MT90520AG ZARLINK [Zarlink Semiconductor Inc], MT90520AG Datasheet - Page 17

• Manufacturer Part Number: MT90520AG
• Description: 8-Port Primary Rate Circuit Emulation AAL1 SAR
• Manufacturer: ZARLINK [Zarlink Semiconductor Inc]

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2.10.1.6
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2.10.1.7
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2.10.1.8
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2.11
The MT90520 provides a number of statistics to allow monitoring of the MT90520. These statistics generally
parallel the operation of some of the service request source bits.
2.11.1
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2.11.2
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Lost Cell Counter Rollover
Misinserted Cell Counter Rollover
Write Underrun Counter Rollover
Write Overrun Counter Rollover
Late Cell Arrival Counter Rollover
Overall UDT Cell Counter Rollover
Reassembled Cell Counter Rollover
AAL1-byte Header Error (i.e., CRC and/or Parity Error) Counter Rollover
AAL1-byte Sequence Error Counter Rollover
Lost Cell Counter Rollover
Misinserted Cell Counter Rollover
Pointer Reframe Counter Rollover
Pointer Parity Error Counter Rollover
Write Underrun Counter Rollover
Write Overrun Counter Rollover
Pointer Out-of-Range Indicator
CAS Changed Status Indicator (only in CAS mode)
Overall SDT Cell Counter Rollover
Data RX_SAR Cell Arrival Indicator
Data RX_SAR Non-CBR Data Cell Buffer Overrun Alarm
Data RX_SAR Buffer Half Full Indicator
Data Cell Counter Rollover
Per-port Cut VC Alarm
Per-port Late Cell Arrival Alarm
Per-port Simple Underrun Channel Indicator - status field indicates which channel of the TDM port last
experienced a simple underrun (SDT mode only)
Per-port Permanent Underrun Channel Indicator - status field indicates whether or not a particular channel
of the TDM port has experienced a permanent underrun (SDT mode only)
UTOPIA Incoming Cell Counter
Incoming Parity Mismatch Counter
Statistics
TDM Module
UTOPIA Module
SDT RX_SAR Module
Data RX_SAR Module
UDT Reassembly-Side Timeout Module
Zarlink Semiconductor Inc.
MT90520
17
Data Sheet