4559 datasheet(103/148 Pages) RENESAS

103 / 148 page

Rev.1.04

Aug 23, 2007

Page 103 of 146

REJ03B0188-0104

4559 Group

MACHINE INSTRUCTIONS (INDEX BY ALPHABET) (continued)

T2HAB

(Transfer data to register R2H from Accumulator and register B)

Instruc-

tion

code

Number of

words

Number of

cycles

Flag CY

Skip condition

001

00 2 29 4 16

Opera-

tion:

(R2H7

−R2H4) ← (B)

(R2H3

−R2H0) ← (A)

Grouping:

Timer operation

Description: Transfers the contents of register B to the high-order 4 bits

of timer 2 and timer 2 reload register R2H. Transfers the

contents of register A to the low-order 4 bits of timer 2 and

timer 2 reload register R2H.

T2R2L

(Transfer data to timer 2 from register R2L)

Instruc-

tion

code

Number of

words

Number of

cycles

Flag CY

Skip condition

001

01 2 29 5 16

Opera-

tion:

(T27

−T20) ← (R2L7−R2L0)

Grouping:

Timer operation

Description: Transfers the contents of reload register R2L to timer 2.

TAB

(Transfer data to Accumulator from register B)

Instruc-

tion

code

Number of

words

Number of

cycles

Flag CY

Skip condition

001

10 2 01 E 16

Opera-

tion:

(A)

← (B)

Grouping:

Description: Transfers the contents of register B to register A.

TAB1

(Transfer data to Accumulator and register B from timer 1)

Instruc-

tion

code

Number of

words

Number of

cycles

Flag CY

Skip condition

111

00 2 27 0 16

Opera-

tion:

(B)

← (T17−T14)

(A)

← (T13−T10)

Grouping:

Timer operation

Description: Transfers the high-order 4 bits (T17

−T14) of timer 1 to reg-

ister B.

Transfers the low-order 4 bits (T13

−T10) of timer 1 to regis-

ter A.

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