4502 datasheet(69/116 Pages) RENESAS

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4502 Group

Rev.3.01

2005.02.02

page 69 of 112

REJ03B0105-0301

OP2A (Output port P2 from Accumulator)

1000100010

222

–

Grouping:

Input/Output operation

Description: Outputs the contents of the low-order 2 bits

(A1, A0) of register A to port P2.

Operation:

(P21, P20)

← (A1, A0)

OP1A (Output port P1 from Accumulator)

1000100001

221

–

Grouping:

Input/Output operation

Description: Outputs the contents of register A to port

P1.

Operation:

(P1)

← (A)

OR (logical OR between accumulator and memory)

0000011001

019

–

Grouping:

Arithmetic operation

Description: Takes the OR operation between the con-

tents of register A and the contents of

M(DP), and stores the result in register A.

Operation:

(A)

← (A) OR (M(DP))

OP3A (Output port P3 from Accumulator)

1000100011

223

–

Grouping:

Input/Output operation

Description: Outputs the contents of the low-order 2 bits

(A1, A0) of register A to port P3.

Operation:

(P31, P30)

← (A1, A0)

MACHINE INSTRUCTIONS (INDEX BY ALPHABET) (continued)

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