參數(shù)資料
型號: M34570ED
廠商: Mitsubishi Electric Corporation
英文描述: SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER
中文描述: 單芯片4位微機(jī)的CMOS
文件頁數(shù): 12/68頁
文件大?。?/td> 319K
代理商: M34570ED
12
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
Product
M34570Mx
M34570Ex
RAM size
128 words
4 bits (512 bits)
Fig. 12 RAM map
R
Register Z
Register X
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
0
0
1
7
RAM 128 words
4 bits (512 bits)
2
3
6
128 words
...
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