KS8893MQL Micrel Inc, KS8893MQL Datasheet - Page 55
KS8893MQL
Manufacturer Part Number
KS8893MQL
Description
IC MANAGED SWITCH 10/100 128PQFP
Manufacturer
Micrel Inc
Specifications of KS8893MQL
Applications
*
Mounting Type
Surface Mount
Package / Case
128-MQFP, 128-PQFP
Number Of Primary Switch Ports
3
Internal Memory Buffer Size
32
Operating Supply Voltage (typ)
3.3V
Fiber Support
Yes
Integrated Led Drivers
Yes
Power Supply Type
Analog/Digital
Package Type
PQFP
Data Rate (typ)
10/100Mbps
Vlan Support
Yes
Operating Temperature (max)
70C
Operating Temperature (min)
0C
Pin Count
128
Mounting
Surface Mount
Jtag Support
No
Operating Supply Voltage (max)
3.5V
Operating Supply Voltage (min)
3.1V
Operating Temperature Classification
Commercial
Data Rate
100Mbps
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
576-1457
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Near-end (Remote) Loopback
Near-end (Remote) loopback is conducted at either PHY port 1 or PHY port 2.of the KSZ8893MQL/MBL. 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.
December 2007
RXP1 /
RXM 1
RXP2 /
RXM2
Figure 13. Near-end (Remote) Loopback Path
PMD/PMA
PMD/PMA
Switch
Port 1
MAC
MAC
PHY
PCS
PCS
Port 2
PHY
55
TXP2 /
TXM2
TXP1 /
TXM 1
M9999-121007-1.5