psb21381 Infineon Technologies Corporation, psb21381 Datasheet - Page 87
psb21381
Manufacturer Part Number
psb21381
Description
Siemens Codec With S/t Transceiver
Manufacturer
Infineon Technologies Corporation
Datasheet
1.PSB21381.pdf
(270 pages)
- Current page: 87 of 270
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2.3.7
The layer-1 activation/ deactivation can be controlled by an internal statemachine via the
IOM-2 C/I0 channel or by software via the microcontroller interface directly. In the default
state the internal layer-1 state machine of the SCOUT-SX) is used.
To disable the internal state machine TR_CONF0.L1SW must be set to ’1’ and a C/I code
TIM (’0000’) has to be programmed into CIX0.CODX0
If the internal state machine is disabled the layer-1 commands, which are normally
generated by the internal state machine can be written directly into the TR_CMD register
or the received status read out from the TR_STA register respectively. The SCOUT
layer-1 control flow is shown in figure 48.
Figure 48
Layer-1 Control
Data Sheet
Control of Layer-1
Register
CIX0
CIR0
C/I
Command
C/I
Indication
Microcontroller Interface
Layer-1 Control
Machine
Layer-1
State
Transmit
INFO
Receive
INFO
77
Command Register
(TR_CONF.L1SW)
Disable internal
Status Register
for Transmitter
Statemachine
of Receiver
(TR_CMD)
(TR_STA)
Transmitter
Receiver
layer1_ctl.vsd
PSB 21381/2
PSB 21383/4
Interfaces
2001-03-12
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