Mitsubishi Electric M32R Series User Manual page 52

2
(3) Endian
The following shows the generally used endian methods and the M32R family endian.
Big endian
Little endian
Note: Even for bit big endian, H'01 is not B'10000000.
Figure 2.6.4 Endian Methods
MPU name
Endian
(Bit/Byte)
Address
Data
arrangement
Bit number
Ex:0x01234567
Note: The M32R's endian method is big endian for both bit and byte.
Figure 2.6.5 M32R Family Endian
Bit endian
(H'01)
MSB LSB
B'0000001
D0 D7
MSB LSB
B'0000001
D7 D0
7700 family
M16C family
Little/Little
+0 +1 +2 +3
MSB LSB
LL LH HL HH
31-24 23-16 15-8 7-0
.byte 67,45,23,01
2-10
Byte endian
(H'01234567)
MSB
H'01
H'23
HH
MSB
H'45
H'67
LL
Competition
Little/Big
+0 +1 +2 +3
MSB LSB
HH HL LH LL
31-24 23-16 15-8 7-0
.byte 01,23,45,67
2.6 Data Formats
LSB
H'45 H'67
HL LH LL
LSB
H'23 H'01
LH HL HH
M32R family
M16 family
Big/Big
+0 +1 +2 +3
MSB LSB
HH HL LH LL
0-7 8-15 16-23 24-31
.byte 01,23,45,67
Ver.0.10
CPU