4570 datasheet(13/69 Pages) RENESAS

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4570 데이터시트(PDF) 13 Page - Renesas Technology Corp

부품명	4570

상세설명	SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER

PDF	69 Pages

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제조업체	RENESAS [Renesas Technology Corp]

홈페이지	http://www.renesas.com

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13 / 69 page

MITSUBISHI MICROCOMPUTERS

4570 Group

SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER

DATA MEMORY (RAM)

1 word of RAM is composed of 4 bits, but 1-bit manipulation

(with the SB j, RB j, and SZB j instructions) is enabled for the

entire memory area. A RAM address is specified by a data

pointer. The data pointer consists of registers Z, X, and Y. Set a

value to the data pointer certainly when executing an instruction

to access RAM.

Table 2 shows the RAM size. Figure 12 shows the RAM map.

Table 2 RAM size

RAM size

128 words ! 4 bits (512 bits)

Fig. 12 RAM map

Product

M34570Mx

M34570Ex

0 1

RAM 128 words ! 4 bits (512 bits)

128 words

...

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