KSZ8041RNL REF_CLK outputting 25MHz
We have a design using the KSZ8041RNL, using an external 25MHz oscillator on pin 9 as per datasheet. However, we get 25MHz out of pin 19 (REF_CLK), and believe it should be 50MHz. We've been through the datasheet and design checklist, and all points look ok.
We have it set at PHY Add: 00011. and CONFIG[2:0] 001 = RMII.
Has anyone seen this before? Or have any ideas? Any suggestions would be gratefully received.