hello every one,
I am working with the MC912XS64 MCU right now, while reading the
refference manual, I found there are two types of Main Memory versions
are available in the MC9S12XS family.
1. Flash Memory (256K 128K or 64K)
2. ROM Memory (256K 128K or 64K)
According to the Manual, for the Controller which has ROM as the Main
memory version, doesn't contain the DataFlash (Flash EEPROM).
Can anyone tell me the difference between these Flash and ROM
versions in the MC9S12XS family.
please reffer to the page.no 666
of 'MC9S12XS_Family_Reference_Manual.pdf '
Thanks & Regards
Nandu
MC9S12XS: Difference between Flash and ROM versions of Controller
Started by ●May 18, 2008
Reply by ●May 24, 20082008-05-24
Hello,
The Flash version can be erased and re-written.
The ROM, you cannot change the content of constant and software.
Also price of ROM means they are only interesting in high volumes.
Alban.
--- In 6..., "yadunandan kasu"
wrote:
>
> hello every one,
>
> I am working with the MC912XS64 MCU right now, while reading the
> refference manual, I found there are two types of Main Memory
versions
> are available in the MC9S12XS family.
> 1. Flash Memory (256K 128K or 64K)
> 2. ROM Memory (256K 128K or 64K)
>
> According to the Manual, for the Controller which has ROM as the
Main
> memory version, doesn't contain the DataFlash (Flash EEPROM).
>
> Can anyone tell me the difference between these Flash and ROM
> versions in the MC9S12XS family.
>
> please reffer to the page.no 666
> of 'MC9S12XS_Family_Reference_Manual.pdf '
> Thanks & Regards
> Nandu
>
The Flash version can be erased and re-written.
The ROM, you cannot change the content of constant and software.
Also price of ROM means they are only interesting in high volumes.
Alban.
--- In 6..., "yadunandan kasu"
wrote:
>
> hello every one,
>
> I am working with the MC912XS64 MCU right now, while reading the
> refference manual, I found there are two types of Main Memory
versions
> are available in the MC9S12XS family.
> 1. Flash Memory (256K 128K or 64K)
> 2. ROM Memory (256K 128K or 64K)
>
> According to the Manual, for the Controller which has ROM as the
Main
> memory version, doesn't contain the DataFlash (Flash EEPROM).
>
> Can anyone tell me the difference between these Flash and ROM
> versions in the MC9S12XS family.
>
> please reffer to the page.no 666
> of 'MC9S12XS_Family_Reference_Manual.pdf '
> Thanks & Regards
> Nandu
>
Reply by ●May 28, 20082008-05-28
Hi Mr.Alabn,,
Thankyou very much. i got cleared with this, i confused with the basics.
Alban Rampon wrote:
Hello,
The Flash version can be erased and re-written.
The ROM, you cannot change the content of constant and software.
Also price of ROM means they are only interesting in high volumes.
Alban.
--- In 6..., "yadunandan kasu"
wrote:
>
> hello every one,
>
> I am working with the MC912XS64 MCU right now, while reading the
> refference manual, I found there are two types of Main Memory
versions
> are available in the MC9S12XS family.
> 1. Flash Memory (256K 128K or 64K)
> 2. ROM Memory (256K 128K or 64K)
>
> According to the Manual, for the Controller which has ROM as the
Main
> memory version, doesn't contain the DataFlash (Flash EEPROM).
>
> Can anyone tell me the difference between these Flash and ROM
> versions in the MC9S12XS family.
>
> please reffer to the page.no 666
> of 'MC9S12XS_Family_Reference_Manual.pdf '
> Thanks & Regards
> Nandu
>
regards
Yadunandan Kasu(Nandu)
---------------------------------
Bring your gang together. Do your thing. Find your favourite Yahoo! Group.
Thankyou very much. i got cleared with this, i confused with the basics.
Alban Rampon wrote:
Hello,
The Flash version can be erased and re-written.
The ROM, you cannot change the content of constant and software.
Also price of ROM means they are only interesting in high volumes.
Alban.
--- In 6..., "yadunandan kasu"
wrote:
>
> hello every one,
>
> I am working with the MC912XS64 MCU right now, while reading the
> refference manual, I found there are two types of Main Memory
versions
> are available in the MC9S12XS family.
> 1. Flash Memory (256K 128K or 64K)
> 2. ROM Memory (256K 128K or 64K)
>
> According to the Manual, for the Controller which has ROM as the
Main
> memory version, doesn't contain the DataFlash (Flash EEPROM).
>
> Can anyone tell me the difference between these Flash and ROM
> versions in the MC9S12XS family.
>
> please reffer to the page.no 666
> of 'MC9S12XS_Family_Reference_Manual.pdf '
> Thanks & Regards
> Nandu
>
regards
Yadunandan Kasu(Nandu)
---------------------------------
Bring your gang together. Do your thing. Find your favourite Yahoo! Group.
