Yamaha DTXPRESS IV, Service Manual

11

DTXPRESS 

■

 LSI PIN DESCRIPTION

（LSI 端子機能表）

1

ICN

I

Initial clear

85

CMA3

O

Program address bus

2

RFCLKI

I

PLL Clock

86

CMA8

O

Program address bus

3

TM2

I

PLL Control

87

CMA2

O

Program address bus

4

AVDD_PLL

Power supply

88

CRD

O

read signal

5

AVSS_PLL

Ground

89

CMA1

O

Program address bus

6

MODE0

I

SWX dual mode

90

CUB

O

high byte effective signal

7

VCC7

Power supply

91

VCC91

Power supply

8

GND8

Ground

92

GHND92

Ground

9

XIN

I

crystal oscillator

93

CS1

O

CS signal

10

XOUT

O

crystal oscillator

94

CMA0

O

Program address bus

11

MODE1

I

SWX separate mode

95

CLB

O

low byte effective signal

12

TEST0

I

TEST pin

96

CMA12

O

Program address bus

13

TESTON

I

TEST pin

97

CMA11

O

Program address bus

14

AN0-P40

I

A/D converter

98

CMA10

O

Program address bus

15

AN1-P41

I

A/D converter

99

CMA9

O

Program address bus

16

AN2-P42

I

A/D converter

100

GND100

Ground

17

AN3-P43

I

A/D converter

101

CWE

O

write signal

18

AVDD_AN

Power supply

102

CMA16

O

Program address bus

19

AVSS_AN

Ground

103

CMA15

O

Program address bus

20

TXD0

O

for MIDI or TO-HOST

104

CMA14

O

Program address bus

21

TXD1

O

for MIDI

105

CMA13

O

Program address bus

22

EXCLK

I

Crystal oscillator

106

CMD8

I/O

Program memory Data bus

23

SMD11

I/O

Wave memory data bus

107

CMD7

I/O

Program memory Data bus

24

SMD4

I/O

Wave memory data bus

108

CMD9

I/O

Program memory Data bus

25

SMD3

I/O

Wave memory data bus

109

CMD6

I/O

Program memory Data bus

26

SMD12

I/O

Wave memory data bus

110

CMD10

I/O

Program memory Data bus

27

SMD10

I/O

Wave memory data bus

111

CMD5

I/O

Program memory Data bus

28

SMD5

I/O

Wave memory data bus

112

CMD11

I/O

Program memory Data bus

29

SMD2

I/O

Wave memory data bus

113

CMD4

I/O

Program memory Data bus

30

SMD13

I/O

Wave memory data bus

114

CMD12

I/O

Program memory Data bus

31

SMD9

I/O

Wave memory data bus

115

CMD3

I/O

Program memory Data bus

32

SMD6

I/O

Wave memory data bus

116

CMD13

I/O

Program memory Data bus

33

SMD1

I/O

Wave memory data bus

117

CMD2

I/O

Program memory Data bus

34

SMD14

I/O

Wave memory data bus

118

CMD14

I/O

Program memory Data bus

35

VCC35

Power supply

119

VCC119

Power supply

36

GND36

Ground

120

GND115

Ground

37

SMD8

I/O

Wave memory data bus

121

CMD1

I/O

Program memory Data bus

38

SMD7

I/O

Wave memory data bus

122

CMD15

I/O

Program memory Data bus

39

SMD0

I/O

Wave memory data bus

123

CMD0

I/O

Program memory Data bus

40

SMD15

I/O

Wave memory data bus

124

CMA21

O

Program address bus

41

SOE

O

read signal

125

PDT15

I/O

SWX access data bus

42

SWE

O

write signal

126

PDT14

I/O

SWX access data bus

43

SRAS

O

RAS signal

127

PDT13

I/O

SWX access data bus

44

SCAS

O

CAS signal

128

PDT12

I/O

SWX access data bus

45

REFRESH

O

REFRESH signal

129

PDT11

I/O

SWX access data bus

46

CS0

O

CS signal

130

PDT10

I/O

SWX access data bus

47

SMA0

O

Memory address bus

131

PDT9

I/O

SWX access data bus

48

SMA16

O

Memory address bus

132

PDT8

I/O

SWX access data bus

49

VCC49

Power supply

133

VCC133

Power supply

50

GND50

Ground

134

GND134

Ground

51

SMA1

O

Memory address bus

135

PDT7

I/O

SWX access data bus

52

SMA15

O

Memory address bus

136

PDT6

I/O

SWX access data bus

53

SMA2

O

Memory address bus

137

PDT5

I/O

SWX access data bus

54

SMA14

O

Memory address bus

138

PDT4

I/O

SWX access data bus

55

SMA3

O

Memory address bus

139

PDT3

I/O

SWX access data bus

56

SMA13

O

Memory address bus

140

PDT2

I/O

SWX access data bus

57

SMA4

O

Memory address bus

141

PDT1

I/O

SWX access data bus

58

SMA12

O

Memory address bus

142

PDT0

I/O

SWX access data bus

59

SMA5

O

Memory address bus

143

VCA143

Power supply

60

GND60

Ground

144

GND144

Ground

61

VCC61

Power supply

145

PAD2

I

SWX access address bus

62

SMA11

O

Memory address bus

146

PAD1

I

SWX access address bus

63

SMA6

O

Memory address bus

147

PAD0

I

SWX access address bus

64

SMA10

O

Memory address bus

148

VCC148

Power supply

65

SMA7

O

Memory address bus

149

GND149

Ground

66

SMA9

O

Memory address bus

150

PCS

I

Chip select

67

SMA17

O

Memory address bus

151

PWR

I

write enable

68

SMA8

O

Memory address bus

152

PRD

I

read enable

69

SMA18

O

Memory address bus

153

RXD0

I

for Midi or TO-HOST

70

SMA19

O

Memory address bus

154

RXD1

I

for Midi or Key scan

71

SMA20

O

Memory address bus

155

SCLKI

I

EXT Clock

72

SMA21

O

Memory address bus

156

ADIN

I

A/D converter

73

SMA22

O

Memory address bus

157

ADLR

O

A/D converter LR clock

74

SMA23

O

Memory address bus

158

DO0

O

DAC

75

CMA20

O

Program address bus

159

DO1

O

DAC

76

CMA19

O

Program address bus

160

SYSCLK

O

1/2 clock

77

VCC77

Power supply

161

VCC161

Power supply

78

GND78

O

Ground

162

GND162

Ground

79

CMA18

O

Program address bus

163

WCLK

O

for DAC LR clock

80

CMA17

O

Program address bus

164

QCLK

O

1/12 clock

81

CMA5

O

Program address bus

165

BCLK

O

IIS-DAC clock

82

CMA6

O

Program address bus

166

SYI

I

Synch signal

83

CMA4

O

Program address bus

167

IRQ0

I

Interrupt request

84

CMA7

O

Program address bus

168

NMI

I

Interrupt request

PIN

NAME

I/O

FUNCTION

NO.

PIN

NAME

I/O

FUNCTION

NO.

HG73C205AFDV (XU947C00) SWX00B (Tone Generator)

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