pef82902 Infineon Technologies Corporation, pef82902 Datasheet - Page 42

• Manufacturer Part Number: pef82902
• Description: 4b3t Second Generation Modular Isdn Nt Intelligent Extended
• Manufacturer: Infineon Technologies Corporation

The frame is composed of three channels:
• Channel 0 contains 144-kbit/s of user and signaling data (2B + D), a MONITOR
• Channel 1 contains two 64-kbit/s intercommunication channels (IC), a MONITOR
• Channel 2 is used for D-channel access mechanism (TlC-bus, S/G bit). Additionally,
2.3.2
The IOM
different functional units of the T-SMINT
IOM
IOM
The PCM data of the functional units
• S-transceiver (S) and the
• Controller data access (CDA)
can be configured by programming the time slot and data port selection registers
(TSDP). With the TSS bits (Time Slot Selection) the PCM data of the functional units can
be assigned to each of the 12 PCM time slots of the IOM
(Data Port Selection) the output of each functional unit is assigned to DU or DD
respectively. The input is assigned vice versa. With the control registers (CR) the access
to the data of the functional units can be controlled by setting the corresponding control
bits (EN, SWAP).
The IOM
• U and S transceiver
• MONITOR channel
• C/I channels (CI0,CI1)
• TIC bus (TIC) and
• D- and/or B-channel for HDLC control
The access to these channels is controlled by the registers S_CR, HCI_CR and
MON_CR.
The IOM
control registers IOM_CR, SDS1_CR and SDS2_CR.
The following
Data Sheet
programming channel (MON0) and a command/indication channel (CI0) for control
and programming of e.g. the U-transceiver.
programming channel (MON1) and a command/indication channel (CI1) for control
and programming of e.g. the S-transceiver.
channel 2 supports further IC and MON channels.
â
â
-2 interface. Additionally it provides a microcontroller access to all time slots of the
-2 interface via the four controller data access registers (CDA).
â
â
â
-2 handler also provides access to the
-2 handler offers a great flexibility for handling the data transfer between the
-2 interface with the two Serial Data Strobes (SDS1,2) is controlled by the
IOM
Figure 11
â
-2 Handler
shows the architecture of the IOM
â
28
IX and voice/data devices connected to the
â
â
-2 handler.
-2 frame. With the DPS bit
Functional Description
PEF 81902
2001-11-12