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STM32F205RB Scheda tecnica(PDF) 119 Page - STMicroelectronics

Il numero della parte STM32F205RB
Spiegazioni elettronici  ARM-based 32-bit MCU, 150DMIPs, up to 1 MB Flash/1284KB RAM
PDF  178 Pages
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Produttore elettronici  STMICROELECTRONICS [STMicroelectronics]
Homepage  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STM32F205RB Scheda tecnica(HTML) 119 Page - STMicroelectronics

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STM32F20xxx
Electrical characteristics
177
Figure 48. Ethernet SMI timing diagram
Table 64 gives the list of Ethernet MAC signals for the RMII and Figure 49 shows the
corresponding timing diagram.
Figure 49. Ethernet RMII timing diagram
Table 63. Dynamics characteristics: Ethernet MAC signals for SMI
Symbol
Rating
Min
Typ
Max
Unit
tMDC
MDC cycle time (2.38 MHz)
411
420
425
ns
td(MDIO) MDIO write data valid time
6
10
13
ns
tsu(MDIO) Read data setup time
12
-
-
ns
th(MDIO) Read data hold time
0
-
-
ns
Table 64. Dynamics characteristics: Ethernet MAC signals for RMII
Symbol
Rating
Min
Typ
Max
Unit
tsu(RXD)
Receive data setup time
1
-
-
ns
tih(RXD)
Receive data hold time
1.5
-
-
tsu(CRS)
Carrier sense set-up time
0
-
-
tih(CRS)
Carrier sense hold time
2
-
-
td(TXEN)
Transmit enable valid delay time
9
11
13
td(TXD)
Transmit data valid delay time
9
11.5
14
ETH_MDC
ETH_MDIO(O)
ETH_MDIO(I)
tMDC
td(MDIO)
tsu(MDIO)
th(MDIO)
ai15666d
RMII_REF_CLK
RMII_TX_EN
RMII_TXD[1:0]
RMII_RXD[1:0]
RMII_CRS_DV
td(TXEN)
td(TXD)
tsu(RXD)
tsu(CRS)
tih(RXD)
tih(CRS)
ai15667



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