MPC8270VRI データシートの表示（PDF） - Freescale Semiconductor

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MPC8270VRI

PowerQUICC II Family Hardware Specifications

Freescale Semiconductor 

AC Electrical Characteristics

This figure shows the FCC external clock.

Serial ClKin

FCC input signals

sp16b

FCC output signals

Note: When GFMR[TCI] = 0

sp17b

sp36b/sp37b

FCC output signals

Note: When GFMR[TCI] = 1

Figure 4. FCC External Clock Diagram

This figure shows the SCC/SMC/SPI/I2C external clock.

sp36b/sp37b

Serial CLKin

SCC/SMC/SPI/I2C input signals

(See note)

SCC/SMC/SPI/I2C output signals

(See note)

sp18b

sp19b

sp38b/sp39b

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.

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

MPC8280 PowerQUICC II Family Hardware Specifications, Rev. 2

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Freescale Semiconductor

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