PEF2256 INFINEON [Infineon Technologies AG], PEF2256 Datasheet - Page 362
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PEF2256
Manufacturer Part Number
PEF2256
Description
E1/T1/J1 Framer and Line Interface Component for Long- and Short-Haul Applications
Manufacturer
INFINEON [Infineon Technologies AG]
Datasheet
1.PEF2256.pdf
(518 pages)
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Framer Mode Register 1 (Read/Write)
Value after reset: 00
FMR1
CTM
EDL
PMOD
CRC
User’s Manual
Hardware Description
CTM
7
Channel Translation Mode
0 =
1 =
The different channel translation modes are described in
Page
Enable DL-Bit Access through Register XDL(3:1)
Only applicable in F4, F24 or F72 frame format.
0 =
1 =
PCM Mode
For E1 application this bit must be set low. Switching from E1 to T1 or
vice versa the device needs up to 20 s to settle up to the internal
clocking.
0 =
1 =
Enable CRC6
This bit is only significant when using the ESF format.
0
1
H
Channel translation mode 0
Channel translation mode 1
PCM 30 or E1 mode.
PCM 24 or T1/J1 mode (see RC0.SJR for T1/J1 selection).
CRC6 check/generation disabled. For transmit direction, all
CRC bit positions are set.
CRC6 check/generation enabled.
135.
Normal operation. The DL-bits are taken from system highway
or if enabled by CCR1.EDLX from the XFIFO of the signaling
controller.
DL-bit register access. The DL-bit information are taken from
the registers XDL(3:1) and overwrite the DL-bits received on
the system highway (pin XDI) or from the internal XFIFO of the
signaling controller. However, transmission of the contents of
registers XDL(3:1) is disabled if transparent mode is enabled
(FMR4.TM).
EDL
PMOD
362
CRC
ECM
SSD0
DS1.1, 2003-10-23
T1/J1 Registers
PEF 2256 H/E
XAIS
0
Table 31
FALC
(1D)
®
56
on
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