psb21391 Infineon Technologies Corporation, psb21391 Datasheet - Page 90

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

Data Sheet
2.3.5.2.2 Activation initiated by the Line Termination LT
INFO 0 has to be transmitted as long as no valid INFO (INFO 2 or INFO 4) is received.
After reception of INFO 2 or INFO 4 transmission of INFO 1 or INFO 3 respectively has
to be started.
Figure 46
Example of Activation/Deactivation initiated by the Line termination (LT).
Activation/Deactivation completely under software control
µC Interface
RINF=’01’
RINF=’10’
XINF=’010’
RINF=’11’
XINF=’011’
RINF=’00’
XINF=’000’
T1
T2
T3
TE
TE
TE
: 4 to 12 U
:
:
4 U
4 U
PN
PN
PN
TE
frames
frames
frames
T1
T2
T3
TE
TE
TE
80
U
PN
INFO 0
INFO 2
INFO 1
INFO 4
INFO 3
INFO 0
INFO 0
INFO 0
Interface
act_deac_lt_ext_upn.vsd
LT
PSB 21391
PSB 21393
Interfaces
2001-03-07