KSZ8873MLL AM Micrel Inc, KSZ8873MLL AM Datasheet - Page 43
![IC ETHERNET SWITCH 3PORT 64-LQFP](/photos/6/81/68149/64-lqfp-micrel_sml.jpg)
KSZ8873MLL AM
Manufacturer Part Number
KSZ8873MLL AM
Description
IC ETHERNET SWITCH 3PORT 64-LQFP
Manufacturer
Micrel Inc
Specifications of KSZ8873MLL AM
Controller Type
Ethernet Switch Controller
Interface
MII
Voltage - Supply
1.8V, 2.5V, 3.3V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
64-LQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Current - Supply
-
Lead Free Status / RoHS Status
Not Compliant, Lead free / RoHS Compliant
Other names
576-3633
KSZ8873MLL AM
KSZ8873MLLAM
KSZ8873MLL AM
KSZ8873MLLAM
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Micrel, Inc.
Near-end (Remote) Loopback
Near-end (Remote) loopback is conducted at either PHY port 1 or PHY port 2.of the KSZ8873MLL/FLL/RLL. The
loopback path starts at the PHY port’s receive inputs (RXPx/RXMx), wraps around at the same PHY port’s PMD/PMA,
and ends at the PHY port’s transmit outputs (TXPx/TXMx).
Bit [1] of registers 26 and 42 is used to enable near-end loopback for ports 1 and 2, respectively. Alternatively, the MII
Management register 31, bit [1] can be used to enable near-end loopback.
The near-end loopback paths are illustrated in the following figure.
September 2010
Figure 15. Near-end (Remote) Loopback Path
RXP1 /
RXM 1
RXP2 /
RXM 2
PMD/PMA
PMD/PMA
Switch
Port 1
MAC
MAC
PHY
PCS
PCS
Port 2
PHY
43
TXP2 /
TXM 2
TXP1 /
TXM 1
KSZ8873MLL/FLL/RLL
M9999-092309-1.2
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