KSZ8893FQL Datasheet, PDF (114/117 Pages) Micrel Semiconductor – Single-Chip 3-Port Switch with Fiber Support

Micrel, Inc.
KSZ8893FQL
Reset Circuit
The reset circuit in Figure 29 is recommended for powering up the KSZ8893FQL if reset is triggered only by the power
supply.
Figure 29. Recommended Reset Circuit
The reset circuit in Figure 30 is recommended for applications where reset is driven by another device (e.g., CPU, FPGA,
etc),. At power-on-reset, R, C and D1 provide the necessary ramp rise time to reset the KSZ8893FQL device. The
RST_OUT_n from CPU/FPGA provides the warm reset after power up.
Figure 30. Recommended Reset Circuit for interfacing with CPU/FPGA Reset Output
October 2007
114
M9999-101607-1.3