Data Structure - Fujitsu MB91460 SERIES FR60 User Manual

7. Data Structure

FR60 has two data allocations as follows.
■ Bit Ordering
FR60 uses little endian as bit ordering.
bit
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
MSB
■ Byte Ordering
FR60 uses big endian as byte ordering.
n address
(n+1) address
(n+2) address
(n+3) address
Figure 7-1 Bit Structure of Bit Ordering
Figure 7-2 Bit Structure of Byte Ordering
MSB
Memory
bit31
10101010 11001100
bit
7 0
10101010
11001100
11111111
00010001
23 15 7
11111111 00010001
Chapter 4 CPU Architecture
7.Data Structure
LSB
LSB
0
109