1.
Overview ........................................................................................................................................................ 1
1.1
2.
Power/Reset Pins .......................................................................................................................................... 2
2.1
Power-On/Off Sequence ..................................................................................................................................... 2
2.1.1
2.1.2
2.2
Power Supply Pins .............................................................................................................................................. 5
2.3
Reset Pins ........................................................................................................................................................... 6
3.
Clock Input Pins ............................................................................................................................................. 7
3.1
Pin Functions ...................................................................................................................................................... 7
3.2
3.3
4.
PLL Power Supply Pins ............................................................................................................................... 10
4.1
4.2
5.
GPIO Port Pins ............................................................................................................................................ 12
6.
Gigabit Ethernet PHY Pins .......................................................................................................................... 13
6.1
6.1.1
Circuit Configuration ............................................................................................................................... 13
6.1.2
Recommended Components .................................................................................................................... 14
6.2
6.2.1
6.2.2
Recommended Components .................................................................................................................... 16
6.3
REF_REXT and REF_FILT Pins ..................................................................................................................... 17
6.3.1
6.3.2
Recommended Resistors .......................................................................................................................... 17
6.3.3
6.4
Notes on Board Wiring ..................................................................................................................................... 18
6.5
Unused GbE-PHY ............................................................................................................................................ 20
Contents
Contents-1