pef20550 Infineon Technologies Corporation, pef20550 Datasheet - Page 321
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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exchange between the STDA (STDB) register and the CM data field, it is also necessary
to initialize the corresponding CFI timeslots as P channels.
The following sequences can be used to program, verify, and cancel a CFI P channel:
Writing a Downstream CFI Idle Value
– in case the CM code field has not yet been initialized with the ‘ P channel’ code:
– in case the CM code field has already been initialized with the ‘ P channel’ code:
Reading an Upstream CFI idle Value
– Initializing an upstream CFI timeslot as a P channel:
– Reading the upstream CFI idle value:
Reading Back the Idle Value Transmitted at a Downstream CFI P Channel:
Reading Back the CFI Functionality of a given CFI Timeslot:
Semiconductor Group
W:MADR
W:MAAR
W:MACR
W:MADR
W:MAAR
W:MACR
W:MADR
W:MAAR
W:MACR
W:MAAR
W:MACR
wait for STAR:MAC = 0
R:MADR
W:MAAR
W:MACR
wait for STAR:MAC = 0
R:MADR
W:MAAR
W:MACR
wait for STAR:MAC = 0
R:MADR
= CFI idle value to be transmitted
= downstream CFI port and timeslot encoded according to figure 84
= 0111 1001
= CFI idle value to be transmitted
= downstream CFI port and timeslot encoded according to figure 84
= 0100 1000
= don’t care
= upstream CFI port and timeslot encoded according to figure 84
= 0111 1001
= upstream CFI port and timeslot encoded according to figure 84
= 1100 1000
= received CFI idle value
= downstream CFI port and timeslot encoded according to figure 84
= 1100 1000
= transmitted CFI idle value
= CFI port and timeslot encoded according to figure 84
= 1111 0000
= XXXX code
B
B
B
B
B
B
B
= 79
= 48
= 79
= C8
= C8
= F0
; if code = 1001, the CFI timeslot is a ‘ P channel’
H
H
H
H
H
H
; MOC code ‘1001’ (CM data field access)
; CM code ‘1001’ ( P transfer)
; MOC code ‘111X’ (CM code field access)
; MOC code ‘1001’ (CM data field access)
; MOC code ‘1001’ (CM data field access)
; CM code ‘1001’ ( P transfer)
321
Application Hints
PEB 20550
PEF 20550
01.96
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