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FTS64K bảng dữ liệu(PDF) 24 Page - Freescale Semiconductor, Inc

tên linh kiện FTS64K
Giải thích chi tiết về linh kiện  64k bytes of Flash memory
PDF  44 Pages
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nhà sản xuất  FREESCALE [Freescale Semiconductor, Inc]
Trang chủ  http://www.freescale.com
Logo FREESCALE - Freescale Semiconductor, Inc

FTS64K bảng dữ liệu(HTML) 24 Page - Freescale Semiconductor, Inc

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FTS64K Block User Guide — Version V01.00
24
NV6 — Non Volatile Flag Bit.
This bit is available as non-volatile flag.
3.3.6 FSTAT — Flash Status Register
The FSTAT register defines the Flash state machine command status and Flash array access, protection
and blank verify status.
Figure 3-7 Flash Status Register (FSTAT)
Register bits CBEIF, PVIOL and ACCERR are readable and writable, bits CCIF and BLANK are readable
and not writable, bits 3, 1 and 0 read zero and are not writable.
CBEIF — Command Buffer Empty Interrupt Flag.
The CBEIF flag indicates that the address, data and command buffers are empty so that a new
command sequence can be started. The CBEIF flag is cleared by writing a “1” to CBEIF. Writing a
“0” to the CBEIF flag has no effect on CBEIF but sets ACCERR, which can be used to abort a
command sequence. This bit, CBEIF, is used together with the enable bit CBEIE, to generate the
interrupt request (see also Figure 6-1).
1 = Buffers are ready to accept a new command.
0 = Buffers are full.
CCIF — Command Complete Interrupt Flag.
Table 3-6 Flash Lower Address Range Protection
FPLS
Protected
Address
Range
Protected Size
00
see Table 3-2
512 Bytes
01
1K
10
2K
11
4K
Register address BASE + $105
765
4
3210
R
CBEIF
CCIF
PVIOL
ACCERR
0
BLANK
00
W
Reset:
110
0
0000
= Unimplemented or Reserved
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com



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