HCD-EC59
16
• IC Pin Function Description
USB BOARD IC901 LC87F1JJ2AU-SQFP-H (USB CONTROLLER)
Pin No.
Pin Name
I/O
Description
1
P73
I/O
Not used
2
RES
I
Reset signal input from the system controller “L”: reset
3
XT1
I
Not used
4
XT2
O
Not used
5
VSS1
-
Ground terminal
6
CF1
I
Main system clock input terminal (12 MHz)
7
CF2
O
Main system clock output terminal (12 MHz)
8
VDD1
-
Power supply terminal (+3.3V)
9
SO0
O
Serial data output to the CD-MP3 processor
10
SI0
I
Serial data input from the CD-MP3 processor
11
SCK0
O
Serial data transfer clock signal output to the CD-MP3 processor
12
SO1
O
Serial data output terminal Not used
13
SI1
I
Serial data input terminal Not used
14
SCK1
O
Serial data transfer clock signal output terminal Not used
15
P16
I
Chip enable signal input from the CD-MP3 processor
16
P17
I/O
Not used
17
MCLKI
I
Master clock signal input terminal Not used
18
MCLKO
O
Master clock signal output terminal Not used
19
VDD2
-
Power supply terminal (+3.3V)
20
VSS2
-
Ground terminal
21, 22
P00, P01
I/O
Not used
23 to 25
DBGP0 to DBGP2
-
Debug terminal
26
SDAT
I
Serial data input from the CD-MP3 processor
27
BCLK
I
Bit clock signal input from the CD-MP3 processor
28
LRCK
I
L/R sampling clock signal input from the CD-MP3 processor
29, 30
P20, P21
I/O
Not used
31
P22
O
Audio serial data output to the CD-MP3 processor
32
P23
O
Request signal output to the CD-MP3 processor
33
P24
O
Audio serial data transfer clock signal output to the CD-MP3 processor
34 to 36
P25 to P27
I/O
Not used
37
UHD-
I/O
USB D- serial data input/output terminal
38
UHD+
I/O
USB D+ serial data input/output terminal
39
VDD3
-
Power supply terminal (+3.3V)
40
VSS3
-
Ground terminal
41
UFILT
-
PLL
fi
lter circuit connection terminal for USB interface Not used
42
AFILT
-
PLL
fi
lter circuit connection terminal for audio interface Not used
43
P32
I/O
Not used
44
URX1
I
USB RX signal input from the system controller
45
UTX1
O
USB TX signal output to the system controller
46
P70
I
Request signal input from the CD-MP3 processor
47
P71
I
Sleep control siganl input from the system controller
48
P72
I/O
Not used
