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Number of PCB masks

 
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enileshk
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Joined: 05 Feb 2006
Posts: 7
Location: India

PostPosted: Sat Jul 17, 2010 7:08 pm    Post subject: Number of PCB masks
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I have been asked in an interview:

Question: There are 10 PCB defined in PSB, But my program is using only second and seventh PCB. So how many PCB masks I need in Program?

My Answer: 10 PCB masks are required.

I am much sure about my answer but please help me confirm my understanding.
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gs_sekhar

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Joined: 06 Oct 2009
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Location: Chennai

PostPosted: Fri Jul 23, 2010 12:32 pm    Post subject: Reply to: Number of PCB masks
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If you are giving all the 10 PCB pointers in the program, then you suppose to give all the PCB masks. If you want to use only 2nd and 7th then give remaining as dummy PCB poninters and 2 PCBMASKs are enough.
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mkarthikeyan

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Joined: 07 Aug 2008
Posts: 34
Location: Bangalore

PostPosted: Wed Jul 28, 2010 1:16 am    Post subject: Reply to: Number of PCB masks
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enileshk,
You are right. We need 10 PCB Mask in Linkage and it needs to be established properly in procedure division or ENTRY DLITCBL.
Since the program is not going to use other PCB, we don't need to elaborate the PCB Mask.

ie 01 Unused-PCB01 PIC X(50) - First PCB
01 SECOND-PCB.
05 DDBNAME....
05 SEG-LEVEL
...
05 KFA
01 Unused-PCB02 PIC X(40) - third..
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enileshk
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Joined: 05 Feb 2006
Posts: 7
Location: India

PostPosted: Wed Jul 28, 2010 11:53 am    Post subject: Re: Reply to: Number of PCB masks
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Thanks for confirming my understanding, It really helps.

mkarthikeyan wrote:
enileshk,
You are right. We need 10 PCB Mask in Linkage and it needs to be established properly in procedure division or ENTRY DLITCBL.
Since the program is not going to use other PCB, we don't need to elaborate the PCB Mask.

ie 01 Unused-PCB01 PIC X(50) - First PCB
01 SECOND-PCB.
05 DDBNAME....
05 SEG-LEVEL
...
05 KFA
01 Unused-PCB02 PIC X(40) - third..
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