MDT10P43

Spec

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2 of 10

2004/12/2 Ver. 1.0

5. Block Diagram

S ta c k T w o

Le v e ls

P ro g ra m

C o u n te rs

E xte rn a l X T

P o w e r o n R e s e t

P o w e r D o w n

R e s e t

R O M

5 1 2 ×1 4

In s tru c tio n

R e g is te r

In s tru c tio n

D e c o d e r

W o rk in g R e g is te r

A LU

R AM

2 4 ×8

S p e c ia l R e g is te r

C o n tro l

C irc u it

S ta tu s R e g is te r

P o rt A

P o rt B

D a ta

8 b it

9 b its

9 b its

1 4 b its

P o r t

P B 1 ~ P B 7

D0 ~D 7

P o rt

P A0 ~ P A

8 b it s

P or t

P B 0