TWR-K60N512-KEIL Freescale Semiconductor, TWR-K60N512-KEIL Datasheet - Page 120

• Manufacturer Part Number: TWR-K60N512-KEIL
• Description: K60N512 Keil Tower Kit
• Manufacturer: Freescale Semiconductor
• Series: Kinetisr
• Type: MCUr

Specifications of TWR-K60N512-KEIL

• Rohs Compliant: YES
• Contents: 4 Boards, Documentation, DVD
• Peak Reflow Compatible (260 C): Yes
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• For Use With/related Products: Freescale Tower System, K60N512

PCB Design Recommendations
120
• Series termination guidelines must be placed as close as possible to the origin of the
• When working in RMII mode, a 50 MHz external reference must be connected to the
signal. This must be followed by PHY and ENET outputs.
EXTAL pin. Then the MII/RMII interface is able to communicate with the PHY,
which uses the same clock. If your PHY clock presents an output delay (compared to
the input clock), this delay must be properly matched (frequency and phase) to the
EXTAL pin, or data corruption occurs. Some PHYs output a 50 MHz clock which
must be used for the MCU EXTAL pin. Follow your PHY specifications and
considerations for the RMII mode.
Kinetis Quick Reference User Guide, Rev. 0, 11/2010
Freescale Semiconductor