cx28224 Mindspeed Technologies, cx28224 Datasheet - Page 266

• Manufacturer Part Number: cx28224
• Description: Cx28224/5/9 Inverse Multiplexing For The Atm Ima Family
• Manufacturer: Mindspeed Technologies

IMA Version 1.1 PICS Proforma
Table A-9. Test Pattern Procedure (TPP) Functions
A-20
TPP.1
TPP.2
TPP.3
TPP.4
TPP.5
TPP.6
TPP.7
TPP.8
TPP.9
TPP.10
Comments:
Item
Does the implementation activate the Test Pattern procedure in the
transmit direction?
Does the implementation use the Test Link Command field in the
ICP cell (as defined in the Tx Test Control field in Table 2 on page
31) to request the FE to activate the loop back of the test pattern
contained in the Tx Test Pattern field?
Does the implementation use the Tx LID field defined in the Tx Test
Control field in Table 2 on page 31 to identify to the FE which
transmit link the FE should extract the Tx Test Pattern from in the
received ICP cells?
Does the implementation send any changed values of the Test Link
Command, Tx LID and Tx Test Pattern fields in ICP cells for at least
2 consecutive IMA frames over each link within the IMA group?
Does the implementation continue to send the same values of the
Test Link Command, Tx LID and Tx Test Pattern fields as long as
the IMA transmitter wants the FE IMA unit to loop back the test
pattern?
Does the implementation monitor the incoming ICP cells on the
links already recognized in the group to detect a change of the Test
Link Command?
If the Test Link Command field is detected as active over the links
already recognized in the group and over the test link, does the
implementation copy the value of the Tx Test Pattern field received
from the test link, indicated over the Tx LID field, into the Rx Test
Pattern field on every subsequent ICP cell sent over all outgoing
links in the group?
Does the implementation continue sending the same value over
the Rx Test Pattern field until the IMA transmitter has received an
indication to stop looping the pattern, to loop a new pattern
received from the same link over the Tx Test Pattern, or to loop the
test pattern received from another link (indicated over the Tx LID
field)?
Does the implementation return the “0xFF” pattern over the Rx Test
Pattern field when the incoming test command is inactive or the
test link is not detected?
Does the implementation only handle one test pattern per IMA
group at any given time?
Protocol feature
Mindspeed Technologies
(O-31)
(O-31)
(O-31)
(O-31)
Cond. for
Status
™
Status
Pred.
M
M
M
M
M
M
M
M
M
O
(O-31)
(CR-12)
(CR-12)
(CR-12)
(CR-12)
(R-153)
(R-154)
(R-155)
(R-156)
(R-157)
Ref.
CX28224/5/9 Data Sheet
Yes X No__
Yes X No__
Yes X No__
Yes X No__
Yes X No__
Yes X No__
Yes X No__
Yes X No__
Yes X No__
Yes X No__
28229-DSH-001-D
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