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ECLKOUTx

(Output from DSP)

ECLKOUTx

(Input to External Device)

Control Signals (A)

(Output from DSP)

Control Signals

(Input to External Device)

Data Signals (B)

(Output from External Device)

Data Signals (B)

(Input to DSP)

5.2

Recommended Clock and Control Signal Transition Behavior

5.3

Power Supplies

5.3.1

Power-Supply Sequencing

TMS320DM642

Video/Imaging Fixed-Point Digital Signal Processor

SPRS200J – JULY 2002 – REVISED AUGUST 2005

Control signals include data for Writes.

Data signals are generated during Reads from an external device.

Figure 5-4. Board-Level Input/Output Timings

All clocks and control signals must transition between VIH and VIL (or between VIL and VIH) in a monotonic

manner.

For more information regarding TI's power management products and suggested devices to power TI

DSPs, visit www.ti.com/dsppower.

TI DSPs do not require specific power sequencing between the core supply and the I/O supply. However,

systems should be designed to ensure that neither supply is powered up for extended periods of time

(>1 second) if the other supply is below the proper operating voltage.

DM642 Peripheral Information and Electrical Specifications

TMS320DM642 Datasheet(PDF) 74 Page - Texas Instruments