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參數(shù)資料
| 型號： | FTS64K |
| 廠商： | 飛思卡爾半導體(中國)有限公司 |
| 英文描述： | 50/MDR/RECP/VERT PRS FIT/M2.6/SCW/30 MIN |
| 中文描述： | 64K的快閃記憶體字節(jié) |
| 文件頁數(shù)： | 34/44頁 |
| 文件大?。?/td> | 401K |
| 代理商： | FTS64K |
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FTS64K Block User Guide — Version V01.00
34
4.1.3 Valid Flash Commands
Table 4-1
summarizes the valid Flash User commands. Also shown are the effects of the commands on
the Flash
Table 4-1 Valid Flash Commands
WARNING
It is not permitted to program a Flash word without first erasing the sector in which that word
resides.
4.1.4 Illegal Flash Operations
The ACCERR flag will be set during the command write sequence if any of the following illegal
operations are performed causing the command write sequence to immediately abort:
1.
Writing to the Flash address space before initializing FCLKDIV.
2.
Writingtothe Flash address spaceinthe range $8000-$BFFFwhen PPAGEregister doesnotselect
a 16K bytes page in the Flash block.
3.
Writing a misaligned word or a byte to the valid Flash address space.
4.
Writing to the Flash address space while CBEIF is not set.
5.
Writing a second word to the Flash address space before executing a program or erase command on
the previously written word.
6.
Writing to any Flash register other than FCMD after writing a word to the Flash address space.
7.
Writing a second command to the FCMD register before executing the previously written
command.
FCMD
Meaning
Flash
$05
Erase
Verify
Verify all memory bytes of the Flash block
are erased.
If the array is erased the BLANK bit will set in
the FSTAT register, upon command
completion.
$20
Program
Program a word (two bytes).
$40
Sector
Erase
Erase 256 words of Flash.
$41
Mass
Erase
Erase all the Flash array.
A mass erase of the full block is only possible
when FPLDIS, FPHDIS and FPOPEN are
set.
F
For More Information On This Product,
Go to: www.freescale.com
n
.
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