psb21381 Infineon Technologies Corporation, psb21381 Datasheet - Page 125
psb21381
Manufacturer Part Number
psb21381
Description
Siemens Codec With S/t Transceiver
Manufacturer
Infineon Technologies Corporation
Datasheet
1.PSB21381.pdf
(270 pages)
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3.7
The following test and diagnostic functions for the D-channel are available:
– Digital loop via TLP (Test Loop, TMH register) command bit (figure 69): The TX path
– Test of layer-2 functions while disabling all layer-1 functions and pins associated with
Figure 69
Layer 2 Test Loops
Data Sheet
of layer 2 is internally connected with the RX path of layer 2. The output from layer 1
on DD is ignored. This is used for testing layer 2 functionality excluding layer 1 (loop
back between XFIFO and RFIFO).
them (including clocking) via bit TR_CONF0.DIS_TR. The HDLC controller and codec
part can still operate via IOM-2. DCL and FSC pins become input.
Test Functions
115
HDLC Controller
PSB 21381/2
PSB 21383/4
2001-03-12
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