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參數(shù)資料
| 型號： | ST7FLCD1G9M1 |
| 廠商： | STMICROELECTRONICS |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 8-BIT, FLASH, 24 MHz, MICROCONTROLLER, PDSO28 |
| 封裝： | ROHS COMPLIANT, SO-28 |
| 文件頁數(shù)： | 22/96頁 |
| 文件大小： | 846K |
| 代理商： | ST7FLCD1G9M1 |
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ST7FLCD1
Flash Program Memory
5.5
In-Circuit Programming (ICP)
To perform In-Circuit Programming (ICP), the microcontroller must be switched to ICC (In-Circuit
Communication) mode by an external controller or programming tool.
Depending on the ICP code downloaded in RAM, Flash memory programming can be fully
customized (number of bytes to program, program locations or selection of serial communication
interface for downloading).
When using a STMicroelectronics or third-party programming tool that supports ICP and the
specific microcontroller device, the user only needs to implement the ICP hardware interface on the
application board (see Figure 12). For more details on the pin locations, refer to the device pin
description.
ICP needs between 4 and 6 pins to be connected to the programming tool. Depending on the
desired type of programming, these pins are:
● RESET: device reset
● VSS: device power supply ground
● ICC_CLK: ICC output serial clock pin
● ICC_DATA: ICC input serial data pin
● VPP: programming voltage
● VDD: application board power supply
CAUTION:
1. If the ICC_CLK or ICC_DATA pins are only used as outputs in the application, no signal
isolation is necessary. As soon as the programming tool is plugged to the board, even if an ICC
session is not in progress, the ICC_CLK and ICC_DATA pins are not available for the
application. If they are used as inputs by the application, an isolation such as a serial resistor
has to be implemented in case another device forces the signal. Refer to the Programming
Tool documentation for recommended resistor values.
2. During the ICC session, the programming tool must control the RESET pin. This can lead to
conflicts between the programming tool and the application reset circuit if it drives more than
5 mA at high level (push-pull output or pull-up resistor (< 1 k
)). A Schottky diode can be used
to isolate the application RESET circuit in this case. When using a classical RC network with a
resistor (> 1 k
) or a reset management IC with open-drain output and pull-up resistor
Figure 11: Memory Map and Sector Address
Sector 1
Sector 0
Sector 2
60 KBytes
DV Flash
FFFFh
EFFFh
DFFFh
1000h
Memory Size
52 KBytes
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