psb21391 Infineon Technologies Corporation, psb21391 Datasheet - Page 89

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

2.3.5.2.1 Activation initiated by the Terminal (TE, SCOUT-P(X))
INFO 1W has to be transmitted as long as INFO 0 is received.
INFO 0 has to be transmitted thereafter 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 45
Example of Activation/Deactivation initiated by the Terminal (TE).
Activation/Deactivation completely under software control
Data Sheet
µC Interface
XINF=’001’
RINF=’01’
XINF=’000’
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
79
U
PN
INFO 1W
INFO 0
INFO 2
INFO 0
INFO 1
INFO 4
INFO 3
INFO 0
INFO 0
INFO 0
Interface
act_deac_te-ext_upn.vsd
LT
PSB 21391
PSB 21393
Interfaces
2001-03-07