|
KSZ8051MNLV Datasheet, PDF (1/66 Pages) Micrel Semiconductor – 10Base-T/100Base-TX Physical Layer Transceiver | |||
|
KSZ8051MNLV/KSZ8051RNLV
10Base-T/100Base-TX
Physical Layer Transceiver
Revision 1.0
General Description
The KSZ8051 is an AEC-Q100 standard qualified single-
supply 10Base-T/100Base-TX Ethernet physical-layer
transceiver for automotive applications.
The KSZ8051 is a highly-integrated PHY solution. It reduces
board cost and simplifies board layout by using on-chip
termination resistors for the differential pairs and by
integrating a low-noise regulator to supply the 1.2V core.
The KSZ8051MNLV offers the Media Independent Interface
(MII) and the KSZ8051RNLV offers the Reduced Media
Independent Interface (RMII) for direct connection with
MII/RMII-compliant Ethernet MAC processors and switches.
A 25MHz crystal is used to generate all required clocks,
including the 50MHz RMII reference clock output for the
KSZ8051RNLV.
The KSZ8051 provides diagnostic features to facilitate
system bring-up and debugging in production testing and
in product deployment. Parametric NAND tree support
enables fault detection between KSZ8051 I/Os and the
board. Micrel LinkMD® TDR-based cable diagnostics
identify faulty copper cabling.
The KSZ8051MNLV and KSZ8051RNLV are available in
32-pin, lead-free QFN packages (see âOrdering
Informationâ).
Data sheets and support documentation are available on
Micrelâs website at: www.micrel.com.
Features
⢠Single-chip 10Base-T/100Base-TX IEEE 802.3
compliant Ethernet transceiver
⢠AEC-Q100 qualified for automotive applications
⢠MII interface support (KSZ8051MNLV)
⢠RMII v1.2 Interface support with a 50MHz reference
clock output to MAC, and an option to input a 50MHz
reference clock (KSZ8051RNLV)
⢠Back-to-back mode support for a 100Mbps copper
repeater
⢠MDC/MDIO management interface for PHY register
configuration
⢠Programmable interrupt output
⢠LED outputs for link, activity, and speed status indication
⢠On-chip termination resistors for the differential pairs
⢠Baseline wander correction
⢠HP Auto MDI/MDI-X to reliably detect and correct
straight-through and crossover cable connections with
disable and enable option
⢠Auto-negotiation to automatically select the highest link-
up speed (10/100Mbps) and duplex (half/full)
⢠Power-down and power-saving modes
⢠LinkMD TDR-based cable diagnostics to identify faulty
copper cabling
⢠Parametric NAND Tree support for fault detection
between chip I/Os and the board
Functional Diagram
LinkMD is a registered trademark of Micrel, Inc.
Micrel Inc. ⢠2180 Fortune Drive ⢠San Jose, CA 95131 ⢠USA ⢠tel +1 (408) 944-0800 ⢠fax + 1 (408) 474-1000 ⢠http://www.micrel.com
August 27, 2015
Revision 1.0
|
▷ |