PEF 2054 N V2.1 Infineon Technologies, PEF 2054 N V2.1 Datasheet - Page 209
PEF 2054 N V2.1
Manufacturer Part Number
PEF 2054 N V2.1
Description
IC INTERFACE CTRLR PCM LCC-44
Manufacturer
Infineon Technologies
Series
EPICr
Datasheet
1.PEF_2054_N_V2.1.pdf
(269 pages)
Specifications of PEF 2054 N V2.1
Function
PCM Interface Controller
Interface
ISDN, PCM
Number Of Circuits
1
Voltage - Supply
5V
Current - Supply
9.5mA
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
44-LCC
Includes
Board Controller, Channel Switching
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Power (watts)
-
Other names
PEF2054NV2.1XT
PEF2054NV21XK
SP000057916
SP000075438
PEF2054NV21XK
SP000057916
SP000075438
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Figure 74
The value written to the downstream CM data field location is transmitted repeatedly in
every frame (CFI idle value) during the corresponding downstream CFI time slot until a
new value is loaded or the ‘ P channel’ function is disabled. There are no interrupts
generated.
The upstream CM data field can be read at any time. The CM data field is updated in
every frame. The last value read represents the value received. There are no interrupts
generated.
For frame-synchronous exchange of data between the P and the CFI, the synchronous
transfer utility must be used (refer to chapter 5.7). Since this utility realizes the data
exchange between the STDA (STDB) register and the CM data field, it is also necessary
to initialize the corresponding CFI time slots as P channels.
The following sequences can be used to program, verify, and cancel a CFI P channel:
Semiconductor Group
P Access to the Upstream CFI Frame
MACR:
Up-
stream
1 1 0 0 1 0 0 0
CFI
Frame
0
127
1
Code Field
0
0
1
Control Memory
MADR:
209
Data Field
MAAR:
1
MA6
Application Hints
.
.
.
PEB 2055
PEF 2055
.
ITD08090
. MA0
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