- 您現(xiàn)在的位置：買(mǎi)賣(mài)IC網(wǎng) > PDF目錄368166 > PSD4135G1V-70U (意法半導(dǎo)體) Flash In-System-Programmable Peripherals for 16-Bit MCUs PDF資料下載
參數(shù)資料
| 型號(hào)： | PSD4135G1V-70U |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | Flash In-System-Programmable Peripherals for 16-Bit MCUs |
| 中文描述： | Flash在系統(tǒng)可編程外設(shè)的16位微控制器 |
| 文件頁(yè)數(shù)： | 21/93頁(yè) |
| 文件大?。?/td> | 503K |
| 代理商： | PSD4135G1V-70U |
第1頁(yè)第2頁(yè)第3頁(yè)第4頁(yè)第5頁(yè)第6頁(yè)第7頁(yè)第8頁(yè)第9頁(yè)第10頁(yè)第11頁(yè)第12頁(yè)第13頁(yè)第14頁(yè)第15頁(yè)第16頁(yè)第17頁(yè)第18頁(yè)第19頁(yè)第20頁(yè)當(dāng)前第21頁(yè)第22頁(yè)第23頁(yè)第24頁(yè)第25頁(yè)第26頁(yè)第27頁(yè)第28頁(yè)第29頁(yè)第30頁(yè)第31頁(yè)第32頁(yè)第33頁(yè)第34頁(yè)第35頁(yè)第36頁(yè)第37頁(yè)第38頁(yè)第39頁(yè)第40頁(yè)第41頁(yè)第42頁(yè)第43頁(yè)第44頁(yè)第45頁(yè)第46頁(yè)第47頁(yè)第48頁(yè)第49頁(yè)第50頁(yè)第51頁(yè)第52頁(yè)第53頁(yè)第54頁(yè)第55頁(yè)第56頁(yè)第57頁(yè)第58頁(yè)第59頁(yè)第60頁(yè)第61頁(yè)第62頁(yè)第63頁(yè)第64頁(yè)第65頁(yè)第66頁(yè)第67頁(yè)第68頁(yè)第69頁(yè)第70頁(yè)第71頁(yè)第72頁(yè)第73頁(yè)第74頁(yè)第75頁(yè)第76頁(yè)第77頁(yè)第78頁(yè)第79頁(yè)第80頁(yè)第81頁(yè)第82頁(yè)第83頁(yè)第84頁(yè)第85頁(yè)第86頁(yè)第87頁(yè)第88頁(yè)第89頁(yè)第90頁(yè)第91頁(yè)第92頁(yè)第93頁(yè)
PSD4000 Series
Preliminary Information
18
The
PSD4000
Functional
Blocks
(cont.)
9.1.1.4 Power-Up Condition
The PSD4000 internal logic is reset upon power-up to the read array mode. The FSi and
CSBOOTi select signals, along with the write strobe signal, must be in the false state
during power-up for maximum security of the data contents and to remove the possibility of
data being written on the first edge of a write strobe signal. Any write cycle initiation is
locked when V
CC
is below VLKO.
9.1.1.5 Read
Under typical conditions, the microcontroller may read the Flash, or secondary Flash
memories using read operations just as it would a ROM or RAM device. Alternately, the
microcontoller may use read operations to obtain status information about a program or
erase operation in progress. Lastly, the microcontroller may use instructions to read
special data from these memories. The following sections describe these read functions.
9.1.1.5.1 Read the Contents of Memory
Main Flash and secodary Flash memories are placed in the read array mode after
power-up, chip reset, or a Reset Flash instruction (see Table 8). The microcontroller can
read the memory contents of main Flash or secondary Flash by using read operations any
time the read operation is not part of an instruction sequence.
9.1.1.5.2 Read the Main Flash Memory Identifier
The main Flash memory identifier is read with an instruction composed of 4 operations:
3 specific write operations and a read operation (see Table 8). The PSD4000 main Flash
memory ID is E8h. The Secondary Flash does not support this instruction.
9.1.1.5.3 Read the Flash Memory Sector Protection Status
The Flash memory sector protection status is read with an instruction composed of 4
operations: 3 specific write operations and a read operation (see Table 8). The read
operation will produce 01h if the Flash sector is protected, or 00h if the sector is not
protected.
The sector protection status for all NVM blocks (main Flash or secondary Flash) can also
be read by the microcontroller accessing the Flash Protection and Flash Boot Protection
registers in PSD I/O space. See section 9.1.1.9.1 for register definitions.
9.1.1.5.4 Read the Erase/Program Status Bits
The PSD4000 provides several status bits to be used by the microcontroller to confirm
the completion of an erase or programming instruction of Flash memory. These status bits
minimize the time that the microcontroller spends performing these tasks and are defined
in Table 9. The status byte resides in even location and can be read as many times as
needed. Please note DQ15-8 is even byte for Motorola MCUs with 16 bit data bus.
Table 9. Status Bits
FSi/
CSBOOTi
DQ7
DQ6
DQ5
DQ4
DQ3
Erase
Time-
out
DQ2
DQ1
DQ0
Data
Polling
Toggle
Flag
Error
Flag
Flash
V
IH
X
X
X
X
NOTES:
1. X = Not guaranteed value, can be read either 1 or 0.
2. DQ15-DQ0 represent the Data Bus bits, D15-D0.
3. FSi/CSBOOTi are active high.
For Flash memory, the microcontroller can perform a read operation to obtain these status
bits while an erase or program instruction is being executed by the embedded algorithm.
See section 9.1.1.6 for details.
FSi/
CSBOOTi
DQ15
DQ14
DQ13
DQ12
DQ11
Erase
Time-
out
DQ10
DQ9
DQ8
Data
Polling
Toggle
Flag
Error
Flag
Flash
V
IH
X
X
X
X
Table 9A. Status Bits for Motorola
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| PSD4135G1V-70UI | Flash In-System-Programmable Peripherals for 16-Bit MCUs |
| PSD4135G1V-90B81 | Flash In-System-Programmable Peripherals for 16-Bit MCUs |
| PSD4135G1V-90B81I | Flash In-System-Programmable Peripherals for 16-Bit MCUs |
| PSD4135G1V-90J | Flash In-System-Programmable Peripherals for 16-Bit MCUs |
| PSD4135G1V-90JI | Flash In-System-Programmable Peripherals for 16-Bit MCUs |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PSD4135G1V-70UI | 制造商:STMICROELECTRONICS 制造商全稱(chēng):STMicroelectronics 功能描述:Flash In-System-Programmable Peripherals for 16-Bit MCUs |
| PSD4135G1V-90B81 | 制造商:STMICROELECTRONICS 制造商全稱(chēng):STMicroelectronics 功能描述:Flash In-System-Programmable Peripherals for 16-Bit MCUs |
| PSD4135G1V-90B81I | 制造商:STMICROELECTRONICS 制造商全稱(chēng):STMicroelectronics 功能描述:Flash In-System-Programmable Peripherals for 16-Bit MCUs |
| PSD4135G1V-90J | 制造商:STMICROELECTRONICS 制造商全稱(chēng):STMicroelectronics 功能描述:Flash In-System-Programmable Peripherals for 16-Bit MCUs |
| PSD4135G1V-90JI | 制造商:STMICROELECTRONICS 制造商全稱(chēng):STMicroelectronics 功能描述:Flash In-System-Programmable Peripherals for 16-Bit MCUs |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。