參數(shù)資料
型號: DSM2150F5V-12T6
廠商: 意法半導體
元件分類: 數(shù)字信號處理
英文描述: DSM (Digital Signal Processor System Memory) for Analog Devices DSPs (3.3V Supply)
中文描述: 帝斯曼(數(shù)字信號處理器系統(tǒng)內(nèi)存)的ADI公司的DSP(3.3V電源)
文件頁數(shù): 21/73頁
文件大?。?/td> 1067K
代理商: DSM2150F5V-12T6
21/73
DSM2150F5V
Toggle Flag (DQ6)
The device offers an alternative way for determin-
ing when the Flash memory Program cycle is com-
pleted. During the internal WRITE operation and
when the Sector Select FS0-FS7 (or CSBOOT0-
CSBOOT3) is true, the Toggle Flag Bit (DQ6) tog-
gles from
0
to
1
and
1
to
0
on subsequent at-
tempts to read any byte of the memory. When the
DSM2150F5V is configured to operate in 16-bit
mode, status READs must occur at even address-
es, DQ8 - DQ15 are insignificant and can be ig-
nored.
When the internal cycle is complete, the toggling
stops and the data READ on the Data Bus is the
addressed memory byte/word. The device is now
accessible for a new READ or WRITE operation.
The cycle is finished when two successive READs
yield the same output data.
The Toggle Flag Bit (DQ6) is effective after the
fourth WRITE operation (for a Program
instruction sequence) or after the sixth WRITE
operation (for an Erase instruction sequence).
If the byte/word to be programmed belongs to
a protected Flash memory sector, the
instruction sequence is ignored.
If all the Flash memory sectors selected for
erasure are protected, the Toggle Flag Bit
(DQ6) toggles to
0
for t
TIMOUT
and then
returns to the previous addressed byte.
Error Flag (DQ5)
During a normal Program or Erase cycle, the Error
Flag Bit (DQ5) is to
0.
This bit is set to
1
when
there is a failure during Flash memory byte/word
Program operation, Sector Erase, or Bulk Erase
operation.
In the case of Flash memory programming, the Er-
ror Flag Bit (DQ5) indicates the attempt to program
a Flash memory bit from the programmed state,
logic
0,
to the erased state, logic
1
, which is not
valid. The Error Flag Bit (DQ5) may also indicate a
Time-out condition while attempting to program a
byte/word.
In case of an error in a Flash memory Sector Erase
or byte/word Program cycle, the Flash memory
sector in which the error occurred or to which the
programmed byte/word belongs must no longer be
used. Other Flash memory sectors may still be
used. The Error Flag Bit (DQ5) is reset after a Re-
set Flash instruction sequence.
Erase Time-out Flag (DQ3)
The Erase Time-out Flag Bit (DQ3) reflects the
time-out period allowed between two consecutive
Sector Erase instruction sequence bytes/words.
The Erase Time-out Flag Bit (DQ3) is reset to
0
after a Sector Erase cycle for a time period t
TIMOUT
unless an additional Sector Erase instruction se-
quence is decoded. After this time period, or when
the additional Sector Erase instruction sequence
is decoded, the Erase Time-out Flag Bit (DQ3) is
set to
1.
相關(guān)PDF資料
PDF描述
DSM2180F3 DSM (Digital Signal Processor System Memory) For Analog Devices ADSP-218X Family (5V Supply)
DSM2180F315K6 DSM (Digital Signal Processor System Memory) For Analog Devices ADSP-218X Family (5V Supply)
DSM2180F315T6 DSM (Digital Signal Processor System Memory) For Analog Devices ADSP-218X Family (5V Supply)
DSM2180F390K6 DSM (Digital Signal Processor System Memory) For Analog Devices ADSP-218X Family (5V Supply)
DSM2180F390T6 DSM (Digital Signal Processor System Memory) For Analog Devices ADSP-218X Family (5V Supply)
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
DSM2150F5V-12T6T 制造商:未知廠家 制造商全稱:未知廠家 功能描述:EEPROM
DSM2180F3 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:DSM (Digital Signal Processor System Memory) for analog devices ADSP-218X family (5 V supply)
DSM2180F3_08 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:DSM (Digital Signal Processor System Memory) for analog devices ADSP-218X family (5 V supply)
DSM2180F315K6 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:DSM (Digital Signal Processor System Memory) For Analog Devices ADSP-218X Family (3.3V Supply)
DSM2180F3-15K6 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:DSM (Digital Signal Processor System Memory) for analog devices ADSP-218X family (5 V supply)