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MCF52235, MCF52234:CAU

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MCF52235, MCF52234:CAU

‎09-03-2008 05:12 AM
1,881 Views
BIS
Contributor I
Do you know how to determine whether CAU unit is present in MCF52235 family device: in softwareI have to make choice between MCF52234( doesn't have CAU unit, sha1 algorithm is performed in software) and MCF52235 ( CAU is present, sha1 is calculated by meens of hardware unit )? Thank you for help.
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‎09-03-2008 05:25 AM
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admin
Specialist II
In my opinion, Chip Identification Register is perfect for this job. See manual.
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‎09-03-2008 06:11 AM
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BIS
Contributor I
Thank you for help. I tried to read out processor hardware configuration loaded after reset into D0 and D1 register, but it has the same value.
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‎09-03-2008 06:54 AM
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admin
Specialist II
The regisiter I was referring to is part of Chip Configuration Module (CCM) and its address is IPSBAR+0x11000A. Again, see manual.
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‎09-03-2008 08:22 AM
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BIS
Contributor I
Yes, it works. Thank you for help. I tried to say that hw configuration information from D0,D1 after reset is the same for 52234 and 52235. And the manual approves that. The CAU present bit is always zero.
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