Other Parts Discussed in Thread: DP83869
HI,
DP83869HM datasheet says that Up to 32 PHYs can share a common SMI bus. To distinguish between the PHYs, a 5-bit address is used. During power-up reset, the DP83869HM latches the PHY_ADD configuration pins to determine its address.
As per Table 11 ( PHY Strap Table), we can get 4 address bit ( PHY_ADD[3:0] ). By this address bits, we can make only 16 different PHY address(i.e 0000 to 1111).
Then How possible to connect 32 PHYs on SMI bus?