PEF20550HV2.1XT Infineon Technologies, PEF20550HV2.1XT Datasheet - Page 286
PEF20550HV2.1XT
Manufacturer Part Number
PEF20550HV2.1XT
Description
Manufacturer
Infineon Technologies
Datasheet
1.PEF20550HV2.1XT.pdf
(407 pages)
Specifications of PEF20550HV2.1XT
Lead Free Status / Rohs Status
Compliant
- Current page: 286 of 407
- Download datasheet (2Mb)
Decentral D-Channel Handling Scheme
This option applies for IOM channels where the even timeslot consists of an 8 bit monitor
channel and the odd timeslot of a 2 bit D-Channel followed by a 4 bit C/I channel followed
by the 2 monitor handshake bits MR and MX.
The monitor channel is handled by the MF handler according to the selection of
handshake or non-handshake protocol. If the handshake option is selected (IOM-2), the
MF handler controls the MR and MX bits according to the IOM-2 specification. If the no
handshake option is selected (IOM-1), the MF handler sets both MR and MX bits to
logical 1; the MR and MX bit positions can then, if required, be accessed together with
the 4 bit C/I field via the even control memory address.
The D-Channel is not processed at all, i.e. the input in upstream direction is ignored and
the output in downstream direction is set to high impedance. External D-Channel
controllers, e.g. 2
order to realize decentral D-Channel processing.
The 4 bit C/I channel can be accessed by the P for controlling layer-1 devices, or by
the ELIC arbiter to transmit the available/blocked information to the requesting HDLC
controller.
In upstream direction each change in the C/I value is reported by interrupt to the P and
the CFI time slot address is stored in the CIFIFO (refer to chapter 5.5.2). A C/I change
is detected if the value of the current CFI frame is different from the value of the previous
frame i.e. after, at most, 125 s.
To initialize two consecutive CFI timeslots for the arbiter D-Channel handling scheme,
the CM codes as given in table 43 must be used.
Table 43
Control Memory Codes and Data for the Arbiter D-Channel Handling Cheme
CM Address
Even timeslot downstream
Odd timeslot downstream
Even timeslot upstream
Odd timeslot upstream
The 4 bit C/I channel can be accessed by the µP for controlling layer-1 devices. In
upstream direction each change in the C/I value is reported by interrupt to the µP and the
CFI timeslot address is stored in the CIFIFO (refer to chapter 5.5.2). A C/I change is
detected if the value of the current CFI frame is different from the value of the previous
frame i.e. after at most 125 s.
Semiconductor Group
IDECs PEB 2075, can then be connected to each IOM interface in
CM Code
1010
1011
1000
0000
286
CM Data
11 C/I 11
XXXXXXXX
XX C/I XX
XXXXXXXX
B
Application Hints
B
B
B
PEB 20550
PEF 20550
01.96
Related parts for PEF20550HV2.1XT
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
Extended Line Card Interface Controller Elic
Manufacturer:
Infineon Technologies Corporation
Datasheet:
Part Number:
Description:
Manufacturer:
Infineon Technologies AG
Datasheet:
Part Number:
Description:
Manufacturer:
Infineon Technologies AG
Datasheet:
Part Number:
Description:
Manufacturer:
Infineon Technologies AG
Datasheet:
Part Number:
Description:
Manufacturer:
Infineon Technologies AG
Datasheet:
Part Number:
Description:
Manufacturer:
Infineon Technologies AG
Datasheet:
Part Number:
Description:
Manufacturer:
Infineon Technologies AG
Datasheet:
Part Number:
Description:
Manufacturer:
Infineon Technologies AG
Datasheet:
Part Number:
Description:
16-bit microcontroller with 2x2 KByte RAM
Manufacturer:
Infineon Technologies AG
Datasheet:
Part Number:
Description:
NPN silicon RF transistor
Manufacturer:
Infineon Technologies AG
Datasheet:
Part Number:
Description:
NPN silicon RF transistor
Manufacturer:
Infineon Technologies AG
Datasheet:
Part Number:
Description:
NPN silicon RF transistor
Manufacturer:
Infineon Technologies AG
Datasheet:
Part Number:
Description:
NPN silicon RF transistor
Manufacturer:
Infineon Technologies AG
Datasheet:
Part Number:
Description:
Si-MMIC-amplifier in SIEGET 25-technologie
Manufacturer:
Infineon Technologies AG
Datasheet:
Part Number:
Description:
IGBT Power Module
Manufacturer:
Infineon Technologies AG
Datasheet: