87
MEX-1HD
•
MAIN BOARD IC4001 CXD1859AGA
Pin No.
Pin Name
I/O
Description
1
CLKSEL2
I
Clock mode setting terminal Fixed at “L” in this set
2
XTAL0
O
Sub system clock output terminal (22.579MHz)
3
EXTAL0
I
Sub system clock input terminal (22.579MHz)
4
VSS0
—
Ground terminal
5
CLKSEL3
I
Clock mode setting terminal Fixed at “H” in this set
6
CLKSEL4
I
Clock mode setting terminal Fixed at “L” in this set
7
VDD0
—
Power supply terminal (+1.8V)
8
VDE0
—
Power supply terminal (+3.3V)
9
XTAL1
O
Main system clock output terminal (20MHz)
10
EXTAL1
I
Main system clock input terminal (20MHz)
11
XOSCSTP
O
Stop oscillating signal output terminal “L”: stop oscillating Not used
12
VSS1
—
Ground terminal
13
XRST
I
Reset signal input from the CPU
14
AVS1
—
Ground terminal (for PLL)
15
AVD1
—
Power supply terminal (+3.3V) (for PLL)
16
FS256
O
Clock signal (11.2896 MHz) output to the D/A converter
17
DP0
O
Ready/busy signal output to the EEPROM “L”: busy, “H”: ready
18
DP1
O
Reset signal output to the EEPROM
19
VSS2
—
Ground terminal
20
BS
O
Bus state signal output to a memory stick
21
SCLK
O
Clock signal output to a memory stick
22
DIO
I/O
Two-way data bus with a memory stick
23
VDE1
—
Power supply terminal (+3.3V)
24
VDD1
—
Power supply terminal (+1.8V)
25
DP2
O
USB communication on/off control signal output terminal “H”: USB communication on
Not used
26
INS
I
Memory stick in/out detection signal input “L”: memory stick is inserted
27
VSS3
—
Ground terminal
28
UDP
I/O
Two-way data bus of USB data Not used
29
AVD2
—
Power supply terminal (+3.3V)
30
UDM
I/O
Two-way data bus of UBS data Not used
31
BCLK
O
Bit clock signal output to the D/A converter
32
LRCK
O
L/R sampling clock signal output to the D/A converter
33
SDO
O
Audio signal output to the D/A converter
34
VSS4
—
Ground terminal
35
SDI
I
Audio signal input terminal Not used
36
DAOUT
O
Digital audio signal output terminal Not used
37
DAIN
I
Digital audio signal input terminal Not used
38
VDE2
—
Power supply terminal (+3.3V)
39 to 44
DB0 to DB5
I/O
Two-way data bus with the CPU, CPU/ATA interface IC, USB interface IC, display controller,
64MB flash memory and 128MB SD-RAM
45
VDD2
—
Power supply terminal (+1.8V)
46
VSS5
—
Ground terminal
47 to 52
DB6 to DB11
I/O
Two-way data bus with the CPU, CPU/ATA interface IC, USB interface IC, display controller,
64MB flash memory and 128MB SD-RAM
53
VDE3
—
Power supply terminal (+3.3V)
(DIGITAL SIGNAL PROCESSOR, MAGIC GATE CORE, MEMORY STICK INTERFACE)
Summary of Contents for MEX-1HD - Audio Library System
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