pef20550 Infineon Technologies Corporation, pef20550 Datasheet - Page 145
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pef20550
Manufacturer Part Number
pef20550
Description
Extended Line Card Interface Controller Elic
Manufacturer
Infineon Technologies Corporation
Datasheet
1.PEF20550.pdf
(407 pages)
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Note: When reading a DM-data field location, all 8 bits are read regardless of the
2. Writing to the upstream DM-code (tristate) field.
MACR:
Note: The tristate field is exchanged with the 4 least significant bits (LSBs) of the MADR.
3. Writing data to the upstream or downstream CM-data field (e.g. signaling code).
MACR:
4. Writing data to the upstream or downstream CM-data field and code field
MACR:
a) Switching Applications
Note: The corresponding CFI time slot bits to be transferred are chosen in the
Semiconductor Group
RWS
RWS
Control-reading the upstream DM-code (tristate).
Reading data from the upstream or downstream CM-data field.
(e.g. switching a CFI to/from PCM-connection).
0
bandwidth selected by the MOC-bits.
CSCR-register.
MOC = 1100
MOC = 1101
The 4-bit code field of the control memory (CM) defines the functionality of a
CFI time slot and thus the meaning of the corresponding data field. This 4-bit
code, written to the MACR:CMC3..0 bit positions, will be transferred to the
CM-code field. The 8-bit MADR value is at the same time transferred to the
CM-data field. There are codes for switching applications, pre-processed
applications and for direct P-access applications, as shown below:
CMC = 0000
CMC = 0001
CMC = 0010
CMC = 0011
CMC = 0100
CMC = 0101
CMC = 0110
CMC = 0111
MOC3
1
1
MOC2
0
1
Read/write tristate info from/to single PCM time slot
Write tristate info to all PCM time slots
Unassigned channel (e.g. cancelling an assigned channel)
Bandwidth 64 kBit/s
Bandwidth 32 kBit/s
Bandwidth 32 kBit/s
Bandwidth 16 kBit/s
Bandwidth 16 kBit/s
Bandwidth 16 kBit/s
Bandwidth 16 kBit/s
MOC1
0
1
145
MOC0
CMC3
1
PCM time slot bits transferred: 7..0
PCM time slot bits transferred: 3..0
PCM time slot bits transferred: 7..4
PCM time slot bits transferred: 1..0
PCM time slot bits transferred: 3..2
PCM time slot bits transferred: 5..4
PCM time slot bits transferred: 7..6
Detailed Register Description
CMC2
0
0
CMC1
0
0
PEB 20550
PEF 20550
CMC0
0
0
01.96
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