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CD00237391 Datasheet, PDF (114/177 Pages) STMicroelectronics – ARM-based 32-bit MCU, 150DMIPs, up to 1 MB Flash/128+4KB RAM
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Electrical characteristics
STM32F20xxx
Table 63 gives the list of Ethernet MAC signals for MII and Figure 47 shows the
corresponding timing diagram.
Figure 48. Ethernet MII timing diagram
MII_RX_CLK
tsu(RXD)
tsu(ER)
tsu(DV)
MII_RXD[3:0]
MII_RX_DV
MII_RX_ER
tih(RXD)
tih(ER)
tih(DV)
MII_TX_CLK
MII_TX_EN
MII_TXD[3:0]
td(TXEN)
td(TXD)
ai15668
Table 63. Dynamics characteristics: Ethernet MAC signals for MII
Symbol
Rating
Min
Typ
Max
Unit
tsu(RXD)
tih(RXD)
tsu(DV)
tih(DV)
tsu(ER)
tih(ER)
td(TXEN)
td(TXD)
Receive data setup time
Receive data hold time
Data valid setup time
Data valid hold time
Error setup time
Error hold time
Transmit enable valid delay time
Transmit data valid delay time
7.5
-
1
-
4
-
0
-
3.5
-
0
-
-
11
-
11
-
ns
-
ns
-
ns
-
ns
-
ns
-
ns
14
ns
14
ns
CAN (controller area network) interface
Refer to Section 5.3.16: I/O port characteristics for more details on the input/output alternate
function characteristics (CANTX and CANRX).
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Doc ID 15818 Rev 9
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