MPC862 datasheet(68/88 Pages) FREESCALE

部件名	MPC862

功能描述	PowerQUICC??Family Hardware Specifications

PDF	88 Pages

Scroll/Zoom	100%

制造商	FREESCALE [Freescale Semiconductor, Inc]

网页	http://www.freescale.com

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68 / 88 page

MPC862/857T/857DSL PowerQUICC™ Family Hardware Specifications, Rev. 3

Freescale Semiconductor

UTOPIA AC Electrical Specifications

Figure 70 shows the I2C bus timing.

Figure 70. I2C Bus Timing Diagram

12 UTOPIA AC Electrical Specifications

Table 28 shows the AC electrical specifications for the UTOPIA interface.

Table 28. UTOPIA AC Electrical Specifications

Num

Signal Characteristic

Direction

Min

Max

Unit

UtpClk rise/fall time (Internal clock option)

Output

4 ns

Duty cycle

Frequency

MHz

U1a

UtpClk rise/fall time (external clock option)

Input

4ns

Duty cycle

Frequency

MHz

RxEnb and TxEnb active delay

Output

2 ns

16 ns

UTPB, SOC, Rxclav and Txclav setup time

Input

4 ns

UTPB, SOC, Rxclav and Txclav hold time

Input

1 ns

UTPB, SOC active delay (and PHREQ and PHSEL active

delay in MPHY mode)

Output

2 ns

16 ns

SCL

202

205

203

207

204

208

206

209

211

210

SDA

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