Where to find more details about S12XS/S12XF/S12XE Families?

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Where to find more details about S12XS/S12XF/S12XE Families?

2,559 Views
ubuntu
Contributor I
Hi every one,
I am currently researching on the freescale 16-bit microcontrollers like: S12XS/S12XF/S12XE Families. I have been browsing on freescale.com but have not found some information resources I need to these questions below:

Smallest order execute time (ns)
If they have On Chip Debug (JTAG)
Power On Clear
On-Board Flash Program
How many ports/pins that support external Interrupts
Number of Assembly instructions
If it has hardware multiplier/divider
The A/D Converter Sample and Hold Frequencies
How many Low Power Support Modes

I’ll be very thankful if anyone could give me any pointers where I could find the answers to my questions above.
Best,
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6 Replies

711 Views
ubuntu
Contributor I
Hi Alban,

Thanks for your pointer.

I have browsed the link you gave, and as before, several separated documents. Do you know if there is any single document/file which contains all information about these:

Smallest order execute time (ns)
If they have On Chip Debug (JTAG)
Power On Clear
On-Board Flash Program
How many ports/pins that support external Interrupts
Number of Assembly instructions
If it has hardware multiplier/divider
The A/D Converter Sample and Hold Frequencies
How many Low Power Support Modes

I have already tried and spent a lot of time on looking in most documents (via the link you gave) but still I could not really find the information I need.
Hope someone can help out!
Cheers,
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711 Views
ubuntu
Contributor I
Hi Alban,
Thanks again for your prompt response.

Again I followed your last suggestions to search for information I need. But unfortunately did not manage to find all info. If you (or anyone else) could kindly help me to provide the answers to my questions below, It'll be highly appreciated.

Questions about S08D Family and S12XS Family
Do these families have:

- Frequency Divider Circuit
- a Push-Pull circuit built in
- What is the A/D Converter Sample and Hold Frequency
- What is the Comparator Response Time?
- What are the Realtime clock Sources?
- How many Watch Dog Timers they have
- What are the Watch Dog Timer Clock Sources?
- How many CAN Message Box do they have?
- Number Of The Electric Current Drive Ports (number of ports that support higher current >10 mA)
- How many pins that support external interrupts
- Do they have a ROM Data Backup Function

Thanks a lot in advance again.
Cheers,
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711 Views
Alban
Senior Contributor II
Hello,

This is not the proper board for S08D questions. 8-bit questions must be asked in the 8-bit MCU board.

I think you did not read the right book as this type of answer is in datasheet.

Your questions cannot be replied to as answers depends on package and on the exact reference of the family.
A device with 80pins will have more resources available externally than a 48pin.

As far as I know, the S12XS family does not exist yet and anything you will get is preliminary information subject to change.

Regards,
Alban.
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711 Views
Alban
Senior Contributor II
The datasheet is what you are looking for, it is in each product page
Here are a few elements:

Smallest order execute time (ns)
--> Depends on instruction to be executed. Max clock is 100MHz on some and most XGATE instructions are executed in one cycle. So take 10exp-8 second as time.

If they have On Chip Debug (JTAG)
--> Yes, but it is BDM and DBG modules, not JTAG.

Power On Clear
--> Don't know what this means.

On-Board Flash Program
--> Yes all of these

How many ports/pins that support external Interrupts
--> Depends

Number of Assembly instructions
--> look for the CPU reference manual. There are 2 cores, a CPU12X and an XGATE. instruction set is different as CPU12X is CISC whilst XGATE is RISC.

If it has hardware multiplier/divider
--> There are instructions for this, yes.

The A/D Converter Sample and Hold Frequencies
--> In the Electrical Characteristics of the datasheet (end of documents)

How many Low Power Support Modes
--> 2 reals mode. STOP and Pseudo STOP. But you can combine with a periodic interrupt and not go to the full bus speed to maximize power saving. It makes much more than 2 Low Power mode. There are special documentation for this.

Cheers,
Alban.
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Alban
Senior Contributor II
IMPORTANT: S12XS does NOT feature the XGATE core, but is single core with the CPU12X.

S12XF is for FlexRay primarily.

S12XE is the more performant for general applications in the list of three.
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711 Views
Alban
Senior Contributor II
Hello,

These are Automotive parts, they are described under 16-bit Automotive microcontrollers.

Here a direct link to these:
http://www.freescale.com/webapp/sps/site/overview.jsp?nodeId=01624686365dlqbJwn

Cheers,
Alban.
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