[bluetooth] querries on BTH

["priya chandrasekharan" <priyanpc@rediffmail.com>]

How the "offset" is getting added to CLKN in order to get CLKE & CLK 
during Paging & Connection respectively?   
What is the Circuitry used?
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What does the Slave listen for (DIAC or GIAC) from the master during Inquiry for the    purpose of correlation?
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How the value of 'Y2' decided while giving it as an input to the "Selection Kernel" for    Frequency Hopping?
The value Y2 is exactly given as CLK1*32.
Should 32 be converted to equivalent Binary for multiplication?
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During Paging an X-input is fed into the    Selection Kernel.
Here Xp=[CLKE16-12 + Koffset + (CLKE4-2,0-CLKE16-12)mod16]mod32        
How exactly the function (CLKE4-2,0-CLKE16-12)mod16 be implemented    and also detail on the exact use of the above mentioned function.
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Is there 32 different frequencies within 1.28 secs interval (Train A)?
Where does the Train B (next 1.28 secs) get the 16 other different frequencies?
It is told in the Spec. that the 16 frequencies of Train B are from 32 possible frequencies in the 1.28 sec interval (where Train A is sent) 
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Explain RAND.
Scenario 1
It is said to be between 0 & 63 in Inquiry Scan & the Inquiring device is said to count the no. of Inquiry messages for RAND counts. Explain on this.
Scenario 2
It is also said to be between 0 & 1023 again in Inquiry Scan. After receiving the Inquiry message from the Master, the slave generates a RAND number and returns to connection or Standby for RAND time slots. Then it checks for another Inquiry message. Only after receiving this Inquiry message, it responds with an FHS.
These two scenarios are contradictory. Explain.
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Why does the Access Code Correlator use a Threshold for accepting the packet.
On what basis th
s fixed at 51?
How the preamble helps in DC thresholding & Clock recovery?
How is the 1010/0101 value derived for the preamble and trailer?
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OFFSET CALCULATION
CLK27-1 mod TSNIFF = DSNIFF 	for initialization  type 1 
Used when CLK27 of Master is ‘0’
(CLK27 ,CLK26-1) mod TSNIFF = DSNIFF 	for initialization type 2 
Used when CLK27 of Master is ‘1’
Clock value for next M-S sniff slot found by adding TSNIFF to the clock value of the current M-S sniff slot
CLK (k+1) = CLK (k) + TSNIFF
Elaborate on this concept.
How exactly is the mod value got?
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