Datasheet

 2017 Microchip Technology Inc. DS60001516A-page 637
SAM9G20
35.5.25 User Input/Output Register
Name:EMAC_USRIO
Access:Read/Write
RMII
When set, this bit enables the RMII operation mode. When reset, it selects the MII mode.
CLKEN
When set, this bit enables the transceiver input clock.
Setting this bit to 0 reduces power consumption when the treasurer is not used.
31 30 29 28 27 26 25 24
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23 22 21 20 19 18 17 16
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15 14 13 12 11 10 9 8
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76543210
––––––CLKENRMII