Messages in this thread | | | Date | Wed, 27 Oct 1999 09:01:46 +0200 (MEST) | From | kees <> | Subject | serial.c (modem-fcr) |
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Hello All,
While I'm reading the datasheet for the (EXAR) ST16550, this is an uart with fifo's, I'm beginning to believe that the serial driver should maintain a copy of this write-only register. I understand (from this info) that when bits that are programmed i.e. FIFO RX or TX trigger level the others must be re-written or they will be lost(reset).
Is it possible that it works that way?
It is my feeling that is allways a good thing to keep a copy of a write-only hardware register.
Regards
Kees
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