Control Port Functions

●System Control & I/O Port Table (IC801, HD6417727F)

Pin No.

Function Name

Function

Polarity

I/O

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

- 52 -

Page 51 Page 53
Page 52
Image 52
Eiki LC-X71 LC-X71L service manual Control Port Functions, System Control & I/O Port Table IC801, HD6417727F
Page 51 Page 53

LC-X71 LC-X71L specifications

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In conclusion, the Eiki LC-X71 and LC-X71L projectors deliver exceptional performance, combining high brightness, versatile connectivity, and user-friendly features. Their technological advancements cater to various needs, ensuring that they stand out in the competitive market of multimedia projectors.
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