KSZ8873FLLI Micrel Inc, KSZ8873FLLI Datasheet - Page 43
KSZ8873FLLI
Manufacturer Part Number
KSZ8873FLLI
Description
IC ETHERNET SWITCH 3PORT 64LQFP
Manufacturer
Micrel Inc
Specifications of KSZ8873FLLI
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
Supplier Unconfirmed
Other names
576-3632
KSZ8873FLLI
KSZ8873FLLI
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
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