Read Sony NW-MS6 Service Manual online
31
NW-MS6
5-12.
IC PIN FUNCTION DESCRIPTION
•
MAIN BOARD IC7001 CXD9534BGG (SYSTEM CONTROLLER)
Pin No.
Pin Name
I/O
Description
1 to 7
D6 to D0
I/O
Two-way data bus with the flash memory (IC5000), S-RAM (IC5600) and CXD1859GA
(IC8000)
(IC8000)
8
VDDIO1
—
Power supply terminal (+2.8V)
9
VSSIO1
—
Ground terminal
10 to 18
A18 to A10
O
Address signal output to the flash memory (IC5000), S-RAM (IC5600) and CXD1859GA
(IC8000)
(IC8000)
19
VDDIO1
—
Power supply terminal (+2.8V)
20 to 28
A9 to A1
O
Address signal output to the flash memory (IC5000), S-RAM (IC5600) and CXD1859GA
(IC8000)
(IC8000)
29
A0
O
Address signal output terminal Not used (open)
30
VSSIO1
—
Ground terminal
31
VDDIO1
—
Power supply terminal (+2.8V)
32
MCLK
O
Not used (open)
33
XRW
O
Not used (open)
34, 35
MAS1, MAS0
O
Not used (open)
36
XOPC
O
Not used (open)
37
XMREQ
O
Not used (open)
38
VSSCORE
—
Ground terminal
39
VDDCORE
—
Power supply terminal (+1.8V)
40
XWAIT
O
Not used (open)
41
XRSTOUT
O
Reset signal output terminal “L”: reset Not used (open)
42, 43
BS1, BS0
O
Not used (open)
44
XOE
O
Output enable signal output to the flash memory (IC5000), S-RAM (IC5600) and CXD1859GA
(IC8000) “L” active
(IC8000) “L” active
45
XWE
O
Write enable signal output to the flash memory (IC5000), S-RAM (IC5600) and CXD1859GA
(IC8000) “L” active
(IC8000) “L” active
46
XUB
O
Write enable signal output to the S-RAM (IC5600) (upper byte) “L” active
47
XLB
O
Write enable signal output to the S-RAM (IC5600) (lower byte) “L” active
48
XCS1
O
Chip select signal output to the demultiplexer (IC5800)
49
XCS0
O
Chip select signal output to the flash memory (IC5000)
50
PWM3
O
Not used (open)
51
PWM2
O
Beep sound control signal output
52, 53
PWM1, PWM0
O
Not used (open)
54
VSSIO1
—
Ground terminal
55 to 59 GIOE7 to GIOE3
I
Key input from the console unit
60
RTC CS
O
Chip select signal output to the RV5C348A (IC1001)
61
SAM RST
O
Reset signal output to the CXD1859GA (IC8000)
62
HPBB1, 2
O
Bass boost level control signal output to the headphone amplifier (IC3200)
63
VDDIO1
—
Power supply terminal (+2.8V)
64
ATCRO
O
System wake up signal output to the WAKE0 (pin u;)
65
VSSIO1
—
Ground terminal
66
WAKE4
I
System wake up signal from the reset signal generator (IC9007)
Input the signal, when inserts the rechargeable battery
Input the signal, when inserts the rechargeable battery
67
WAKE3
I
System wake up signal from the CXD1859GA (IC8000) or voltage detector (IC9002)
Input the signal, when input the USB power
Input the signal, when input the USB power
68
WAKE2
I
Interrupt request signal input from the CXD1859GA (IC8000)
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