PEF 2054 N V2.1 Infineon Technologies, PEF 2054 N V2.1 Datasheet - Page 133

• 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

Figure 48
Time Slot Encoding for the Different PCM and CFI Modes
Memory Access Time
Writing to MACR starts a memory write or read operation which takes a certain time.
During this time no further memory accesses may be performed i.e. the MADR, MAAR,
and MACR registers may not be written. The STAR:MAC bit indicates whether a memory
operation is still in progress (MAC = 1) or already completed (MAC = 0) and should
therefore be interrogated before each access.
Semiconductor Group
CFI Mode 0
PCM Mode 0
4 Duplex Ports
32 Tume-Slots/Port
CFI Mode 1
2 Duplex Ports
64 Time-Slots/Port
PCM Mode 1
2 Duplex Ports
64 Time-Slots/Port
CFI Mode 2
PCM Mode 2
1 Duplex Port
128 Time-Slots/Port
CFI Mode 3
8 Bidirectional Ports
16 Time-Slots/Port
U/D : (1) / Downstream (0)
U/D
U/D
U/D
U/D
U/D
Time-Slot# (0-15)
Time-Slot# (0-31)
Time-Slot# (0-63)
133
Time-Slot# (0-63)
Time-Slot# (0-127)
Port# (0-1)
Port# (0-3)
Port# (0-3)
Port# (0-1)
ITD08063
Application Hints
PEB 2055
PEF 2055