PEB 20570 F V3.1 Infineon Technologies, PEB 20570 F V3.1 Datasheet - Page 121
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
1.PEB_20570_F_V3.1.pdf
(308 pages)
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
PEB20570FV31XP
SP000007243
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4.4
PCM Interface Features
The PCMU enables the DSP to control the 4 PCM ports. The DSP accesses the
incoming PCM time slots, and prepares the outgoing PCM time slots. In general, the
PCMU enables the DSP to switch time slots from PCMU to PCMU, IOMU and TRANSIU.
The basic structure and programming model of the PCMU is similar to the IOMU.
However, the PCMU provides the double capacity of the IOMU. Thus it may handle up
to 4 PCM ports and an overall of 128 time slots per frame in the receive direction and
128 time slots per frame in the transmit direction.
The following PCMU data rate modes are available:
• Four streams of 2.048 Mbit/s each (single and double clock)
• Two streams of 4.096 Mbit/s each (single and double clock)
• One stream of 8.192 Mbit/s (single and double clock)
• One stream of 16.384 Mbit/s (single clock). It is programmable, whether the first or the
Note: Other data rates, e.g. 3 x 8.192 Mbit/s are possible by a firmware change. This is
Tri-state control is performed via pins TSCn, programmable per time slot and port.
Data Sheet
second 128 time slots of the 8 kHz frame are handled in the PCMU.
realized by assigning DSP data memory to the PCMU.
PCM Unit
104
Functional Description
PEB 20570
PEB 20571
2003-07-31
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