PSB21383HV1.3XT Infineon Technologies, PSB21383HV1.3XT Datasheet - Page 47
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PSB21383HV1.3XT
Manufacturer Part Number
PSB21383HV1.3XT
Description
Manufacturer
Infineon Technologies
Datasheet
1.PSB21383HV1.3XT.pdf
(270 pages)
Specifications of PSB21383HV1.3XT
Number Of Line Interfaces
1
Control Interface
HDLC
Lead Free Status / Rohs Status
Compliant
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2.2.2
The IOM-2 handler offers a great flexibility for handling the data transfer between the
different functional units of the SCOUT and voice/data devices connected to the IOM-2
interface. Additionally it provides a microcontroller access to all time slots of the IOM-2
interface via the four controller data access registers (CDA). Figure 21 shows the
architecture of the IOM-2 handler. For illustrating the functional description it contains all
configuration and control registers of the IOM-2 handler. A detailed register description
can be found in chapter 7.3
The PCM data of the functional units
• Codec (CO)
• Transceiver (TR) 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-2 frame. With the DPS bit (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).
To avoid data collisions it has to be noticed that the C/I and D channels of the enabled
transceiver are always related to time slot 3. If the monitor handler is enabled its data is
related to time slot TS (2, 6 or 10) and the appropriate MR and MX bits to time slot TS+1
depending on the MCS bits of register MON_CR.
The IOM-2 handler provides also access to the
• MONITOR channel (MON)
• C/I channels (CI0,CI1)
• TIC bus (TIC) and
• D- and B-channel for HDLC control
The access to these channels is controlled by the registers HCI_CR and MON_CR.
The IOM-2 interface with the two Serial Data Strobes (SDS1,2) is controlled by the
control registers IOM_CR, SDS1_CR and SDS2_CR.
The reset configuration of the SCOUT IOM-2 handler corresponds to the defined frame
structure and data ports in IOM-2 terminal mode (see figure 20).
Data Sheet
IOM-2 Handler
37
PSB 21381/2
PSB 21383/4
Interfaces
2001-03-12
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