PSF21150FV14XP Infineon Technologies, PSF21150FV14XP Datasheet - Page 102
PSF21150FV14XP
Manufacturer Part Number
PSF21150FV14XP
Description
Manufacturer
Infineon Technologies
Datasheet
1.PSF21150FV14XP.pdf
(270 pages)
Specifications of PSF21150FV14XP
Number Of Line Interfaces
1
Control Interface
HDLC
Lead Free Status / Rohs Status
Compliant
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IPAC-X
PSB/PSF 21150
Description of Functional Blocks
Figure 54
shows the timing of looping TSa from DU to DD (a = 0...11) via CDAxy
register. TSa is read in the CDAxy register from DU and is written one frame later on DD.
.
a = 0...11
FSC
DU
TSa
TSa
CDAxy
*)
µC
DD
TSa
TSa
*) if access by the µC is required
Figure 54
Data Access when Looping TSa from DU to DD
Figure 55
shows the timing of shifting data from TSa to TSb on DU(DD). In
Figure 55a)
shifting is done in one frame because TSa and TSb didn’t succeed direct one another
(a,b = 0...9 and b ³ a+2 . In
Figure 55b)
shifting is done from one frame to the following
frame. This is the case when the time slots succeed one other (b = a+1) or b is smaller
than a (b < a).
At looping and shifting the data can be accessed by the controller between the
synchronous transfer interrupt (STI) and the status overflow interrupt (STOV). STI and
STOV are explained in the section ’Synchronous Transfer’. If there is no controller
intervention the looping and shifting is done autonomous.
Data Sheet
102
2003-01-30
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