PEF 2054 N V2.1 Infineon Technologies, PEF 2054 N V2.1 Datasheet - Page 140
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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48
W:MACR
W:MACR
The MADR bits MD7 … MD0 control the PCM time slot bit positions 7 … 0 in the
following way:
MD7 … MD4 are not used (don’t care);
MD3 … MD0 select between the states high impedance (MD# = 0) or low impedance
(MD# = 1)
time slot Bit Position:
MADR Bits:
The Procedure for Writing to a Single PCM Tristate Field is
W:MADR
W:MAAR
The Procedure for Reading Back a (Single) PCM Tristate Field Location is
W:MAAR
wait for STAR:MAC = 0
R:MADR
The Procedure for Writing to all PCM Tristate Field Positions is
W:MADR
W:MACR
1)
Semiconductor Group
The U/D bit of MAAR will implicitly be set to 1.
= X X X X MD3 MD2 MD1 MD0
= address of the desired (upstream)
= 0110 000
= address of the desired (upstream)
= E0
= X X X X MD3 MD2 MD1 MD0
= 0110 1000
= X X X X MD3 MD2 MD1 MD0
H
B
7
B
= 60
MD3
= 68
H
H
6
5
140
MD2
B
B
B
1)
4
1)
PCM time slot according to figure 48
PCM time slot according to figure
3
MD1
2
Application Hints
1
PEB 2055
PEF 2055
MD0
0
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