psb21391 Infineon Technologies Corporation, psb21391 Datasheet - Page 44

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

Data Sheet
.
Figure 16
Data Access via CDAx0 and CDAx1 register pairs
2.2.2.1.1 Looping and Shifting Data
Figure 17 gives examples for typical configurations with the above explained control and
configuration possibilities with the bits TSS, DPS, EN and SWAP in the registers
TSDPxy or CDAx_CR:
a) looping IOM-2 time slot data from DU to DD or vice versa (SWAP = ’0’)
b) shifting data from TSa to TSb on DU and DD (SWAP = ’1’)
c) switching data from TSa (DU) to TSb(DD) and TSb (DU) to TSa (DD)
x = 1 or 2; a,b = 0...11
(EN_O0)
1
output
CDAx0
Enable
1
TSa
0
TSa
(EN_I0)
input
0
1
1
1
CDA_CRx
Register
Control
34
(SWAP)
Input
Swap
1
(EN_I1)
1
input
1
CDAx1
TSb
0
TSb
Enable
0
1
(EN_O1)
output
1
PSB 21391
PSB 21393
Interfaces
2001-03-07
IOM_HAND.FM4
DD
DU