Control port functions – Eiki LC-X71 LC-X71L User Manual
Page 52
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Control Port Functions
● System Control & I/O Port Table (IC801, HD6417727F)
1 1.9V
Power
for
RTC(1.9V)
-
-
2
(Not used)
X'TAL for built-in RTC
(Open)
-
3
1.9V
X'TAL for built-in RTC
(Vcc)
-
4 GND
Power
for
RTC(0V)
-
-
5
MD1
Clock mode setting [Default:L]
L fixed
I
6
MD2
Clock mode setting [Default:L]
L fixed
I
7
NMI
Request for non-maskable interrupt
-
I
8 IRQ0
TE7780
interrupt
Active
L
I
9
(Not used)
(Not used)
(Pull-up)
I
10
VSYNC_INTR
V-sync interrupt for panel drive
Active L
I
11
SH_INT_DPRAM
Dual Port RAM interrupt
Active L
I
12
R/C
Remote control signal input
Active L
I
13
(Not used)
(Open)
I
14
(Not used)
(Open)
I
15
MD5 Endian
Setting
L
fixed
I
16
(Not used)
(Pull-up)
-
17
(Not used)
(Open)
O
18
GND
Power for Input/Output (0V)
-
-
19
(Not used)
(Open)
-
20 3.3V
Power
for
Input/Output(3.3V)
-
-
21 D31
Data
Bus
-
I/O
22 D30
Data
Bus
-
I/O
23 D29
Data
Bus
-
I/O
24 D28
Data
Bus
-
I/O
25 D27
Data
Bus
-
I/O
26 D26
Data
Bus
-
I/O
27 D25
Data
Bus
-
I/O
28 D24
Data
Bus
-
I/O
29 GND
Power
for
Input/Output(0V)
-
-
30 D23
Data
Bus
-
I/O
31 3.3V
Power
for
Input/Output(3.3V)
-
-
32 D22
Data
Bus
-
I/O
33 D21
Data
Bus
-
I/O
34 D20
Data
Bus
-
I/O
35 GND
Power
(0V)
-
-
36 D19
Data
Bus
-
I/O
37 1.9V
Power
(1.9V)
-
-
38 D18
Data
Bus
-
I/O
39 D17
Data
Bus
-
I/O
40 D16
Data
Bus
-
I/O
41 D15
Data
Bus
-
I/O
42 GND
Power
for
Input/Output(0V)
-
-
43 D14
Data
Bus
-
I/O
44 3.3V
Power
for
Input/Output(3.3V)
-
-
45 D13
Data
Bus
-
I/O
46 D12
Data
Bus
-
I/O
47 D11
Data
Bus
-
I/O
48 D10
Data
Bus
-
I/O
49 D9
Data
Bus
-
I/O
50 D8
Data
Bus
-
I/O
51 D7
Data
Bus
-
I/O
52 D6
Data
Bus
-
I/O
53
GND
Power for Input/Output (0V)
-
-
54 D5
Data
Bus
-
I/O
55
3.3V
Power for Input/Output (3.3V)
-
-
56 D4
Data
Bus
-
I/O
57
D3 Data
Bus
-
I/O
58 D2
Data
Bus
-
I/O
59 D1
Data
Bus
-
I/O
60 D0
Data
Bus
-
I/O
61 A0
Address
Bus
-
O
61 A1
Address
Bus
-
O
63 A2
Address
Bus
-
O
64
GND
Power for Input/Output(0V) - -
65 A3
Address
Bus
-
O
66
3.3V
Power for Input/Output(3.3V) - -
67 A4
Address
Bus
-
O
Pin No.
Function Name
Function
Polarity
I/O