13 Jul
2013
13 Jul
'13
7:31 p.m.
On 07/12/2013 07:45 PM, Steve Glass wrote:
Hi Matt,
Hey,
so where the Daniels manual uses the term 'serializing' (for the bits
that make up the LCW) this simply refers to the process of turning the
72 bits into 6 hex bits? And this is done in the same way for the
data information in the HDU even though it is not explicitly called
serializing in the HDU section of the manual?
Thanks!
I am trying to get a handle on the data in the Link Control Word.
The LCW is 72 bits right? On transmission the 72 bit LCW is
serialized into 12 hex bits. And then it is encoded with a
(24,12,13) RS code to yield 24 hex bits. The 24 hex bits are then
encoded with a (10,6,3) shortened Hamming code to yield 240 bits
total.
Is it known how the bits are serialized? Or better yet is there
an existing function for unserializing/serializing that will work
here?
The Common Air Interface specification defines the bit
interleaving. We typically use a static const array identifying the
indices of the bits that make up a given logical field.