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Maxim Integrated High-Speed Microcontroller User Manual

Page 74

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High-Speed Microcontroller User’s Guide

Rev: 062210

74 of 176

INSTRUCTION

HEX

CODE

HSM

CLOCK

CYCLES

HSM TIME

at 25MHz

8051

CLOCK

CYCLES

8051 TIME

at 25MHz

HSM vs. 8051

SPEED

ADVANTAGE

RETI

32

16

640ns

24

960ns

1.5

AJMP addr 11

Hex code

Hex code = 01, 21, 41,
61, 81, A1, C1, or E1

Byte 1

12

480ns

24

960ns

2

LJMP addr 16

2

16

480ns

24

960ns

1.5

JMP @A+DPTR

73

12

480ns

24

960ns

2

SJMP rel

80

12

480ns

24

960ns

2

JZ rel

60

12

480ns

24

960ns

2

JNZ rel

70

12

480ns

24

960ns

2

JC rel

40

12

480ns

24

960ns

2

JNC rel

50

12

480ns

24

960ns

2

JB bit, rel

20

16

640ns

24

960ns

1.5

JNB bit, rel

30

16

640ns

24

960ns

1.5

JBC bit, rel

10

16

640ns

24

960ns

1.5

CJNE A, direct, rel

B5

16

640ns

24

960ns

1.5

CJNE A, #data, rel

B4

16

640ns

24

960ns

1.5

CJNE Rn, #data, rel

B8..BF

16

640ns

24

960ns

1.5

CJNE @Ri, #data, rel

B6..B7

16

640ns

24

960ns

1.5

DJNZ Rn, rel

D8..DF

12

480ns

24

960ns

2

DJNZ direct, rel

D5

16

640ns

24

960ns

1.5

NOP

00

4

160ns

12

480ns

3