TCM4300IPZ datasheet(34/69 Pages) TI1

34 / 69 page

3–12

3.11 Switching Characteristics, TCM4300 to DSP Interface (Write Cycle) (see

Figure 3–11)

PARAMETER

ALTERNATE

SYMBOL

MIN

MAX

UNIT

tsu(R/W)

Setup time, read/write DSPRW stable before falling edge of

strobe DSPSTRBL

TRW(SU)

th(R/W)

Hold time, read/write DSPRW stable after rising edge of

strobe DSPSTRBL

TRW(HO)

tsu(CS)

Setup time, chip select stable DSPCSL before falling edge

of strobe DSPSTRBL

TCS(SU)

th(CS)

Hold time, chip select DSPCSL stable after rising edge of

strobe DSPSTRBL

TCS(HO)

tsu(WA)

Setup time, write address DSPA stable before falling edge

of strobe DSPSTRBL

TWA(SU)

th(WA)

Hold time, write address DSPA stable after rising edge of

strobe DSPSTRBL

TWA(HO)

tsu(W)

Setup time, write data stable DSPD before rising edge of

strobe DSPSTRBL

TWD(SU)

th(W)

Hold time, write data stable DSPD after rising edge of

strobe DSPSTRBL

TWD(HO)

tw(WSTB) Pulse duration, write strobe pulse width low on DSPSTRBL

TWR(STB)

90%

10%

tsu(W)

DSPA

DSPSTRBL

DSPD

10%

DSPCSL

DSPRW

th(WA)

tsu(WA)

10%

90%

th(W)

tw(WSTB)

tsu(R / W)

tsu(CS)

th(CS)

th(R / W)

Figure 3–11. TCM4300 to DSP Interface (Write Cycle)

TCM4300IPZ Datasheet(PDF) 34 Page - Texas Instruments

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