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CD00237391 датащи(PDF) 113 Page - STMicroelectronics

номер детали CD00237391
подробное описание детали  ARM-based 32-bit MCU, 150DMIPs, up to 1 MB Flash/1284KB RAM
PDF  177 Pages
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производитель  STMICROELECTRONICS [STMicroelectronics]
домашняя страница  http://www.st.com
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CD00237391 датащи(HTML) 113 Page - STMicroelectronics

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STM32F20xxx
Electrical characteristics
Doc ID 15818 Rev 9
113/177
Figure 46.
Ethernet SMI timing diagram
Table 62 gives the list of Ethernet MAC signals for the RMII and Figure 47 shows the
corresponding timing diagram.
Figure 47.
Ethernet RMII timing diagram
Table 61.
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 62.
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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