EM78P915

8-bit Micro-controller

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* This specification is subject to be changed without notice.

2005/12/21 (V2.0)

Address

10

11

12

13

14

15

16

17

18

19

1A

1B

1C

1D

1E

1F

general purpose regigter 10

general purpose regigter 11

general purpose regigter 12

general purpose regigter 13

general purpose regigter 14

general purpose regigter 15

general purpose regigter 16

general purpose regigter 17

general purpose regigter 18

general purpose regigter 19

general purpose regigter 1A

general purpose regigter 1B

general purpose regigter 1C

general purpose regigter 1D

general purpose regigter 1E

general purpose regigter 1F

Figure 6, general purpose registers 10 ~ 1F

20

21

22

3E

3F

Address

Bank 0

general purpose regigter 20

general purpose regigter 21

general purpose regigter 22

general purpose regigter 3E

general purpose regigter 3F

Bank 1

general purpose regigter 20

general purpose regigter 21

general purpose regigter 22

general purpose regigter 3E

general purpose regigter 3F

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Bank 2

general purpose regigter 20

general purpose regigter 21

general purpose regigter 22

general purpose regigter 3E

general purpose regigter 3F

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Bank 3

general purpose regigter 20

general purpose regigter 21

general purpose regigter 22

general purpose regigter 3E

general purpose regigter 3F

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Figure 7, general purpose registers 20 ~ 3F in Bank0/1/2/3

In figure 4 and 5, if user want to read/write one or more of these registers to enable some functions, user must take care of

the page number of operational register page and special purpose register page. It must be changed to the proper page number

to avoid read/write error occurring.

In figure 6, general purpose registers 10~1F can be read/write anytime without changing operational register pages and

special purpose register pages.

In figure 7, general purpose registers 20~3F are the similar to general purpose registers 10~1F, but user must take care of

bank0/1/2/3 to avoid read/write error occurring.