PEF 2055 N V2.1 Infineon Technologies, PEF 2055 N V2.1 Datasheet - Page 210
PEF 2055 N V2.1
Manufacturer Part Number
PEF 2055 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 2055 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
PEF2055NV2.1X
PEF2055NV21XK
SP000075706
PEF2055NV21XK
SP000075706
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– in case the CM code field has already been initialized with the ‘ P channel’ code:
Reading an Upstream CFI idle Value
– Initializing an upstream CFI time slot as a P channel:
– Reading the upstream CFI idle value:
Reading Back the Idle Value Transmitted at a Downstream CFI P Channel:
Reading Back the CFI Functionality of a given CFI Time Slot:
Cancelling of a Programmed CFI P Channel:
Writing a Downstream CFI Idle Value
– in case the CM code field has not yet been initialized with the ‘ P channel’ code:
Semiconductor Group
W:MADR
W:MAAR
W:MACR
W:MADR
W:MAAR
W:MACR
W:MADR
W:MAAR
W:MACR
W:MAAR
W:MACR
wait for STAR:MAC = 0
R:MADR
W:MAAR
W:MACR
wait for STAR:MAC = 0
R:MADR
W:MAAR
W:MACR
wait for STAR:MAC = 0
R:MADR
W:MADR
W:MAAR
W:MACR
= downstream CFI port and time slot encoded according to figure 48
= downstream CFI port and time slot encoded according to figure 48
= upstream CFI port and time slot encoded according to figure 48
= upstream CFI port and time slot encoded according to figure 48
= downstream CFI port and time slot encoded according to figure 48
= CFI port and time slot encoded according to figure 48
= CFI idle value to be transmitted
= 0111 1001
= CFI idle value to be transmitted
= 0100 1000
= don’t care
= 0111 1001
= 1100 1000
= received CFI idle value
= 1100 1000
= transmitted CFI idle value
= CFI port and time slot encoded according to figure 48
= 1111 0000
= XXXX code
= don’t care
= 0111 0000
B
B
B
B
B
B
B
B
= 79
= 48
= 79
= C8
= C8
= F0
= 70
; if code = 1001, the CFI time slot is a ‘ P channel’
H
H
H
H
H
H
H
; MOC code ‘1001’ (CM data field access)
; CM code ‘1001’ ( P transfer)
; code ‘0000’ (unassigned channel)
; MOC code ‘111X’ (CM code field access)
; MOC code ‘1001’ (CM data field access)
; MOC code ‘1001’ (CM data field access)
; CM code ‘1001’ ( P transfer)
210
Application Hints
PEB 2055
PEF 2055
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