Does ATTiny24V have BODS, BODSE?

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John_A_Brown
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Posted by John_A_Brown: Sat. Jan 12, 2013 - 05:23 PM
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The generic ATTiny24/44/84 datasheet has details of the BODS and BODSE bits in the MCUCR register, and says that:

Quote:
This bit is unused in devices where software BOD disable has not been implemented and will
read as zero in those devices.

but I don't seem to be able to find any info on which devices do have this function.
I would assume that my ATTiny24V does, as the V series was aimed at lower power, IIRC.
Anyone have a more definitive answer?
The AS6 defs for ATTiny24A don't have the BODS or BODSE bit defined, and AS6 doesn't seem to be aware of the V part.

John

Four legs good, two legs bad, three legs stable.

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AVR Microcontrollers, megaAVR and tinyAVR
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Bronze Markjs
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Posted by js: Sat. Jan 12, 2013 - 10:27 PM
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Quote:
The generic ATTiny24/44/84 datasheet has details of the BODS and BODSE bits in the MCUCR register
Not in the datasheet I have (09/06) and neither in the assembler .inc files for both the ATTiny24 and ATTiny24A.

John Samperi

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www.ampertronics.com.au

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Bronze Marktheusch
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Posted by theusch: Sun. Jan 13, 2013 - 03:05 PM
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Quote:

Quote:
The generic ATTiny24/44/84 datasheet has details of the BODS and BODSE bits in the MCUCR register
Not in the datasheet I have (09/06)

Indeed--for clarification perhaps give the rev letter of that datasheet, or a link to Atmel's site?

My take on this would be that BODS/BODSE are picopower features, and the V ain't picopower. (AFAIK) there were no "P" versions of that model but the "A" rev. is picopower.

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John_A_Brown
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Posted by John_A_Brown: Sun. Jan 13, 2013 - 04:49 PM
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Looking at the 12/08 datasheet. Probably out of date...

I notice that if I change the device(in AS6)to ATTiny24(without the A suffix) the BODS and BODSE bits are defined.

OK, this is from page 35 of the 10/10 datasheet - doc8006.pdf:

Quote:
7.2.1 Limitations
BOD disable functionality has been implemented in the following devices, only:
• ATtiny24, revision E, and newer
• ATtiny44, revision D, and newer
• ATtiny84, revision B, and newer
Revisions are marked on the device package and can be located as follows:
• Bottom side of packages 14P3 and 14S1
• Top side of package 20M1

My bad, old datasheet.

Four legs good, two legs bad, three legs stable.

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