參數(shù)資料
型號(hào)： UPSD3214AV-24T1T
廠商： 意法半導(dǎo)體
英文描述： Flash Programmable System Devices with 8032 Microcontroller Core and 64Kbit SRAM
中文描述： 閃存可編程系統(tǒng)設(shè)備與8032微控制器核心和64Kbit SRAM的
文件頁(yè)數(shù)： 111/176頁(yè)
文件大小： 1081K
代理商： UPSD3214AV-24T1T
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μ
PSD323X
Toggle Flag (DQ6).
The Flash memory offers an-
other way for determining when theProgram cycle
is completed.During the internal WRITE operation
and when either the 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 internal cycle is complete, the toggling
stops and the data READ on the Data Bus D0-D7
is the addressed memory byte. 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.
I
The Toggle Flag Bit (DQ6) is effective after the
fourth WRITE pulse (for a Program instruction)
or after the sixth WRITE pulse (for an Erase
instruction).
I
If the byte to be programmed belongs to a
protected Flash memory sector, the instruction
is ignored.
I
If all the Flash memory sectors selected for
erasure are protected, the Toggle Flag Bit
(DQ6) toggles to ’0’for about 100
μ
s 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 Program, Sector Erase, or Bulk
Erase cycle.
In thecase of Flash memory programming, theEr-
ror FlagBit (DQ5)indicates theattempt to program
a Flash memory bit from the programmed state,
’0’, to the erased state, ’1,’ which is not valid. The
Error Flag Bit (DQ5) may also indicate a Time-out
condition while attempting to program a byte.
In caseof an error ina Flashmemory Sector Erase
or ByteProgram cycle, the Flash memory sector in
which the error occurred or to which the pro-
grammed byte belongs must no longer be used.
Other Flash memory sectors may still be used.
The Error Flag Bit (DQ5) is reset after a Reset
Flash instruction.
Erase Time-out Flag (DQ3).
The Erase
out Flag Bit (DQ3) reflects the time-out period al-
lowed between two consecutive Sector Erase in-
structions. The Erase Time-out Flag Bit (DQ3) is
reset to ’0’after a Sector Erasecycle for a time pe-
riod of 100
μ
s + 20% unless an additional Sector
Erase instruction is decoded. After this time peri-
od, or when the additional Sector Erase instruction
is decoded, the Erase Time-out Flag Bit (DQ3) is
set to ’1.’
Time-
Table 86. Status Bit
Note: 1. X = Not guaranteed value, can be read either ’1’or ’0.’
2. DQ7-DQ0 represent the Data Bus bits, D7-D0.
3. FS0-FS7 and CSBOOT0-CSBOOT3 are active High.
Functional Block
FS0-FS7/CSBOOT0-
CSBOOT3
DQ7
DQ6
DQ5
DQ4
DQ3
DQ2
DQ1
DQ0
Flash Memory
V
IH
Data
Polling
Toggle
Flag
Error
Flag
X
Erase
Time-
out
X
X
X
相關(guān)PDF資料
PDF描述
UPSD3214AV-24U1T Flash Programmable System Devices with 8032 Microcontroller Core and 64Kbit SRAM
UPSD3214AV-24U6T Flash Programmable System Devices with 8032 Microcontroller Core and 64Kbit SRAM
UPSD3233BV-40T6T Flash Programmable System Devices with 8032 Microcontroller Core and 64Kbit SRAM
UPSD3233BV-40U1T Flash Programmable System Devices with 8032 Microcontroller Core and 64Kbit SRAM
uPSD3233 Flash Programmable System Device with 8032 Microcontroller Core(嵌入高速“8032微控制器核”的Flash型可編程系統(tǒng)器)
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
UPSD3214AV-24T6 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Flash Programmable System Device with 8032 Microcontroller Core
UPSD3214AV-24T6T 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Flash Programmable System Device with 8032 Microcontroller Core
UPSD3214AV-24U1 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Flash Programmable System Device with 8032 Microcontroller Core
UPSD3214AV-24U1T 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Flash Programmable System Devices with 8032 Microcontroller Core and 64Kbit SRAM
UPSD3214AV-24U6 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Flash Programmable System Device with 8032 Microcontroller Core
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