Question
ST32F217 with STE100P. How to configure PHY address?
Posted on April 04, 2012 at 07:04
STE100P how to set PHY address?
Hello. Im trying to using an STE100P PHY ethernet chip (with ST32F217 MCU).
In the datasheet for STE100P i see an description for bits 7~3 PAD4:0 in PR20- XMC, XCVR Mode control register : (page 15 of datasheethttp://www.st.com/internet/com/TECHNICAL_RESOURCES/TECHNICAL_LITERATURE/DATASHEET/CD00001918.pdf
)PHY Address [4:0]:The values of the PAD[4:0] pins are latched to this register at power-up/reset. The first PHY address bit transmitted or received is the MSB of the address (bit 4). A station management entity connected to multiple PHY entities must know the appropriate address of each PHY. A PHY address of <00000> that is latched in to the part at power-up/reset will cause the Isolate bit of the PR0 (bit 10, register address 00h) to be set. After power up/reset the only way to enable or disable isolate mode is to set or clear the Isolate bit (bit 10) PR0. After power up/reset writing <00000> to bits [4:0] of this register will not cause the part to enter isolate mode.But i cant see any of PAD[4:0] pins in chip pins (). How can i set PHY address for STE100P? #phy #ste100p