HMS91C7134K 데이터 시트보기 (PDF) - Hynix Semiconductor

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HMS91C7134K

8-BIT SINGLE-CHIP MONITOR MICROCONTROLLERS

Hynix Semiconductor 

(5) Immediate constants addressing

The value of a constant can follow the opcode in Program mem-

ory.

Example;

HMS9xC7132 / HMS9xC7134

mov A, #100H.

(6)Indexed addressing

Only Program memory can be accessed with indexed addressing,

and it can only be read. This addressing mode is intended for

reading look-up tables in Program memory. A 16-bit base register

(either DPTR or PC) points to the base of the table, and the Ac-

cumulator is set up with the table entry number. The address of

the table entry in Program memory is formed by adding the Ac-

cumulator data to the base pointer.

Example;

movc A, @A+DPTR

ACC

3A

DPTR

1E73

PROG. MEMORY

~~

~~

1EADH

May.2001 ver1.1

23

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