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FSMC静态存储器控制器

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For the LQFP100 and BGA100 packages, only FSMC Bank1 and Bank2 are available. Bank1 can only

support a multiplexed NOR/PSRAM memory using the NE1 Chip Select. Bank2 can only support a 16- or

8-bit NAND Flash memory using the NCE2 Chip Select. The interrupt line cannot be used since Port G is

not available in this package.

对于LQFP100和BGA100封装,只有FSMC BANK1和Bank2。 BANK1只能

支持复用的NOR/ PSRAM内存使用NE1芯片选择。 BANK2只能支持16 -

8位NAND闪存使用的NCE2芯片的选择。中断线不能使用,因为端口G

不提供这种封装。

FSMC

The FSMC is embedded in the STM32F103xC, STM32F103xD and STM32F103xE

performance line family. It has four Chip Select outputs supporting the following modes: PC

Card/Compact Flash, SRAM, PSRAM, NOR and NAND.

STM32F103xC,STM32F103xD和STM32F103xE中嵌入了FSMC

型系列。它有4个片选输出,支持以下模式:PC

卡/紧凑型闪存,SRAM,PSRAM,NOR和NAND。

Functionality overview:

● The three FSMC interrupt lines are ORed in order to be connected to the NVIC

● Write FIFO

● Code execution from external memory except for NAND Flash and PC Card

● The targeted frequency, fCLK, is HCLK/2, so external access is at 36 MHz when HCLK

is at 72 MHz and external access is at 24 MHz when HCLK is at 48 MHz

功能概述:

●三个FSMC中断线路或连接,以向NVIC

●写FIFO

●代码从外部存储器执行除NAND闪存和PC卡

●目标频率FCLK,HCLK/2,所以外部访问时,在36 MHz HCLK

在72 MHz和外部访问时,在24 MHz HCLK是在48 MHz

 

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