
P00, P01
O
Not used. (Open)
23 to 25
DBGP0 to DBGP2
O
For debagger pin
26
SDAT
I
USB record MP3 serial data signal input
27
BCLK
I
USB record MP3 serial data shift clock signal input
28
LRCK
I
USB record MP3 serial data word clock signal input
29, 30
P20, P21
O
Not used. (Open)
31
P22
O
USB playback serial data signal output
32
P23
O
USB record MP3 serial data request signal output
33
P24
O
USB playback serial data communication clock signal output
34 to 36
P25 to P27
O
Not used. (Open)
37
UHD–
I/O
USB D– serial data input/output
38
UHD+
I/O
USB D+ serial data input/output
39
VDD3
―
Power supply pin (+3.3 V)
40
VSS3
―
Ground
41
UFILT
I
USB interface PLL fi lter circuit connection pin (Fixed at L in this set)
42
AFILT
O
Not used. (Open)
43
P32
O
Not used. (Open)
44
URX1
I
System controller input communication signal input
45
UTX1
O
System controller output communication signal output
46
P70
I
USB playback serial data request signal input
47
P71
I
USB controller command processing cancel signal input
48
P72
O
Not used. (Open)
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