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37
CHAPTER 3 CPU
3.5
Memory Location of Multi-byte Data
Multi-byte data is written to memory sequentially from the lower address. If multi-byte
data is 32-bit data, the lower 16 bits are transferred followed by the upper 16 bits.
If a reset signal is input immediately after the low-order data is written, the high-order
data may not be written.
■
Storage of Multi-byte Data in RAM
Figure 3.5-1 shows the data configuration of multi-byte data in memory. The lower 8 bits of the data is
located at address n, and subsequent data is located at address n + 1, address n + 2, address n + 3 and so on,
in this sequence.
Figure 3.5-1 Storage of Multi-byte Data in RAM
■
Storage of Multi-byte Operand
Figure 3.5-2 shows the configuration of a multi-byte operand in memory.
Figure 3.5-2 Storage of a Multi-byte Operand
01010101
B
11001100
B
11111111
B
00010100
B
H
L
Address ‘n’
01010101
B
11001100
B
11111111
B
00010100
B
MSB
LSB
12
H
34
H
56
H
63
H
H
L
Address ‘n’
JMPP 12 34 56H
JMPP 123456H
Содержание MB90460 Series
Страница 1: ...The following document contains information on Cypress products ...
Страница 3: ......
Страница 5: ......
Страница 9: ...iv ...
Страница 41: ...22 CHAPTER 1 OVERVIEW ...
Страница 45: ...26 CHAPTER 2 NOTES ON HANDLING DEVICES ...
Страница 83: ...64 CHAPTER 3 CPU ...
Страница 95: ...76 CHAPTER 4 RESET ...
Страница 107: ...88 CHAPTER 5 CLOCK ...
Страница 131: ...112 CHAPTER 6 LOW POWER CONSUMPTION MODE ...
Страница 175: ...156 CHAPTER 7 INTERRUPT ...
Страница 181: ...162 CHAPTER 8 MODE SETTING ...
Страница 223: ...204 CHAPTER 9 I O PORT ...
Страница 237: ...218 CHAPTER 10 TIME BASE TIMER ...
Страница 247: ...228 CHAPTER 11 WATCHDOG TIMER ...
Страница 275: ...256 CHAPTER 12 16 BIT RELOAD TIMER ...
Страница 373: ...354 CHAPTER 14 MULTI FUNCTIONAL TIMER ...
Страница 485: ...466 CHAPTER 16 PWC Timer ...
Страница 531: ...512 CHAPTER 17 UART ...
Страница 559: ...540 CHAPTER 19 DELAYED INTERRUPT GENERATOR MODULE ...
Страница 589: ...570 CHAPTER 20 8 10 BIT A D CONVERTER ...
Страница 601: ...582 CHAPTER 21 ROM CORRECTION FUNCTION ...
Страница 633: ...614 CHAPTER 23 512K 1024K BIT FLASH MEMORY ...
Страница 645: ...626 CHAPTER 24 EXAMPLE OF F2 MC 16LX MB90F462 F462A F463A CONNECTION FOR SERIAL WRITING ...
Страница 715: ...696 APPENDIX ...
Страница 716: ...697 INDEX INDEX The index follows on the next page This is listed in alphabetic order ...
Страница 739: ......