Epson S1C63000 manuals

Epson S1C63000 User Manual (152 pages)

Brand: Epson | Category: Computers | Size: 0.86 MB |

English

Table of contents

S1C63000

1

S1C63000 CORE CPU MANUAL

5

CONTENTS

6

1OUTLINE

7

1.3 Block Diagram

8

1.4 Input-Output Signals

8

CHAPTER 1: OUTLINE

9

2ARCHITECTURE

10

2.1.3 Flags

11

• C (carry) flag

12

• I flag

12

• E (extension mode) flag

12

• Flag operations

12

CHAPTER 2: ARCHITECTURE

13

(2) Extension with E flag

15

EXT register

16

2.2 Program Memory

17

2.2.3 Branch instructions

18

EPSON 13

19

EPSON 15

21

2.3 Data Memory

23

2.3.3 Stack and stack pointer

25

(2) Stack pointer SP2

26

2.3.4 Memory mapped I/O

27

3 CPU OPERATION

28

3.3.1 Data bus status

29

3.3.2 High-impedance control

29

3.3.3 Interrupt vector read

30

3.3.4 Memory write

30

3.4 Initial Reset

31

3.5 Interrupts

32

3.5.2 Interrupt sequence

33

• Software interrupts

36

3.6 Standby Status

37

4INSTRUCTION SET

39

• 6-bit absolute addressing

40

EPSON 35

41

4.2 Instruction List

43

4.2.2 Symbol meanings

44

Operations and others

45

EPSON 41

47

EPSON 43

49

ALU logic operation (1/2)

50

Stack operation

53

EPSON 51

57

↔↔↔↔↔↔↔↔↔↔↔↔↔↔↔↔↔↔↔↔↔↔↔↔↔↔

58

EPSON 53

59

EPSON 55

61

EPSON 57

63

4.3 Instruction Formats

65

ADC %r,%r'

67

EPSON 63

69

ADC [%ir],imm4

70

ADC [%ir]+,imm4

70

EPSON 65

71

ADC %B,[%ir]+,n4

72

ADC [%ir]+,%B,n4

73

ADC [%ir]+,0,n4

74

EPSON 69

75

EPSON 71

77

ADD [%ir]+,imm4

78

EPSON 73

79

AND %r,[%ir]

81

AND [%ir]+,imm4

83

BIT %r,[%ir]

85

BIT [%ir],imm4

87

BIT [%ir]+,imm4

87

EPSON 83

89

CMP %r,%r’

90

CMP %r,[%ir]

91

CMP %r,[%ir]+

91

CMP [%ir],%r

92

CMP [%ir],imm4

93

CMP [%ir]+,imm4

93

CMP %ir,imm8

94

DEC [addr6]

94

EPSON 89

95

DEC %sp

96

EPSON 91

97

Set CPU to HALT mode 2 cycles

98

EPSON 93

99

INC %sp

100

EPSON 95

101

CHAPTER 4: INSTRUCTION SET

101

Mnemonic MSB LSB

101

EPSON 97

103

EPSON 99

105

EPSON 101

107

LD [%ir]+,imm4

109

LD [%ir],[%ir’]+

110

LD [%ir]+,[%ir’]+

111

EPSON 107

113

LDB [%X]+,imm8

114

EPSON 109

115

NOP No operation 1 cycle

117

OR %r,%r’

118

OR %r,imm4

118

EPSON 113

119

EPSON 115

121

OR [%ir]+,imm4

122

POP %ir

123

EPSON 119

125

Return and skip 2 cycles

126

C 3210 r

126

C 3210 [ir]

127

RR [%ir]

128

EPSON 123

129

SBC %r,[%ir]+

131

SBC [%ir]+,%r

132

SBC [%ir]+,imm4

133

SBC %B,[%ir]+,n4

134

SBC [%ir]+,%B,n4

135

SBC [%ir]+,0,n4

136

EPSON 131

137

SLL [%ir]

138

EPSON 133

139

EPSON 135

141

SUB %r,[%ir]

142

SUB [%ir],%r

143

SUB [%ir]+,imm4

144

TST [addr6],imm2

145

EPSON 141

147

XOR [%ir]+,imm4

149

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