MPC8271VRM datasheet(17/60 Pages) FREESCALE

部件名	MPC8271VRM

功能描述	PowerQUICC II??Family Hardware Specifications

PDF	60 Pages

Scroll/Zoom	100%

制造商	FREESCALE [Freescale Semiconductor, Inc]

网页	http://www.freescale.com

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17 / 60 page

MPC8272 PowerQUICC II™ Family Hardware Specifications, Rev. 1.5

Freescale Semiconductor

AC Electrical Characteristics

Figure 4 shows the FCC external clock.

Figure 4. FCC External Clock Diagram

Figure 5 shows the SCC/SMC/SPI/I2C external clock.

Figure 5. SCC/SMC/SPI/I2C External Clock Diagram

Serial ClKin

FCC input signals

FCC output signals

Note: When GFMR[TCI] = 1

Note: When GFMR[TCI] = 0

sp16b

sp17b

sp36b/sp37b

Serial CLKin

SCC/SMC/SPI/I2C input signals

SCC/SMC/SPI/I2C output signals

sp18b

sp19b

sp38b/sp39b

(See note)

Note: There are four possible timing conditions for SCC and SPI:

1. Input sampled on the rising edge and output driven on the rising edge (shown).

2. Input sampled on the rising edge and output driven on the falling edge.

3. Input sampled on the falling edge and output driven on the falling edge.

4. Input sampled on the falling edge and output driven on the rising edge.

MPC8271VRM 数据表(PDF) 17 Page - Freescale Semiconductor, Inc