STM32F217ZET6TR 查看數據表（PDF） - STMicroelectronics

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STM32F217ZET6TR

ARM-based 32-bit MCU, 150DMIPs, up to 1 MB Flash/128+4KB RAM, crypto, USB OTG HS/FS, Ethernet, 17 TIMs, 3 ADCs, 15 comm. interfaces & camera

STMicroelectronics 

Application block diagrams

STM32F21xxx

A.6

Ethernet interface solutions

Figure 93. MII mode using a 25 MHz crystal

XTAL

25 MHz

MCU

STM32

Ethernet

MAC 10/100

HCLK(1)

IEEE1588 PTP

Timer

input

TIM2

trigger

Timestamp

comparator

MII_TX_CLK

MII_TX_EN

MII_TXD[3:0]

MII_CRS

MII_COL

MII_RX_CLK

MII_RXD[3:0]

MII_RX_DV

MII_RX_ER

MDIO

MDC

PPS_OUT(2)

Ethernet

PHY 10/100

MII

= 15 pins

MII + MDC

= 17 pins

OSC

PLL

HCLK

MCO1/MCO2 PHY_CLK 25 MHz XT1

1. fHCLK must be greater than 25 MHz.

2. Pulse per second when using IEEE1588 PTP optional signal.

Figure 94. RMII with a 50 MHz oscillator

STM32

MCU

HCLK(1)

Ethernet

MAC 10/100

IEEE1588 PTP

Timer

input

TIM2

trigger

Timestamp

comparator

RMII_TX_EN

RMII_TXD[1:0]

RMII_RXD[1:0]

RMII_CRX_DV

RMII_REF_CLK

MDIO

MDC

MS19968V1

Ethernet

PHY 10/100

RMII

= 7 pins

RMII + MDC

= 9 pins

XTAL

/2 or /20

2.5 or 25 MHz synchronous 50 MHz

OSC

PLL

HCLK

OSC

50 MHz

1. fHCLK must be greater than 25 MHz.

50MHz XT1

50 MHz

MS19971V1

160/173

Doc ID 17050 Rev 8

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