KSZ8895MLU_11 Datasheet, PDF (108/110 Pages) Micrel Semiconductor – Integrated 5-Port 10/100 Managed Switch

Micrel, Inc.
KSZ8895MLU
Reset Circuit Diagram
Micrel recommends the following discrete reset circuit as shown in Figure 25 when powering up the KS8895MQ device.
For the application where the reset circuit signal comes from another device (e.g., CPU, FPGA, etc), we recommend the
reset circuit as shown in Figure 26.
Figure 25. Recommended Reset Circuit
Figure 26. Recommended Circuit for Interfacing with CPU/FPGA Reset
At power-on-reset, R, C, and D1 provide the necessary ramp rise time to reset the Micrel device. The reset out
RST_OUT_n from CPU/FPGA provides the warm reset after power up.
October 2011
108
M9999-100311-1.1