SMBP2501BPB datasheet(32/107 Pages) SONIX

номер детали	SMBP2501BPB

подробное описание детали	8-Bit Micro-Controller

PDF	107 Pages

Scroll/Zoom	100%

производитель	SONIX [SONiX Technology Company]

домашняя страница	http://www.sonix.com.tw

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32 / 107 page

SN8P2501B

8-Bit Micro-Controller

SONiX TECHNOLOGY CO., LTD

Page 32

Version 2.1

2.2 ADDRESSING MODE

2.2.1 IMMEDIATE ADDRESSING MODE

The immediate addressing mode uses an immediate data to set up the location in ACC or specific RAM.



Example: Move the immediate data 12H to ACC.

MOV

A, #12H

; To set an immediate data 12H into ACC.



Example: Move the immediate data 12H to R register.

B0MOV

R, #12H

; To set an immediate data 12H into R register.



Note: In immediate addressing mode application, the specific RAM must be 0x80~0x87 working register.

2.2.2 DIRECTLY ADDRESSING MODE

The directly addressing mode moves the content of RAM location in or out of ACC.



Example: Move 0x12 RAM location data into ACC.

B0MOV

A, 12H

; To get a content of RAM location 0x12 of bank 0 and save in

ACC.



Example: Move ACC data into 0x12 RAM location.

B0MOV

12H, A

; To get a content of ACC and save in RAM location 12H of

bank 0.

2.2.3 INDIRECTLY ADDRESSING MODE

The indirectly addressing mode is to access the memory by the data pointer registers (Y/Z).



Example: Indirectly addressing mode with @YZ register.

B0MOV

Y, #0

; To clear Y register to access RAM bank 0.

B0MOV

Z, #12H

; To set an immediate data 12H into Z register.

B0MOV

A, @YZ

; Use data pointer @YZ reads a data from RAM location

; 012H into ACC.

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