psb21391 Infineon Technologies Corporation, psb21391 Datasheet - Page 199

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

7.1.5
Value after reset: 00
TR_
CMD
Normally the signals in this register are generated by the layer 1 state machine. If the
internal layer 1 state machine is disabled (bit L1SW in TR_CONF = ’1’) this register can
be written by the microcontroller.
XINF
000: Transmit INFO 0
001: Transmit INFO 1W
010: Transmit INFO 1
011: Transmit INFO 3
100: Send continuos 192 kHz pulses (Test Mode 2)
101: Send single 4 kHz pulses (Test Mode 1)
11x: reserved
PD
0: Transceiver in operational mode
1: Transceiver in power down mode. From the analog part only the level detector is
LP_A
The setting of this bit corresponds to the C/I command ARL.
0: Analog loop is open
1: Analog loop is closed
Data Sheet
active. Additionally no clocks are provided and the complete digital part of the
transceiver is inactive if the CFS bit (see chapter 7.1.10) is set to ’1’.
TR_CMD - Transceiver Command Register
7
... Transmit INFO
... Power Down
... Loop Analog
XINF
H
0
189
0
PD
Detalled Register Description
LP_A
0
0
RD/WR (34
PSB 21391
PSB 21393
2001-03-07
H
)