MT90222 ZARLINK [Zarlink Semiconductor Inc], MT90222 Datasheet - Page 66
MT90222
Manufacturer Part Number
MT90222
Description
4/8/16 Port IMA/TC PHY Device
Manufacturer
ZARLINK [Zarlink Semiconductor Inc]
Datasheet
1.MT90222.pdf
(155 pages)
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6.0
6.1
The MT90222/3/4 includes 224 24-bit counters to provide statistical information on the device’s operation. All the
counters are cleared by a hardware reset. A maskable interrupt can be generated when the counter overflows.
Counters can also be latched to capture the state of all registers at once.
A predetermined value can also be loaded into a counter. This feature can be used to generate an interrupt after a
specified number of cells is processed. Counter values are incremented by 1 for every event occurrence and when
the count reaches all 1’s, will overflow (to all 0’s).
6.1.1
There are four counters associated with the each of the 24 UTOPIA Inputs (from ATM layer to the MT90222/3/4) for
a total of 96 counters. These counters record the following information:
•
•
•
•
6.1.2
There are four counters associated with the each of the sixteen transmit TDM links for a total of 64 Transmit counters.
These counters record the following information:
•
•
•
•
6.1.3
There are four counters associated with each of the sixteen receive TDM links for a total of 64 receive counters.
These counters record the following information and are active as soon as the RX TDM port is enabled:
•
•
•
•
Note that the number of Stuff cells is included in the total number of User cells.
the total number of cells or the total number of user cells received at the UTOPIA Input I/F
the total number of Idle Cells received at the UTOPIA Input I/F, removed or not
the total number of Unassigned Cells received at the UTOPIA Input I/F, removed or not
the number of cells having a single or multiple bit error in the HEC, removed or not but not including the cells
where the HEC is corrected
the total number of cells sent through the TDM link
the total number of Idle/Filler cells or the total number of user cells sent through the TDM link
the total number of Stuff cells sent through the TDM link
the total number of ICP cells sent through the TDM link
the total number of cells received through the TDM link or total number of Stuff events received on the link
the total number of Idle/Filler cells received through the TDM link, with good or bad HEC or the total number
of User cells
the total number of ICP Cells with violation received through the TDM link
the total number of cells with wrong HEC, discarded or not, received through the TDM link but not including
the cells where the HEC is corrected
Counter Block
Support Blocks
UTOPIA Input I/F counters
Transmit TDM I/F Counters
Receive TDM I/F Counters
Zarlink Semiconductor Inc.
MT90222/3/4
66
Data Sheet
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