PSB21382 INFINEON [Infineon Technologies AG], PSB21382 Datasheet - Page 98

• Manufacturer Part Number: PSB21382
• Description: Siemens Codec with S/T Transceiver
• Manufacturer: INFINEON [Infineon Technologies AG]

Data Sheet
2.3.7.2.1 Activation initiated by the Terminal (TE, SCOUT)
INFO 1 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 3 has to be started.
Data can be transmitted if INFO 4 has been received.
Figure 53
Example of Activation/Deactivation initiated by the Terminal (TE).
Activation/Deactivation completely under Software Control
µC Interface
TDDIS='1',
TDDIS='0'
TDDIS='1',
T1
T2
T3
TE
TE
TE
XINF=’010’
RINF=’01’
XINF=’000’
RINF=’10’
XINF=’011’
RINF='11'
RINF='00'
XINF=’000’
: 2 to 6 frames (0.5 ms to 1.5 ms)
:
:
2 frames (0.5 ms)
4 frames (1 ms)
TE
T1
T2
T3
TE
TE
TE
S/T Interface
INFO 0
INFO 1
INFO 2
INFO 0
INFO 3
INFO 4
INFO 0
INFO 0
INFO 0
88
NT
act_deac_te-ext_s.vsd
PSB 21381/2
PSB 21383/4
Interfaces
2001-03-12