pef20550 Infineon Technologies Corporation, pef20550 Datasheet - Page 366
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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Reading the current upstream C/I value of IOM-2 channel 0:
Write
Write
Read
6.1.6.2 Enabling the Arbiter
With the layer-1 link to terminal B established, the D-channel arbiter is set to monitor
subscriber B in addition to subscriber A:
Write
The D-channel arbiter is now resetting the downstream arbitration control bit of IOM-
2 port 0, channels 0 and 1 to ‘available’ (C/I code ‘1000’)
receive D-channel data from subscribers A and B.
6.1.6.3 Build-up of Layer 2
The ELIC now being ready to communicate to terminal B via the D-channel, layer-2
communication can be built up according to the ETSI / E-DSS1 protocol. First, the ELIC
sends an UI-frame to the terminal being called up; as in chapter 6.1.4.4, the D-channel
communication that follows is shown in abbreviated form:
Assigning an ID to the terminal:
Write
Write
Write
Read
Received at RFIFO of SACCO-A from terminal B:
Sent from XFIFO of SACCO-A to terminal B:
Received at RFIFO of SACCO-A from terminal B:
Sent from XFIFO of SACCO-A to terminal B:
Semiconductor Group
MAAR = 98
MACR = C8
MADR = F3
DCE0 = 03
XDC
XFIFO =
CMDR = 0A
ISTA_A= 10
= 01
H
H
H
H
H
H
H
upstream CM address where C/I value changed
read data from the CM data field
upstream C/I code ‘1100’ (active indication)
that the line of IOM-2 channel 1 is active
enable the D-channel arbiter to monitor the D-channels of
IOM-2 port 0, channels 1 and 0
direct SACCO-A transmission to IOM-2 port 0, channel 1
UI frame: Set_up (with service indicator)
transmit transparent frame; transmit message end
Transmit Pool Ready (XPR)
366
UI-frame: ID_Request
UI-frame: ID_Assigned
U-frame: SABME
Unnumbered Acknowledge
the ELIC is now ready to
Application Notes
confirmation
PEB 20550
PEF 20550
01.96
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