psb21391 Infineon Technologies Corporation, psb21391 Datasheet - Page 50

• Manufacturer Part Number: psb21391
• Description: Siemens Codec With Upn Transceiver
• Manufacturer: Infineon Technologies Corporation

Data Sheet
Figure 22 shows the timing of shifting data from TSa to TSb on DU(DD). In figure 22a)
shifting is done in one frame because TSa and TSb didn’t succeed direct one another
(a,b = 0...9 and b
frame. This is the case when the time slots succeed one other (b = a+1) or b is smaller
than a (b < a).
Figure 22
Data Access when Shifting TSa to TSb on DU (DD)
a) Shifting TSa
b) Shifting TSa
(a,b: 0...11 and (b = a+1 or b <a)
CDAxy
CDAxy
*) if access by the µC is required
(a,b: 0...11 and b
(DD)
(DD)
FSC
FSC
DU
DU
TSb within one frame
TSb in the next frame
a+2)
a+2) In figure 22b) shifting is done from one frame to the following
TSa
TSa
TSb
µC
*)
µC
40
*)
TSb
ACK
TSa
TSa
TSb
PSB 21391
PSB 21393
Interfaces
2001-03-07