PEF 2054 N V2.1 Infineon Technologies, PEF 2054 N V2.1 Datasheet - Page 65

• 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

Access in multiplexed P-interface mode:
and downstream memory blocks. Bits MA6..0 encode the CFI or PCM port and time slot
number as in the following tables:
Table 3
Time Slot Encoding for Data Memory Accesses
PCM-mode 1,3
PCM-mode 2
4.2.3.2 Memory Access Address Register (MAAR)
Access in demultiplexed P-interface mode:
Reset value: xx
The Memory Access Address Register MAAR specifies the address of the memory
access. This address encodes a CFI time slot for control memory (CM) and a PCM time
slot for data memory (DM) accesses. Bit 7 of MAAR (U/D bit) selects between upstream
PCM-mode 0
Semiconductor Group
bit 7
U/D
MA6
H
MA5
bit U/D
bits MA6..MA3, MA0
bits MA2..MA1
bit U/D
bits MA6..MA3, MA1, MA0
bit MA2
bit U/D
bits MA6..MA0
Data Memory Address
MA4
65
MA3
read/write
read/write
Detailed Register Description
MA2
Direction selection
Time slot selection
Logical PCM port number
Direction selection
Time slot selection
Logical PCM port number
Direction selection
Time slot selection
address: 1
OMDR:RBS = 0
address: 02
MA1
PEB 2055
PEF 2055
H
bit 0
H
MA0