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32174 Datasheet(PDF) 56 Page - Renesas Technology Corp

Part # 32174
Description  32-bit RISC Single-chip Microcomputers
PDF  881 Pages
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Manufacturer  RENESAS [Renesas Technology Corp]
Direct Link  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

32174 Datasheet(HTML) 56 Page - Renesas Technology Corp

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2
2-9
32170/32174 Group User's Manual (Rev. 2.1)
(2) Data formats in memory
Data sizes in memory are either byte (8 bits), halfword (16 bits), or word (32 bits). Byte data can
be located at any address. However, halfword data must be located at halfword boundaries
(where the LSB address bit = "0"), and word data must be located at word boundaries (where two
LSB address bits = "00"). If an attempt is made to access memory data across these halfword or
word boundaries, an address exception is generated.
Figure 2.6.3 Data Formats in Memory
CPU
2.6 Data Formats
Address
Byte
Halfword
Word
+ 0 address
+ 1 address
+ 2 address
+ 3 address
031
Byte
7
8
15 16
23 24
(MSB)
(LSB)
(MSB)
(LSB)
Byte
Byte
Byte
Halfword
Halfword
Word



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