PEF 2054 N V2.1 Infineon Technologies, PEF 2054 N V2.1 Datasheet - Page 210

• Manufacturer Part Number: PEF 2054 N V2.1
• Description: IC INTERFACE CTRLR PCM LCC-44
• Manufacturer: Infineon Technologies
• Series: EPICr

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

– 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