40
CHAPTER 3 CPU AND CONTROL UNITS
3.4
Data Structure
The MB91260B series uses the following two data ordering methods:
• Bit ordering
• Byte ordering
■
Bit Ordering
The FR family uses the little endian method for bit ordering.
Figure 3.4-1 Bit Ordering
■
Byte Ordering
The FR family uses the big endian method for byte ordering.
Figure 3.4-2 Byte Ordering
bit
31
29
27
25
23
21
19
17
15
13
11
9
7
5
3
1
30
28
26
24
22
20
18
16
14
12
10
8
6
4
2
0
MSB
LSB
MSB
LSB
bit31
23
15
7
0
10101010
B
11001100
B
11111111
B
00010001
B
11001100
B
11111111
B
00010001
B
Address (n + 1)
Address (n + 2)
Address (n + 3)
Address n
10101010
B
0
bit7
Memory
Summary of Contents for FR60Lite
Page 3: ......
Page 5: ......
Page 115: ...100 CHAPTER 3 CPU AND CONTROL UNITS ...
Page 127: ...112 CHAPTER 4 I O PORTS ...
Page 143: ...128 CHAPTER 5 INTERRUPT CONTROLLER ...
Page 155: ...140 CHAPTER 6 EXTERNAL INTERRUPT AND NMI CONTROLLER ...
Page 197: ...182 CHAPTER 9 PPG Programmable Pulse Generator ...
Page 337: ...322 CHAPTER 13 UART ...
Page 417: ...402 CHAPTER 16 DMAC DMA Controller ...
Page 445: ...430 CHAPTER 17 FLASH MEMORY ...
Page 451: ...436 CHAPTER 18 SERIAL PROGRAMMING CONNECTION ...
Page 493: ...478 APPENDIX F Precautions on Handling ...
Page 494: ...479 INDEX INDEX The index follows on the next page This is listed in alphabetic order ...
Page 507: ...492 INDEX ...
Page 509: ......