zl50411 Zarlink Semiconductor, zl50411 Datasheet - Page 59

• Manufacturer Part Number: zl50411
• Description: Managed 9-port Fast Ethernet Switch With Private Vlan
• Manufacturer: Zarlink Semiconductor

Use ZL50411 counter “Frames Received”, C[6].
Note: max. frame size may be BUF_LIMIT, if enabled on this port.
11.4.1.4
Counts the number of good frames received and forwarded with broadcast address. Does not include
non-broadcast multicast frames.
Use ZL50411 counter “Broadcast Frames Received”, C[11].
11.4.1.5
Counts the number of good frames received and forwarded with multicast address. Does not include broadcast
frames.
Use ZL50411 counter “Multicast Frames Received”, C[10].
Note: this counter includes broadcast frames received.
11.4.1.6
Counts number of frames received with FCS or alignment errors.
Use ZL50411 counters “CRC”, C[23], and “Alignment Error”, C[21].
Note: when the “Alignment Error” counter, C[21], is incremented, the ZL50411 also increments the “CRC” counter,
C[23], thus, the CRC counter can be used for this statistic.
11.4.1.7
Counts number of frames received with size less than 64 bytes.
Use ZL50411 counter “Undersize Frames”, C[22].
BroadcastPkts
MulticastPkts
CRCAlignErrors
UndersizePkts
Frame size:
Framing error and/or FCS error
No collisions
Frame size:
Framing error: don’t care
FCS error: don’t care
No collisions
Zarlink Semiconductor Inc.
ZL50411
59
Min. Frame Size
> 64 bytes,
Min. Frame Size
n/a
Max. Frame Size
< 1518 bytes
(< 1522 bytes, if
VLAN tagged)
Max. Frame Size
< 64 bytes
Data Sheet