FSMC on STM32F103ZG vs FMC on STM32H755ZI

[mdfsl]

Good Day and Hello Everyone. 

In my upcoming project, my task is to upgrade the currently used MCU from STM32F103ZG to STM32H755ZI. 
My question are;

1- Can I replace all the FSMC I/O pins that I'm currently using on STM32F103ZG with the FMC I/O pins on STM32H755ZI?

2- If not, are there any other option for me to find a replacement for FMSC I/O pin that I'm currently used on STM32F103ZG to other pins on STM32H755ZI?

3- Can I replace all the FSMC_NOE, FSMC_NWE and FMSC_NWAIT pins that I'm currently using on STM32F103ZG with the FMC_NOE, FMC_NWE and FMC_NWAIT I/O pins on STM32H755ZI?

Thank you in advance for all your advice, opinion and tips. Any answer are highly appreciated. 

[SofLit]

Hello @mdfsl and welcome to the community.

What do you mean by " Can I replace all the FSMC I/O pins that I'm currently using on STM32F103X6 with the FMC I/O pins on STM32H755ZG?" 

You need to give more details on your case and what do you plan to do..

[STTwo-32]

Hello @mdfsl 

STM32H755ZG Does not exist. Could you please correct this.

Best Regards.

STTwo-32

[mdfsl]

Hello @STTwo-32 very sorry for the mistake. The actual part number is STM32H755ZI 

[mdfsl]

Hi @SofLit , thanks for your reply. 

On our current product, we are using   FSMC_A[4:1], FSMC_D[15:0], FSMC_NOE, FSMC_NWE and FMSC_NWAIT I/Os (total of 23 pins) on STM32F103ZG to communicate with an external Motor Controller IC. On our next project, due to a new technical requirement, we will need to change from using  STM32F103ZG to STM32H755ZI. The STM32H755ZI MCU does not have any FSMC I/Os but it does have FMC I/O and  I've checked the datasheet for both MCU and it seems that they are huge similarities between FSMC and FMC I/Os. 

I've asked the Firmware team regarding this matter and according to them, if the I/O structure and architecture for both MCU are the same, I can use the FMC I/Os  on STM32H755ZI to replace the FSMC I/Os  on STM32F103ZG with minor changes on the Firmware. 

Therefore, I would like to get a confirmation from STM technical teams or any other experts that is familiar with these MCUs about using the FMC I/Os on STM32H755ZI to replace the FSMC I/Os  on STM32F103ZG.