MPC8270ZUE Просмотр технического описания (PDF) - Freescale Semiconductor

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MPC8270ZUE

PowerQUICC II Family Hardware Specifications

Freescale Semiconductor 

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

AC Electrical Characteristics

BRG_OUT

SCC/SMC/SPI/I2C input signals

(See note)

sp18a

sp19a

sp38a/sp39a

SCC/SMC/SPI/I2C output signals

(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.

Figure 6. SCC/SMC/SPI/I2C Internal Clock Diagram

This figure shows TDM input and output signals.

Serial CLKin

TDM input signals

TDM output signals

sp20

sp21

sp40/sp41

Note: There are four possible TDM timing conditions:

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 7. TDM Signal Diagram

MPC8280 PowerQUICC II Family Hardware Specifications, Rev. 2

Freescale Semiconductor

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