Information

Electrical characteristics STM32F20xxx
120/178 DocID15818 Rev 11
Table 65 gives the list of Ethernet MAC signals for MII and Figure 49 shows the
corresponding timing diagram.
Figure 50. Ethernet MII timing diagram
CAN (controller area network) interface
Refer to Section 6.3.16: I/O port characteristics for more details on the input/output alternate
function characteristics (CANTX and CANRX).
Table 65. Dynamics characteristics: Ethernet MAC signals for MII
Symbol Rating Min Typ Max Unit
t
su(RXD)
Receive data setup time 7.5 - - ns
t
ih(RXD)
Receive data hold time 1 - - ns
t
su(DV)
Data valid setup time 4 - - ns
t
ih(DV)
Data valid hold time 0 - - ns
t
su(ER)
Error setup time 3.5 - - ns
t
ih(ER)
Error hold time 0 - - ns
t
d(TXEN)
Transmit enable valid delay time - 11 14 ns
t
d(TXD)
Transmit data valid delay time - 11 14 ns
MII_RX_CLK
MII_RXD[3:0]
MII_RX_DV
MII_RX_ER
t
d(TXEN)
t
d(TXD)
t
su(RXD)
t
su(ER)
t
su(DV)
t
ih(RXD)
t
ih(ER)
t
ih(DV)
ai15668
MII_TX_CLK
MII_TX_EN
MII_TXD[3:0]