KSZ8851SNL-BBE-EVAL Micrel Inc, KSZ8851SNL-BBE-EVAL Datasheet - Page 70

BOARD EVAL MAC/PHY FOR KSZ8851

KSZ8851SNL-BBE-EVAL

Manufacturer Part Number
KSZ8851SNL-BBE-EVAL
Description
BOARD EVAL MAC/PHY FOR KSZ8851
Manufacturer
Micrel Inc
Series
LinkMD®r

Specifications of KSZ8851SNL-BBE-EVAL

Design Resources
BeagleBoard Zippy2
Main Purpose
Interface, Ethernet Controller (PHY and MAC)
Embedded
No
Utilized Ic / Part
KSZ8851SNL
Primary Attributes
1 Port, 100BASE-TX/10BASE-T
Secondary Attributes
SPI Interface, LinkMD Cable Diagnostics
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
576-3602
KSZ8851SNL-BBE-EVL
ZIPPY2

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
KSZ8851SNL-BBE-EVAL
Manufacturer:
Micrel Inc
Quantity:
135
Additional MIB Information
August 2009
Micrel, Inc.
Offset
0x1C
0x1D
0x1E
0x1F
Example:
1. MIB Counter Read (read port 1 “Rx64Octets” counter at indirect address offset 0x0E)
In the heaviest condition, the byte counter will overflow in 2 minutes. It is recommended that the software read all
the counters at least every 30 seconds.
MIB counters are designed as “read clear”. That is, these counters will be cleared after they are read.
Counter Name
TxTotalCollision
TxExcessiveCollision
TxSingleCollision
TxMultipleCollision
Then
Write to reg. IACR (0xC8) with 0x1C0E (set indirect address and trigger a read MIB counters operation)
Read reg. IADHR (MIB counter value 31-16)
Read reg. IADLR (MIB counter value 15-0)
Table 14. Port 1 MIB Counters Indirect Memory Offsets
Description
Tx total collision, half duplex only
A count of frames for which Tx fails due to excessive collisions
Successfully Tx frames on a port for which Tx is inhibited by exactly one collision
Successfully Tx frames on a port for which Tx is inhibited by more than one collision
70
KSZ8851SNL/SNLI
M9999-083109-2.0

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