PEF 2054 N V2.1 Infineon Technologies, PEF 2054 N V2.1 Datasheet - Page 136

• 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

W:MACR =
Table 22
MOC3 … 0
0000
0001
0011
0010
0111
0110
0101
0100
W:MACR = 1000 0000
The Procedure for Writing to the Upstream DM Data Field is
W:MADR = value to be transmitted in the PCM (sub)time slot
W:MAAR = address of the desired (upstream)
MOC3 … 0 defines the bandwidth and the position of the subchannel according to
table 22.
The Procedure for Reading the DM Data Field is
W:MAAR = address of the desired PCM time slot encoded according to figure 48
wait for STAR:MAC = 0
R:MADR = value
Figure 49 illustrates the access to the Data Memory Data Field.
1)
2)
Semiconductor Group
The U/D bit of MAAR will implicitly be set to 1.
When reading a DM data field location, all 8 bits are read regardless of the bandwidth selected by the MOC
bits.
figure 48
bit 7
0
B
MOC3
= 80
H
Transferred Bits
–
bits 7 … 0
bits 7 … 4
bits 3 … 0
bits 7 … 6
bits 5 … 4
bits 3 … 2
bits 1 … 0
2)
MOC2
136
MOC1
1)
PCM time slot encoded according to
MOC0
Channel Bandwidth
–
64 kbit/s
32 kbit/s
32 kbit/s
16 kbit/s
16 kbit/s
16 kbit/s
16 kbit/s
0
Application Hints
0
PEB 2055
PEF 2055
bit 0
0