MPC5644B datasheet(84/114 Pages) FREESCALE

부품명	MPC5644B

상세설명	Microcontroller 64 KB on-chip data flash memory to support EEPROM emulation

PDF	114 Pages

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제조업체	FREESCALE [Freescale Semiconductor, Inc]

홈페이지	http://www.freescale.com

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84 / 114 page

MPC5646C Microcontroller Data Sheet, Rev. 3

Preliminary—Subject to Change Without Notice

Freescale Semiconductor

Figure 22. MII transmit signal timing diagram

4.18.3

MII Async Inputs Signal Timing (CRS and COL)

Figure 23. MII async inputs timing diagram

4.18.4

MII Serial Management Channel Timing (MDIO and MDC)

The FEC functions correctly with a maximum MDC frequency of 2.5 MHz.

Table 46. MII Async Inputs Signal Timing1

1 Output pads configured with SRE = 0b11.

Spec

Characteristic

Min

Max

Unit

CRS, COL minimum

pulse width

1.5

—

TX_CLK period

Table 47. MII serial management channel timing1

Spec

Characteristic

Min

Max

Unit

M10

MDC falling edge to

MDIO output invalid

(minimum

propagation delay)

0—

M11

MDC falling edge to

MDIO output valid

(max prop delay)

—25

M12

MDIO (input) to MDC

rising edge setup

—

M13

MDIO (input) to MDC

rising edge hold

0—

TX_CLK (input)

TXD[3:0] (outputs)

TX_EN

TX_ER

CRS, COL

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