CD00237391 datasheet(113/177 Pages) STMICROELECTRONICS

tên linh kiện	CD00237391

Giải thích chi tiết về linh kiện	ARM-based 32-bit MCU, 150DMIPs, up to 1 MB Flash/1284KB RAM

PDF	177 Pages

Scroll/Zoom	100%

nhà sản xuất	STMICROELECTRONICS [STMicroelectronics]

Trang chủ	http://www.st.com

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113 / 177 page

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

td(MDIO)

MDIO write data valid time

tsu(MDIO) Read data setup time

th(MDIO)

Read data hold time

Table 62.

Dynamics characteristics: Ethernet MAC signals for RMII

Symbol

Rating

Min

Typ

Max

Unit

tsu(RXD)

Receive data setup time

tih(RXD)

Receive data hold time

1.5

tsu(CRS)

Carrier sense set-up time

tih(CRS)

Carrier sense hold time

td(TXEN)

Transmit enable valid delay time

td(TXD)

Transmit data valid delay time

11.5

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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