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参数资料
| 型号： | PSD913F1V-12J |
| 厂商： | 意法半导体 |
| 英文描述： | Flash In-System Programmable ISP Peripherals For 8-bit MCUs |
| 中文描述： | Flash在系统可编程ISP的外设的8位微控制器 |
| 文件页数： | 19/94页 |
| 文件大小： | 476K |
| 代理商： | PSD913F1V-12J |
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PSD9XX Family
Preliminary Information
22
Figure 3. Data Polling Flow Chart
START
READ DQ5 & DQ7
at Valid Address
FAIL
Program/Erase
Operation Not
Complete, Issue
Reset Instruction
PASS
Program/Erase
Operation is
Complete
YES
NO
DQ7
=
DATA7
DQ5
=1
DQ7
=
DATA
READ DQ7
The
PSD9XX
Functional
Blocks
(cont.)
9.1.1.6.2 Data Toggle
Checking the Data Toggle bit on DQ6 is a method of determining whether a Program or
Erase instruction is in progress or has completed. Figure 4 shows the Data Toggle
algorithm.
When the MCU issues a programming instruction, the embedded algorithm within the
PSD9XX begins. The MCU then reads the location of the byte to be programmed in
Flash to check status. Data bit DQ6 of this location will toggle each time the MCU reads
this location until the embedded algorithm is complete. The MCU continues to read this
location, checking DQ6 and monitoring the Error bit on DQ5. When DQ6 stops toggling
(two consecutive reads yield the same value), and the Error bit on DQ5 remains ‘0’, then
the embedded algorithm is complete. If the Error bit on DQ5 is ‘1’, the MCU should test
DQ6 again, since DQ6 may have changed simultaneously with DQ5 (see Figure 4).
The Error bit at DQ5 will be set if either an internal timeout occurred while the embedded
algorithm attempted to program the byte, or if the MCU attempted to program a ‘1’ to a bit
that was not erased (not erased is logic ‘0’).
相关PDF资料 |
PDF描述 |
|---|---|
| PSD913F1V-12JI | Flash In-System Programmable ISP Peripherals For 8-bit MCUs |
| PSD913F1V-12M | Flash In-System Programmable ISP Peripherals For 8-bit MCUs |
| PSD933212JIT | Flash In-System Programmable ISP Peripherals For 8-bit MCUs |
| PSD933212JT | Flash In-System Programmable ISP Peripherals For 8-bit MCUs |
| PSD933212MT | Flash In-System Programmable ISP Peripherals For 8-bit MCUs |
相关代理商/技术参数 |
参数描述 |
|---|---|
| PSD913F1V-12JI | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:Flash In-System Programmable ISP Peripherals For 8-bit MCUs |
| PSD913F1V-12M | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:Flash In-System Programmable ISP Peripherals For 8-bit MCUs |
| PSD913F1V-12MI | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:Flash In-System Programmable ISP Peripherals For 8-bit MCUs |
| PSD913F1V-12U | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:Flash In-System Programmable ISP Peripherals For 8-bit MCUs |
| PSD913F1V-12UI | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:Flash In-System Programmable ISP Peripherals For 8-bit MCUs |
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