Explanation of microcomputer – Sanyo NV-E7000 User Manual

Page 21

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EXPLANATION OF MICROCOMPUTER

89

/CS4

O

90

/CS5

O

91

/CS6

O

92

/CE2A

O

93

GND

PWR

0V

94

PTD[7]

O

95

LVcc

PWR

+3.3V

96

/RAS

O

97

PTD[1]

O

98

/CAS

O

99

PTD[3]

I/O

100

PTD[4]

I/O

101

/IOIS16

I

Pull-up

102

/BACK

O

103

/BREQ

I

Pull-up
Hardwave wait request

104

/WAIT

I

105

/DACK0

O

DMA acknowledge 0
DMA acknowledge 1

106

/DACK1

O

107

PTE[2]

I

108

PTE[3]

I

109

PTF[0]

I

110

PTF[1]

I

111

PTF[2]

I

112

PTF[3]

I

Pull-up

113

PTF[4]

O

114

PTG[0]

I

Pull-up

115

GND

PWR

0V

116

PTG[1]

I

Pull-up

117

LLVcc

PWR

+1.9V

118

PTG[2]

I

Pull-up

119

PTG[3]

I

Pull-up

120

PTF[5]

I/O

121

PTF[6]

I/O

122

/ASEMD0

I

Pull-up

PLL2 external capacitance pin

PLL1 external capacitance pin

123

LLVcc

PWR

+1.9V

124

CAP1

-

125

GND

PWR

0V

126

GND

PWR

0V

127

CAP2

-

128

LLVcc

PWR

+1.9V

129

MD1

I

Pull-up

130

GND

PWR

0V

77

/BS

O

78

/RD

O

79

/WE0

O

80

/WE1

O

81

/WE2

O

82

/WE3

O

83

RD/WR

O

84

GND

PWR

0V

85

/CS0

O

86

LVcc

PWR

+3.3V

87

/CS2

O

88

/CS3

O

Pin

I/O

IC801 (HD6417706)2/3

Signal

Function

NC

NC

NC

NC
NC

NC

NC

NC
NC

Read strobe

Chip select

Chip select 3
Chip select 4

Chip select 5
Chip select 6

Input/output port D

Input/output port D

Input/output port E
Input/output port E
Input/output port F

Input/output port F

Input/output port F

Lower32 Mbytes address RAS

Lower32 Mbytes address CAS

D70-D0 select signal
D15-D8 select signal
D23-D16 select signal
D31-D24 select signal
Read/write select signal

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