PEF2054 SIEMENS [Siemens Semiconductor Group], PEF2054 Datasheet - Page 142
![no-image](/images/no-image-200.jpg)
PEF2054
Manufacturer Part Number
PEF2054
Description
ICs for Communications
Manufacturer
SIEMENS [Siemens Semiconductor Group]
Datasheet
1.PEF2054.pdf
(269 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
PEF20542F
Manufacturer:
infineon
Quantity:
28
Company:
Part Number:
PEF2054N
Manufacturer:
infineon
Quantity:
70
Part Number:
PEF2054NV1.0
Manufacturer:
SIEMENS/西门子
Quantity:
20 000
Part Number:
PEF2054NV2.1
Manufacturer:
LANTIQ
Quantity:
20 000
- Current page: 142 of 269
- Download datasheet (2Mb)
W:MACR
wait for STAR:MAC = 0
R:MADR
5.3.3.3 Access to the Control Memory Data Field
Writing to or reading the control memory (CM) data field may serve different purposes
depending on the function given to the corresponding CFI time slot which is defined by
the 4 bit code field value:
There are two types of commands which give access to the CM data field:
The memory operation code MACR:MOC = 111X is used for writing to the CM data field
and code field simultaneously. The MADR content is transferred to the data field while
the MACR:CMC3 … 0 bits are transferred to the code field. This command is explained
in more detail in chapter 5.3.3.4.
The memory operation code MACR:MOC = 1001 is used for reading or writing to the CM
data field. Since the CM code field is not affected, this command makes only sense if the
related CFI time slot has already the desired functionality.
The Procedure for Writing to the CM Data Field (using the MOC = 1001 command)
is
W:MADR
W:MADR
R:MADR
For test purposes this setting shall be read back:
W:MAAR
Table 23
CFI Time Slot Application
Switched channel
Preprocessed channel
The Procedure for Reading the CM Data Field is
W:MAAR
W:MACR
wait for STAR:MAC = 0
R:MADR
Semiconductor Group
P channel
= 1010 1010
= 1110 0000
= XXXX 1001
= value
= CFI time slot address according figure 48
= 0100 1000
= CFI time slot address according figure 48
= 1100 1000
= value
B
B
B
B
B
= E0
= 48
= C8
; address of upstream PCM port 1, time slot 10
; read back of MD3 … 0
according to figure 48
H
H
H
; read access with MOC = 1100
142
Meaning of CM Data Field
Pointer to PCM interface
C/I or SIG value
CFI idle code
Application Hints
PEB 2055
PEF 2055
Related parts for PEF2054
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
![S80C32-12](/images/manufacturer_photos/0/6/607/siemens_semiconductor_group_tmb.jpg)
Part Number:
Description:
Intel 80C32 - Siemens SAB-C501, Nearest Equivalent Replacement
Manufacturer:
Siemens Semiconductor Group
![BAT14-033](/images/no-image3.png)
Part Number:
Description:
HiRel Silicon Schottky Diode (HiRel Discrete and Microwave Semiconductor Medium barrier diodes for detector and mixer applications)
Manufacturer:
SIEMENS [Siemens Semiconductor Group]
Datasheet:
![BXY43-P1](/images/no-image3.png)
Part Number:
Description:
HiRel Silicon PIN Diode (HiRel Discrete and Microwave Semiconductor Current controlled RF resistor for RF attenuators and switches)
Manufacturer:
SIEMENS [Siemens Semiconductor Group]
Datasheet:
![BXY44-T1](/images/no-image3.png)
Part Number:
Description:
HiRel Silicon PIN Diode (HiRel Discrete and Microwave Semiconductor Current controlled RF resistor for RF attenuators and switches)
Manufacturer:
SIEMENS [Siemens Semiconductor Group]
Datasheet:
![IRL80](/images/no-image3.png)
Part Number:
Description:
GaAs-Infrarot-Sendediode GaAs Infrared Emitter
Manufacturer:
SIEMENS [Siemens Semiconductor Group]
Datasheet:
![IRL81](/images/no-image3.png)
Part Number:
Description:
GaAlAs-Infrarot-Sendediode GaAlAs Infrared Emitter
Manufacturer:
SIEMENS [Siemens Semiconductor Group]
Datasheet:
![BSM50GB100D](/images/manufacturer_photos/0/6/607/siemens_semiconductor_group_tmb.jpg)
Part Number:
Description:
IGBT MODULE
Manufacturer:
Siemens Semiconductor Group
Datasheet:
![BSM181R](/images/manufacturer_photos/0/6/607/siemens_semiconductor_group_tmb.jpg)
Part Number:
Description:
SIMOPAC Module (Power module Single switch N channel Enhancement mode)
Manufacturer:
Siemens Semiconductor Group
Datasheet:
![BSM254F](/images/manufacturer_photos/0/6/607/siemens_semiconductor_group_tmb.jpg)
Part Number:
Description:
(BSMxxx) TRANSISTOR
Manufacturer:
Siemens Semiconductor Group
Datasheet:
![BSM111AR](/images/manufacturer_photos/0/6/607/siemens_semiconductor_group_tmb.jpg)
Part Number:
Description:
SIMOPAC Module (Power module Single switch N channel Enhancement mode)
Manufacturer:
Siemens Semiconductor Group
Datasheet:
![BUZ48](/images/manufacturer_photos/0/6/607/siemens_semiconductor_group_tmb.jpg)
Part Number:
Description:
main ratings
Manufacturer:
Siemens Semiconductor Group
Datasheet:
![TDA4716C](/images/manufacturer_photos/0/6/607/siemens_semiconductor_group_tmb.jpg)
Part Number:
Description:
Manufacturer:
Siemens Semiconductor Group
Datasheet:
![DL440M](/images/manufacturer_photos/0/6/607/siemens_semiconductor_group_tmb.jpg)
Part Number:
Description:
Manufacturer:
Siemens Semiconductor Group
Datasheet:
![SDA5255](/images/manufacturer_photos/0/6/607/siemens_semiconductor_group_tmb.jpg)
Part Number:
Description:
Manufacturer:
Siemens Semiconductor Group
Datasheet: