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angy
Joined: 09 Jul 2008
Posts: 16
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 04 Oct 2008 10:27 What are read-only register......? |
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What are read-only register how are they used.
For example forLPC 2148
SSP Status Register (SSPSR - 0xE006 800C)
This read-only register reflects the current status of the SSP controller.
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penoy_balut
Joined: 08 Sep 2007
Posts: 129
Helped: 16
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| 06 Oct 2008 7:06 What are read-only register......? |
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| these are registers not accessible for writing data but for reading only like as you said status, like for example interrupts, overflow, peripherals enabled, error bits, queue, data etc.
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Fom
Joined: 10 Mar 2004
Posts: 758
Helped: 56
Location: Taiwan
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| 06 Oct 2008 7:45 What are read-only register......? |
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I think it is not a register in common sense. It is just a flag or a signal that is changed when some condition are changed.
I mean you don't consider any clock for that.
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