PEB 20570 F V3.1 Infineon Technologies, PEB 20570 F V3.1 Datasheet - Page 135

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PEB 20570 F V3.1

Manufacturer Part Number
PEB 20570 F V3.1
Description
IC LINE CARD CTRLR HDLC TQFP-100
Manufacturer
Infineon Technologies
Datasheet

Specifications of PEB 20570 F V3.1

Function
Line Card Controller
Interface
ISDN
Voltage - Supply
3.13 V ~ 3.47 V
Current - Supply
272.6mA
Operating Temperature
0°C ~ 70°C
Mounting Type
Surface Mount
Package / Case
100-LFQFP
Includes
Layer-1 Control, Signaling Control, Signal Processing, Voice Channel Handling
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Power (watts)
-
Number Of Circuits
-
Other names
PEB20570FV3.1X
PEB20570FV31XP
SP000007243
The processor handles the HDLCU (tasks 1) during every IOM frame, i.e. every 125 s.
If a 16-kbit/s channel is handled, the task 2 is performed about every 4th to 5th frame (4
x 2-bit writing to the HDLCU minus “0-detection” => 8-bit output).
At the beginning of a frame, the DSP checks if the HDLCU is busy (HHOLD = ’0’).
The DSP may only access the buffers and command RAM when DSPCTRL = ‘1’.
In transmit direction, the DSP writes data 8-bit wise into the Transmit Input Buffers,
reads the processed data from the Transmit Output Buffers and places the coded data
into the assigned destination time slot like in the following example:
• 2-bit wise writing into the D-channel of an IOM-2 interface of the IOM Unit, or into the
• 8-bit wise writing into a signalling channel of the PCM highway by writing into the PCM
In general, the HDLC controller can handle all 32 HDLC channels at different data rates
using any TDM channel: e.g.
• 16 kbit/s for D-channel signalling
• 64 kbit/s for B-channel signalling
• 8 kbit/s for proprietary signalling (only PB version)
• 256 kbit/s for data transfer in transparent mode.
Data Sheet
TRANSIU in case of TRANSIU interface,
Unit.
118
Functional Description
PEB 20570
PEB 20571
2003-07-31

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