STM32F405VGT6 Datasheet, PDF (127/185 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

STM32F405xx, STM32F407xx
Electrical characteristics
Symbol
Table 63. Ethernet DC electrical characteristics
Parameter
Min.⁽¹⁾
Input level
V_DD Ethernet operating voltage
2.7
1. All the voltages are measured from the local ground potential.
Max.⁽¹⁾
3.6
Unit
V
Table 64 gives the list of Ethernet MAC signals for the SMI (station management interface)
and Figure 47 shows the corresponding timing diagram.
Figure 47. Ethernet SMI timing diagram
ETH_MDC
tMDC
td(MDIO)
ETH_MDIO(O)
ETH_MDIO(I)
tsu(MDIO)
th(MDIO)
MS31384V1
Table 64. Dynamic characteristics: Ehternet MAC signals for SMI⁽¹⁾
Symbol
Parameter
Min
Typ
Max
Unit
t_MDC
MDC cycle time( 2.38 MHz)
411
420
425
T_d(MDIO)
t_su(MDIO)
Write data valid time
Read data setup time
6
10
13
ns
12
-
-
t_h(MDIO) Read data hold time
0
-
-
1. Data based on characterization results, not tested in production.
Table 65 gives the list of Ethernet MAC signals for the RMII and Figure 48 shows the
corresponding timing diagram.
Figure 48. Ethernet RMII timing diagram
RMII_REF_CLK
RMII_TX_EN
RMII_TXD[1:0]
t_su(RXD)
t_su(CRS)
RMII_RXD[1:0]
RMII_CRS_DV
t_d(TXEN)
t_d(TXD)
t_ih(RXD)
t_ih(CRS)
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