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32172 Datasheet(PDF) 55 Page - Renesas Technology Corp

Part # 32172
Description  32-bit RISC Single-chip Microcomputers
PDF  875 Pages
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Manufacturer  RENESAS [Renesas Technology Corp]
Direct Link  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

32172 Datasheet(HTML) 55 Page - Renesas Technology Corp

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2
2-10
Rev.1.0
CPU
2.6 Data Formats
Figure 2.6.5 M32R Family Endian
Little/Little
LL
LH
HL
HH
Big/Big
HH
HL
LH
LL
Little/Big
HH
HL
LH
LL
Endian
(Bit/Byte)
Data
arrangement
MPU name
7700 family
M16C family
Competition
M32R family
M16 family
7-0
31-24
15-8
23-16
0-7
24-31
8-15
16-23
Bit number
+0
+1
+2
+3
+0
+1
+2
+3
+0
+1
+2
+3
Address
MSB
LSB
MSB
LSB
MSB
LSB
Ex:0x01234567
.byte 67,45,23,01
.byte 01,23,45,67
.byte 01,23,45,67
Note: The M32R's endian method is big endian for both bit and byte.
7-0
31-24
15-8
23-16
Figure 2.6.4 Endian Methods
Bit endian
Byte endian
Big endian
Little endian
Note: Even for bit big endian, H'01 is not B'10000000.
(H'01)
(H'01234567)
MSB
LSB
HH
HL
LH
LL
H'01
H'23
H'45
H'67
MSB
LSB
LL
LH
HL
HH
H'67
H'45
H'23
H'01
MSB
LSB
B'0000001
D0
D7
MSB
LSB
B'0000001
D7
D0
(3) Endian
The following shows the generally used endian methods and the M32R family endian.



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