Panasonic KX-P7100, Service Manual

Page: 89 / 148

7.3. IC3 ( GDI ASIC )
IC3 (GDI ASIC)
Pin
No.
Symbol In/Out Function
Pin
No.
Symbol In/Out Function
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
PEND
BUSY
nACK
nSTROB
VSS
PIOD7
VDD
PIOD6
PIOD5
PIOD4
PIOD3
PIOD2
PIOD1
PIOD0
PCLK
VDD
SIOAO
nSIOCS
SIOWR
SIORD
VDO1
VDO0
DOTCLK
VCLK
VSS
nHSYNC
VDD
nVSROZ
nCBSY
nCCLK
nCMD
GIO3
GIO4
GIO5
nSBSY
nSTS
MA0
MA1
MA2
VSS
MA3
MA4
VSS
MA5
MA6
MA7
VDD
MA8
MA9
nINIT Out
Out
Out
In
-
In/Out
-
In/Out
In/Out
In/Out
In/Out
In/Out
In/Out
In/Out
-
-
In/Out
-
-
-
-
Out
-
In
-
In
-
In
Out
Out
Out
Out
In
In
In
In
Out
Out
Out
-
Out
Out
-
Out
Out
Out
-
Out
Out
In
Paper End signal
Busy signal
Acknowledge signal
Data strobe signal
GND
Bi-directional data7
+5V
Bi-directional data6
Bi-directional data5
Bi-directional data4
Bi-directional data3
Bi-directional data2
Bi-directional data1
Bi-directional data0
N.C.
+5V
GND (via 10k ohm)
N.C.
N.C.
N.C.
N.C.
Video data
N.C.
Video clock
GND
HSYNC signal
+5V
Engine Vsync request
Command busy signal
Communication clock
Command data
Print signal
Printer power ready signal
Printer ready signal
Status busy signal
Status data
Memory address signal0
Memory address signal1
Memory address signal2
-
Memory address signal3
Memory address signal4
-
Memory address signal5
Memory address signal6
Memory address signal7
-
Memory address signal8
Memory address signal9
Initial signal 51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
nRAS1
nRAS0A
nRAS0B
nCAS
nMOE
nMWE
VSS
MA10
MA11
MA12
MA13
MA14
MD7
VDD
MD6
VDD
MD5
MD4
MD3
MD2
MD1
VSS
MD0
nRD
nWR
ASTB
AD0
AD1
AD2
AD3
AD4
AD5
AD6
VDD
AD7
nWAIT
nINTR
nIOCS1
VSS
CLKO
CLKI
VSS
nRESET
CA8
CA9
CA10
SLCTIN
nAUTOFD
nFAULT
SLCT
Out
Out
-
Out
Out
Out
-
-
-
-
-
-
In/Out
-
In/Out
-
In/Out
In/Out
In/Out
In/Out
In/Out
-
In/Out
In
In
In
In/Out
In/Out
In/Out
In/Out
In/Out
In/Out
In/Out
-
In/Out
In/Out
Out
-
-
-
In
-
In
In
In
In
In
In
Out
Out
Memory row address strobe
Bank 0 chip select signal
N.C.
Memory column
address strobe
Memory output
enable signal
Memory write signal
GND
N.C.
N.C.
N.C.
N.C.
N.C.
Memory data7
+5V
Memory data6
+5V
Memory data5
Memory data4
Memory data3
Memory data2
Memory data1
GND
Memory data0
CPU read signal
CPU write signal
CPU latch signal
CPU address/data0
CPU address/data1
CPU address/data2
CPU address/data3
CPU address/data4
CPU address/data5
CPU address/data6
+5V
CPU address/data7
+5V (via 10k ohm)
CPU interrupt signal
N.C.
GND
N.C.
System clock
GND
System reset signal
CPU address8
CPU address9
CPU address10
Select In signal
Auto Feed signal
Fault signal
Select signal
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KX-P7100