Pin

Symbol

Type

Description

44

IOA4

Inout, Pull Up

Microcontroller address 4 / GPIO4

45

IOA5

Inout, Pull Up

Microcontroller address 5 / GPIO5

46

IOA6

Inout, Pull Up

Microcontroller address 6 / GPIO6

47

IOA7

Inout, Pull Up

Microcontroller address 7 / GPIO7

48

A16

Output

Flash address 16

49

A17

Output

Flash address 17

50

IOA18

Inout

Flash address 18 / GPIO10

51

IOA19

Inout

Flash address 19 / GPIO11

52

DMVSS

Ground

Ground for DRAM clock circuitry

53

DMVDD3

Power

Power for DRAM clock circuitry

54

ALE

Inout, Pull Up

Microcontroller address latch enable

55

IOOE#

Inout

Flash output enable, active low / GPIO13

56

IOWR#

Inout

Flash write enable, active low / GPIO17

57

IOCS#

Inout, Pull Up

Flash chip select, active low / GPIO18

58

DVSS

Ground

Ground

59

UP1_2

Inout, Pull Up

Microcontroller port 1-2

60

UP1_3

Inout, Pull Up

Microcontroller port 1-3

61

UP1_4

Inout, Pull Up

Microcontroller port 1-4

62

UP1_5

Inout, Pull Up

Microcontroller port 1-5

63

UP1_6

Inout, Pull Up

Microcontroller port 1-6

64

DVDD3

Power

3.3V power

65

UP1_7

Inout, Pull Up

Microcontroller port 1-7

66

UP3_0

Inout, Pull Up

Microcontroller port 3-0

67

UP3_1

Inout, Pull Up

Microcontroller port 3-1

68

INT0#

Inout, Pull Up

Microcontroller interrupt 0, active low

69

IR

Input

IR control signal input

70

DVDD2

Power

2.5V power

71

UP3_4

Inout

Microcontroller port 3-4

72

UP3_5

Inout

Microcontroller port 3-5

73

UWR#

Inout, Pull Up

Microcontroller write strobe, active low

74

URD#

Inout, Pull Up

Microcontroller read strobe, active low

75

XTALI

Input

Crystal input, 27MHz

76

XTALO

Output

Crystal output

77

DVSS

Ground

Ground

78

RD7

Inout

DRAM data 7

79

RD6

Inout

DRAM data 6

80

RD5

Inout

DRAM data 5

81

RD4

Inout

DRAM data 4

82

DVDD2

Power

2.5V power

83

RD3

Inout

DRAM data 3

84

RD2

Inout

DRAM data 2

85

RD1

Inout

DRAM data 1

86

RD0

Inout

DRAM data 0

87

RWE#

Output

DRAM write enable, active low

88

CAS#

Output

DRAM column address strobe, active low

89

RAS#

Output

DRAM row address strobe, active low

90

RCS#

Output

DRAM chip select, active low

91

BA0

Output

DRAM bank address 0

4-4

Page 62
Image 62
Daewoo DVG - 5300N, DVG - 8400N service manual Uwr#