PEF 2055 N V2.1 Infineon Technologies, PEF 2055 N V2.1 Datasheet - Page 59

• Manufacturer Part Number: PEF 2055 N V2.1
• Description: IC INTERFACE CTRLR PCM LCC-44
• Manufacturer: Infineon Technologies
• Series: EPICr

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

Access in multiplexed P-interface mode:
CDS2..0
CUS3..0
4.2.2.5 Configurable Interface Bit Shift Register (CBSR)
Access in demultiplexed P-interface mode:
Reset value: 00
Semiconductor Group
bit 7
0
CFI Downstream bit Shift 2..0.
From the zero offset bit position (CBSR = 20
and upstream) can be shifted by up to 6 bits to the left (within the time slot
number TSN programmed in CTAR) and by up to 2 bits to the right (within
the previous time slot TSN – 1) by programming the CBSR:CDS2..0 bits:
CBSR:CDS2..0
000
001
010
011
100
101
110
111
The bit shift programmed to CBSR:CDS2..0 affects both the upstream and
downstream frame position in the same way.
CFI Upstream bit Shift 3..0.
These bits shift the upstream CFI frame relative to the downstream frame by
up to 15 bits. For CUS3..0 = 0000, the upstream frame is aligned with the
downstream frame (no bit shift).
CDS2
H
CDS1
CDS0
Time Slot No.
TSN – 1
TSN – 1
TSN
TSN
TSN
TSN
TSN
TSN
59
CUS3
read/write
read/write
Detailed Register Description
H
CUS2
) the CFI frame (downstream
Bit No.
1
0
7
6
5
4
3
2
address: A
OMDR:RBS = 1
address: 34
CUS1
PEB 2055
PEF 2055
H
bit 0
H
CUS0