PixArt Imaging Inc.

PAC107

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10

PixArt Imaging Inc.

V1.4, Aug, 2005

64K

Program

Memory

Space

64K

External

Data

Memory

Space

64K

0

64K

0

Program

Counter

Memory Organization

Special

Function

Register

Indirect

Addressing

RAM

Direct

&

Indirect

Addressing

RAM

Internal Data Memory

FFh

80h

7Fh

00h

07

06

05

04

03

02

01

00

Bank3

Bank2

Bank1

Bank0

08

09

0A

0B

0C

0D

0E

0F

17

16

15

14

13

12

11

10

18

19

1A

1B

1C

1D

1E

1F

07

26

25

24

23

22

21

20

2F

2E

2D

2C

2B

2A

29

28

3C

3B

3A

39

38

30

31

32

33

34

35

37

37

44

45

46

47

3F

3E

3D

43

4D

4C

4B

4A

49

48

40

41

42

57

4F

4E

5B

5A

59

58

50

51

52

53

54

55

56

5C

64

64

66

67

5F

5E

5D

6C

6B

6A

69

68

60

61

62

63

6D

6E

6F

77

76

75

74

73

72

71

70

78

79

7A

7B

7C

7D

7E

7F

(MSB)

(LSB)

FFh

80h

7Fh

2Fh

2Eh

2D

h

2C

h

2Bh

2Ah

29h

28h

27h

26h

25h

24h

23h

22h

21h

20h

1Fh

18h

17h

10h

0fh

08h

07h

00h

47

46

40

41

42

43

44

45

35

36

37

38

39

32

33

34

31

24

15

16

23

8

7

0

127

128

256

R7

R0

R0

R7

R0

R7

R7

R0

Indirect RAM

RAM Bit Addresses

Addressable Bits

20h-2Fh