Sony XES-Z50 Service Manual page 61

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Pin No. Pin Name
40
41
42
43
44 VSS
45
46
47 A10
48 A11
49 A12
50 A13
51 A14
52 A15
53 A16
54 A17
55 A18
56 A19
57 VSS
58 NIH
59 NCO
60 NCO
TE
L 13942296513
61
62 STBY
63 RES
64 BU-IN
65 VSS
66 EXTAL
67 XTAL
68 VCC
69
70 RD
71 HWR
72 LWR
73 MD0
74 MD1
75 MD2
76 AVDD
77 AVREF
78 NIL
www
79 NIL
80 NIL
.
81 NIL
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I/O
A4 O
A5 O
Address signal output to the flash memory (IC931) and S-RAM (IC932)
A6 O
A7 O
—
Ground terminal
A8 O
A9 O
O
O
O
O
Address signal output to the flash memory (IC931) and S-RAM (IC932)
O
O
O
O
O
O
— Ground terminal
I
Not used (fixed at "H")
O
Not used (open)
O
Not used (open)
Ø O System clock output terminal Not used (open)
I
Hardware standby signal input terminal (fixed at "H")
I
Reset signal input from the display controller (IC802) "L": reset
I
Not used (fixed at "H")
— Ground terminal
I
System clock input terminal (14.745 MHz)
I
System clock input terminal (14.745 MHz)
—
Power supply terminal (+5V)
AS O
Address strobe signal output terminal Not used (open)
O Data reading strobe signal output to the flash memory (IC931) and S-RAM (IC932)
Also, this is used as strobe signal output for data writing to the flash memory (IC931), strobe
O signal output for higher byte data writing to the S-RAM (IC932), or latch signal to the LCD
controller for liquid crystal module
Also, this is used as strobe signal output for data writing to the flash memory (IC931), strobe
O
signal output for lower byte data writing to the S-RAM (IC932), or latch signal to the LCD
controller for liquid crystal module
I
Input terminal for setting microcomputer operation mode (fixed at "L")
I
Input terminal for setting microcomputer operation mode (fixed at "H")
I Input terminal for setting microcomputer operation mode (fixed at "H")
—
Power supply terminal (+5V) (for A/D conversion)
I
Reference voltage input terminal (+5V) (for A/D conversion)
I
I
x ao
Not used (fixed at "L")
y
I
i
I
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