參數(shù)資料
型號(hào)： UPSD3423E
廠商： 意法半導(dǎo)體
英文描述： High Speed CMOS Logic Non-Inverting Octal Buffer/Line Drivers with 3-State Outputs 20-SOIC -55 to 125
中文描述： Turbo Plus系列高速渦輪8032 USB和可編程邏輯控制器
文件頁(yè)數(shù)： 181/264頁(yè)
文件大小： 4320K
代理商： UPSD3423E
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uPSD34xx - PSD MODULE
Error Flag (DQ5).
During a normal program or
erase operation, 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 operations.
In the case of Flash memory programming, DQ5
Bit indicates an attempt to program a Flash mem-
ory bit from the programmed state of '0,' to the
erased state of 1, which is not valid. DQ5 may also
indicate a particular Flash cell is damaged and
cannot be programmed.
In case of an error in a Flash memory sector erase
or byte program operation, the Flash memory sec-
tor 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.
DQ5 is reset after a Reset Flash instruction se-
quence.
Erase Time-out Flag (DQ3).
The Erase Time-
out Flag Bit (DQ3) reflects the time-out period al-
lowed between two consecutive sector erase in-
struction sequence bytes. If multiple sector erase
commands are desired, the additional sector
erase commands (30h) must be sent by the 8032
within 80us after the previous sector erase com-
mand. DQ3 is 0 before this time period has ex-
pired, indicating it is OK to issue additional sector
erase commands. DQ3 will go to logic ’1’ if the time
has been longer than 80μs since the previous sec-
tor erase command (time has expired), indication
that is not OK to send another sector erase com-
mand. In this case, the 8032 must start a new sec-
tor erase instruction sequence (unlock and
command) beginning again after the current sec-
tor erase operation has completed.
Programming Flash Memory.
When a byte of
Flash memory is programmed, individual bits are
programmed to logic '0.' cannot program a bit in
Flash memory to a logic ’1’ once it has been pro-
grammed to a logic '0.' A bit must be erased to log-
ic ’1’, and programmed to logic '0.' That means
Flash memory must be erased prior to being pro-
grammed. A byte of Flash memory is erased to all
1s (FFh). The 8032 may erase the entire Flash
memory array all at once, or erase individual sec-
tor-by-sector, but not erase byte-by-byte. Howev-
er, even though the Flash memories cannot be
erased
byte-by-byte, the 8032 may
program
Flash
memory byte-by-byte. This means the 8032 does
not need to program group of bytes (64, 128, etc.)
at one time, like some Flash memories.
Each Flash memory requires the 8032 to send an
instruction sequence to program a byte or to erase
sectors (see
Table 107., page 179
).
If the byte to be programmed is in a protected
Flash memory sector, the instruction sequence is
ignored.
IMPORTANT:
It is mandatory that a chip-select
signal is active for the Flash sector where a pro-
gramming instruction sequence is targeted. The
user must make sure that the correct chip-select
equation, FSx or CSBOOTx specified in PSDsoft
Express matches the address range that the 8032
firmware is accessing, otherwise the instruction
sequence will not be recognized by the Flash ar-
ray. If memory paging is used, be sure that the
8032 firmware sets the page register to the correct
page number before issuing an instruction se-
quence to the Flash memory segment on a partic-
ular memory page, otherwise the correct sector
select signal will not become active.
Once the 8032 issues a Flash memory program or
erase instruction sequence, it must check the sta-
tus bits for completion. The embedded algorithms
that are invoked inside a Flash memory array pro-
vide several ways to give status to the 8032. Sta-
tus may be checked using any of three methods:
Data Polling, Data Toggle, or Ready/Busy (pin
PC3).
Table 108. Flash Memory Status Bit Definition
Note: 1. X = Not guaranteed value, can be read either '1' or '0.'
2. DQ7-DQ0 represent the 8032 Data Bus Bits, D7-D0.
Functional Block
FSx, or CSBOOTx
DQ7
DQ6
DQ5
DQ4
DQ3
DQ2
DQ1
DQ0
Flash Memory
Active (the desired
segment is selected)
Data
Polling
Toggle
Flag
Error
Flag
X
Erase
Time-
out
X
X
X
相關(guān)PDF資料
PDF描述
UPSD3424 High Speed CMOS Logic Non-Inverting Octal Buffer/Line Drivers with 3-State Outputs 20-SOIC -55 to 125
UPSD3424E High Speed CMOS Logic Non-Inverting Octal Buffer/Line Drivers with 3-State Outputs 20-SOIC -55 to 125
UPSD3433 Turbo Plus Series Fast Turbo 8032 MCU with USB and Programmable Logic
UPSD3433E Turbo Plus Series Fast Turbo 8032 MCU with USB and Programmable Logic
UPSD3423E-40T6T Turbo Plus Series Fast Turbo 8032 MCU with USB and Programmable Logic
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
UPSD3433E-40T6 功能描述:8位微控制器 -MCU 8 BITS MICROCONTR RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時(shí)鐘頻率:50 MHz 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT
UPSD3433E-40U6 功能描述:8位微控制器 -MCU 8 BITS MICROCONTR RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時(shí)鐘頻率:50 MHz 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT
UPSD3433EB40T6 功能描述:8位微控制器 -MCU Turbo 8032 MCU w/USB & Programmable Logic RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時(shí)鐘頻率:50 MHz 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT
UPSD3433EB40U6 功能描述:8位微控制器 -MCU uPSD34x Turbo Plus Fast Turbo 8032 MCU RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時(shí)鐘頻率:50 MHz 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT
UPSD3433EV-40T6 功能描述:8位微控制器 -MCU 8 BITS MICROCONTR RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時(shí)鐘頻率:50 MHz 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT
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