Xgate versus HCS12

Started by same...@... March 17, 2006
Does anyone have info about the advantages for Xgate versus HCS12? What is the
core difference between HCS12 and HC12 series
	Warm Regards,
Sameer Deshmukh
Solutions Developer-Embedded Systems
TATA Technologies Ltd. Pune.
+91 20 5613 3228

A Winning team beats with ONE HEART.
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Xgate's are not usefull for multi tasking. Q not
clear.

                                    Mahesh Suddhala

--- sameer.deshmukh@same... wrote:

> 
> Does anyone have info about the advantages for Xgate
> versus HCS12? What is the core difference between
> HCS12 and HC12 series
> 
> 
> 
> Warm Regards,
> Sameer Deshmukh
> Solutions Developer-Embedded Systems
> TATA Technologies Ltd. Pune.
> +91 20 5613 3228
> 
> A Winning team beats with ONE HEART.
> 
> 
> 
>
****************************************************************************************************
> Email Disclaimer:
> Information contained and transmitted by this e-mail
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I meant in my prevoius mail, If any one had the comparison sheet for Xgate
and HCS12 series microcontroller. What tools does one have to procure ?(I am
currently using CW3p1 for HCS12)
	Warm Regards,
Sameer Deshmukh
Solutions Developer-Embedded Systems
TATA Technologies Ltd. Pune.
+91 20 5613 3228

A Winning team beats with ONE HEART.
	-----Original Message-----
From: 68HC12@68HC... [mailto:68HC12@68HC...]On Behalf Of
mahesh suddhala
Sent: Friday, March 17, 2006 11:07 AM
To: 68HC12@68HC...
Subject: Re: [68HC12] Xgate versus HCS12
	Xgate's are not usefull for multi tasking. Q not
clear.

                                    Mahesh Suddhala

--- sameer.deshmukh@same... wrote:

> 
> Does anyone have info about the advantages for Xgate
> versus HCS12? What is the core difference between
> HCS12 and HC12 series
> 
> 
> 
> Warm Regards,
> Sameer Deshmukh
> Solutions Developer-Embedded Systems
> TATA Technologies Ltd. Pune.
> +91 20 5613 3228
> 
> A Winning team beats with ONE HEART.
> 
> 
> 
>
****************************************************************************************************
> Email Disclaimer:
> Information contained and transmitted by this e-mail
> is confidential,proprietary, and legally privileged
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> prohibited.You are requested to delete this e-mail
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> reflect the view of Tata Technologies.While this
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> addressee should also scan for viruses.Internet
> communications cannot be guaranteed to be timely,
> secure, error or virus-free as information could be
> intercepted, corrupted, lost, destroyed, arrive late
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  What is the core difference between
 HCS12 and HC12 series????
 
hi Sameer Deshmukh
	  Here is an overview of the HCS12 CPU architecture. The HCS12 CPU is
  identical to the MC68HC12 and is referred to in most documents as CPU12.
  Another factor to consider is that CPU12 is upward compatible with the
  MC68HC11 CPU.  respectively in this module.
  Like the HC12, the HCS12 CPU maps all registers and peripherals into a
  single linear address space, providing efficient memory access. Since the
  HCS12 family supports up to 1 mega byte of address space, a paging
  scheme has been implemented to access as many as 64-16K page
  windows. This provides system designers with the memory needed to satisfy
  many applications.
  The HCS12 CPU instruction set extends the HC11 instructions for data
  movement, data manipulation, enhanced arithmetical operation, and
  branching and control logic. In addition, the HCS12 model adds several new
  addressing modes for a total of sixteen addressing modes. Although most of
  the HCS12 family members have on-chip Flash and RAM, which are ideal
  for single chip solutions for many applications, the system designer can
  configure the device to access additional memories externally.
   The HCS12 has an identical programmers model to M68HC11/M68HC12
   No new registers
   No changes in interrupt stacking order
   Muxed and non-muxed external interfaces
   The HCS12 can reuse existing software source code.
  - Note: timing loops change due to new clock frequency, Byte counts and
  instruction cycle times.
   The HCS12 has improved performance when using new instructions.
   The HCS12 reduces interrupt latency.
   The HCS12 increases math speed.
   The HCS12 increases performance.
   Instruction queue data increases performance
   Instructions execute faster while remaining deterministic
   
   Added instructions designed with compilers in mind:
   The new instructions and addressing modes support high level languages.
   MC68HC12 and HCS12 have an identical instruction set.
  Stack pointer and program counter offset indexed addressing
  11 math instructions
  Fuzzy logic instructions
  Long branch instruction (16 bit offset)
  Move instruction (memory to memory)
  Min / max functions
  Bit manipulations for entire memory map
  Exchange / transfer
  Table look-up and interpolate function
  Looping construct
  The CPU12 is a high-speed, 16-bit processing unit. It has full 16-bit data
  paths and internal registers for high-speed extended math instructions. The
  instruction set is a proper superset of the M68HC11 instruction set. The
  CPU12 allows instructions with odd byte counts, including many single-byte
  instructions. This provides efficient use of ROM space. An instruction pipe
  buffers program information so the CPU always has immediate access to at
  least three bytes of machine code at the start of every instruction. The
  CPU12 also offers an extensive set of indexed addressing capabilities. The
  HCS12 includes new instructions and addressing modes to support high
  level languages.
  There are a number of features included in the HCS12 CPU for efficiently
  implementing code that is written in a high-level language. CPU12 has a full
  set of 8 and 16-bit mathematical instructions such as 16x16 signed and
  unsigned multiplies and divides. CPU12 also includes a set of efficient fuzzy
  logic instructions, and table lookup and interpolate. It also includes many
  instruction that support looping construct.
  Sindhoor.Hegde
	mahesh suddhala <suddhala@sudd...> wrote:  Xgate's are not usefull for
multi tasking. Q not
clear.

                                    Mahesh Suddhala

--- sameer.deshmukh@same... wrote:

> 
> Does anyone have info about the advantages for Xgate
> versus HCS12? What is the core difference between
> HCS12 and HC12 series
> 
> 
> 
> Warm Regards,
> Sameer Deshmukh
> Solutions Developer-Embedded Systems
> TATA Technologies Ltd. Pune.
> +91 20 5613 3228
> 
> A Winning team beats with ONE HEART.
> 
> 
> 
>
****************************************************************************************************
> Email Disclaimer:
> Information contained and transmitted by this e-mail
> is confidential,proprietary, and legally privileged
> data of Tata Technologies that is intended for use
> only by the addressee.If you are not the intended
> recipient, you are notified that any dissemination,
> distribution, or copying of this e-mail is strictly
> prohibited.You are requested to delete this e-mail
> immediately and notify the originator.Any views
> expressed by an individual do not necessarily
> reflect the view of Tata Technologies.While this
> e-mail has been checked for all known viruses, the
> addressee should also scan for viruses.Internet
> communications cannot be guaranteed to be timely,
> secure, error or virus-free as information could be
> intercepted, corrupted, lost, destroyed, arrive late
> or incomplete.Tata Technologies does not accept
> liability for any errors or omissions.To know more
> about Tata Technologiesplease visit
> http://www.tatatechnologies.com
>
***************************************************************************************************
> 
> 
> 
> [Non-text portions of this message have been
> removed]
> 
>
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The HCS12 and HCSX do provide pin compatable devices. However, my HCS12 
Cosmic/Multilink  tool chain does not regcognize the HCSX version. Now the 
sob story for me was that I was attaracted to the HCSX12 offer of more 
serial ports, this means a complete compiler/programmer procurement just to 
support 2 more serial ports using the HCSX with my existing design - how 
obsurd, it was misleadingly advertized as a plug and go, NOT !! I need to 
now pay thousands of dollars for XGATE functionality and to make the Zap 
debugger working for HCSX (excluding XGATE), that I dont really need. Cosmic 
could have offered a simple upgrade (excluding XGATE) a kind of incremental 
upgrade - but do they?

My Cosmic/Zap/Multilink tool chain only supports up to HCSDP512. I need the 
additional serial ports provided by the HCSX pin compatable devices.

Can anybody perhaps coment on the Cosmic HCS compiler implementation on a 
HCSX device - is it possible if not using XGATE? And how did the HCS Zap 
debugger handle the HCSX device?
	----- Original Message ----- 
From: <sameer.deshmukh@same...>
To: <68HC12@68HC...>
Sent: Friday, March 17, 2006 12:17 AM
Subject: RE: [68HC12] Xgate versus HCS12
	>I meant in my prevoius mail, If any one had the comparison sheet for Xgate 
>and HCS12 series microcontroller. What tools does
one have to procure ?(I 
>am currently using CW3p1 for HCS12)
>
>
>
>
> Warm Regards,
> Sameer Deshmukh
> Solutions Developer-Embedded Systems
> TATA Technologies Ltd. Pune.
> +91 20 5613 3228
>
> A Winning team beats with ONE HEART.
>
>
>
> -----Original Message-----
> From: 68HC12@68HC... [mailto:68HC12@68HC...]On Behalf Of
> mahesh suddhala
> Sent: Friday, March 17, 2006 11:07 AM
> To: 68HC12@68HC...
> Subject: Re: [68HC12] Xgate versus HCS12
>
>
> Xgate's are not usefull for multi tasking. Q not
> clear.
>
>                                    Mahesh Suddhala
>
> --- sameer.deshmukh@same... wrote:
>
>>
>> Does anyone have info about the advantages for Xgate
>> versus HCS12? What is the core difference between
>> HCS12 and HC12 series
>>
>>
>>
>> Warm Regards,
>> Sameer Deshmukh
>> Solutions Developer-Embedded Systems
>> TATA Technologies Ltd. Pune.
>> +91 20 5613 3228
>>
>> A Winning team beats with ONE HEART.
>>
>>
>>
>>
>
****************************************************************************************************
>> Email Disclaimer:
>> Information contained and transmitted by this e-mail
>> is confidential,proprietary, and legally privileged
>> data of Tata Technologies that is intended for use
>> only by the addressee.If you are not the intended
>> recipient, you are notified that any dissemination,
>> distribution, or copying of this e-mail is strictly
>> prohibited.You are requested to delete this e-mail
>> immediately and notify the originator.Any views
>> expressed by an individual do not necessarily
>> reflect the view of Tata Technologies.While this
>> e-mail has been checked for all known viruses, the
>> addressee should also scan for viruses.Internet
>> communications cannot be guaranteed to be timely,
>> secure, error or virus-free as information could be
>> intercepted, corrupted, lost, destroyed, arrive late
>> or incomplete.Tata Technologies does not accept
>> liability for any errors or omissions.To know more
>> about Tata Technologiesplease visit
>> http://www.tatatechnologies.com
>>
>
***************************************************************************************************
>>
>>
>>
>> [Non-text portions of this message have been
>> removed]
>>
>>
>
>
> __________________________________________________
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