STM32F407IGH6 Datasheet, PDF (128/185 Pages) STMicroelectronics – ARM Cortex-M4 32b MCU+FPU, 210DMIPS, up to 1MB Flash/192+4KB RAM, USB OTG HS/FS, Ethernet, 17 TIMs, 3 ADCs, 15 comm. interfaces & camera

Electrical characteristics
STM32F405xx, STM32F407xx
Table 65. Dynamic characteristics: Ethernet MAC signals for RMII
Symbol
Rating
Min
Typ
Max
Unit
t_su(RXD)
t_ih(RXD)
t_su(CRS)
t_ih(CRS)
t_d(TXEN)
t_d(TXD)
Receive data setup time
Receive data hold time
Carrier sense set-up time
Carrier sense hold time
Transmit enable valid delay time
Transmit data valid delay time
2
-
-
ns
1
-
-
ns
0.5
-
-
ns
2
-
-
ns
8
9.5
11
ns
8.5
10
11.5
ns
Table 66 gives the list of Ethernet MAC signals for MII and Figure 48 shows the
corresponding timing diagram.
Figure 49. Ethernet MII timing diagram
MII_RX_CLK
t_su(RXD)
t_su(ER)
MII_RXD[3:0] ^tsu(DV)
MII_RX_DV
MII_RX_ER
t_ih(RXD)
t_ih(ER)
t_ih(DV)
MII_TX_CLK
MII_TX_EN
MII_TXD[3:0]
t_d(TXEN)
t_d(TXD)
ai15668
Table 66. Dynamic characteristics: Ethernet MAC signals for MII⁽¹⁾
Symbol
Parameter
Min
Typ
Max
t_su(RXD) Receive data setup time
9
-
t_ih(RXD)
Receive data hold time
10
-
t_su(DV)
Data valid setup time
9
-
t_ih(DV)
Data valid hold time
8
-
t_su(ER)
Error setup time
6
-
t_ih(ER)
Error hold time
8
-
t_d(TXEN) Transmit enable valid delay time
0
10
14
t_d(TXD)
Transmit data valid delay time
0
10
15
1. Data based on characterization results, not tested in production.
Unit
ns
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