參數(shù)資料
型號(hào)： FTS64K
廠商： 飛思卡爾半導(dǎo)體(中國(guó))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(yè)數(shù)： 25/44頁(yè)
文件大?。?/td> 401K
代理商： FTS64K
25
The CCIF flag indicates that there are no more commands pending. The CCIF flag is cleared when
CBEIFisclearandsetsautomaticallyuponcompletionofallactiveandpendingcommands.TheCCIF
flag does not set when an active commands completes and a pending command is fetched from the
command buffer. Writing to the CCIF flag has no effect. This bit, CCIF, is used together with the
enable bit CCIE, to generate the interrupt request (see also
Figure 6-1
).
1 = All commands are completed.
0 = Command in progress.
PVIOL — Protection Violation.
The PVIOL flag indicates an attempt was made to program or erase an address in a protected Flash
memory area. The PVIOL flag is cleared by writing a “1” to PVIOL. Writing a “0” to the PVIOL flag
has no effect on PVIOL. While PVIOL is set it is not possible to launch another command.
1 = A protection violation has occurred.
0 = No failure.
ACCERR — Flash Access Error.
The ACCERR flag indicates an illegal access to the selected Flash array. This can be either a violation
of the command sequence, issuing an illegal command (illegal combination of the CMDBx bits in the
FCMDregister)ortheexecutionofaCPUSTOPinstructionwhileacommandisexecuting(CCIF=0).
The ACCERR flag is cleared by writing a “1” to ACCERR. Writing a “0” to the ACCERR flag has no
effect on ACCERR. While ACCERR is set it is not possible to launch another command.
1 = Access error has occurred.
0 = No failure.
BLANK — Array has been verified as erased.
The BLANK flag indicates that an Erase Verify command has checked the Flash block and found it to
be blank. The BLANK flag is cleared by hardware when CBEIF is cleared as part of a new valid
command sequence. Writing to the BLANK flag has no effect on BLANK.
1 = Flash block verifies as erased.
0=IfanEraseVerifycommandhasbeenrequested,andtheCCIFflagisset,thenazeroinBLANK
indicates the Flash is not erased.
3.3.7 FCMD — Flash Command Register
The FCMD register defines the Flash commands.
Figure 3-8 Flash Command Buffer and Register (FCMD)
Register address BASE + $106
7
R
0
W
Reset:
0
6
5
4
0
3
0
2
1
0
0
CMDB6
CMDB5
CMDB2
CMDB0
0
0
0
0
0
0
0
F
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
n
.
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