PEB20571 INFINEON [Infineon Technologies AG], PEB20571 Datasheet - Page 91

• Manufacturer Part Number: PEB20571
• Description: ICs for Communications
• Manufacturer: INFINEON [Infineon Technologies AG]

position. The DELIC DSP software may evaluate the received T-bit to provide the user
with an additional data channel (under consideration). Note that this is an additional
feature to the OCTAT-P.
In transmit direction, the T-bit value is sent in the data stream from the DELIC to the VIP,
and passed on transparently to the U
DELIC’s data RAM. It is required e.g. for DECT synchronization.
S-bit
The S-bit received on the U
stream, and is logical OR’ ed with the detected far-end code violation. The result is sent
to the DELIC as status bit ’FECV’.
In transmit direction, the S-bit value is sent in the data stream from the DELIC to the VIP,
and passed on transparently to the U
in DELIC’s data RAM. It is required e.g. for switching a digital loop in the terminal.
CV-bit
The code violation bit received on the line is not transmitted to the DELIC.
4.2.5.3
A DC-balancing bit is inserted by the VIP according to the Balancing Bit Control (BBC)
bit transmitted to the VIP on the command line.
In receive direction, the DC balancing bit is received, but not evaluated.
4.2.6
All Command/Status bits used for VIP channel programming are divided into one group
used only during initialization, and one group used during normal operation.
Initialization Mode Command Bits
The bits of this group are used for VIP initialization or in operation modes where an
immediate reaction is not required. The initialization group includes command bits and
the channel address, stored in register TICCMR. Note that the usage of this group of bits
is limited in a way that only one channel may be accessed in each frame.
In test mode, the command word to VIP_n (CMD_n) and to Channel_m of VIP_n
(CMD_n_m) may be read by the DELIC in the next frame after issuing bits ’RD_n’ or
’RD’. The VIP mirrors the command word exactly as it was received, despite the bits
’WR’, ’WR_ST’, ’RD’. The VIP status is saved in the TRANSIU initialization status
(TICSTR) register, which includes status bits and the channel address.
Note: The commands must not be read during normal operation, since in this case the
Preliminary Data Sheet
reporting of the VIP status to the DELIC would not be possible.
DC-Balancing Bit
IOM-2000 Command and Status Interface
PN
line interface is extracted by the VIP out of the data
PN
PN
terminal. The T-bit value may be programmed in
terminal. The S-bit value may be programmed
4-7
Functional Description
PEB 20571
DELIC
2003-08