DAC1221 datasheet(13/17 Pages) TI2

13 / 17 page

DAC1221

OUT MSB

OUT0

SDIO is an input

SDIO is an output

IN7

IN0

SCLK

SDIO

Start

Writing

Start

Reading

External device

generates 8

serial clock cycles

and transmits

instruction register

data via SDIO

CS taken HIGH

for t

15 periods

minimum

(or CS tied LOW)

External device

generates n

serial clock cycles

and transmits

specified

via SDIO

state

instructions?

End

HIGH

Yes

LOW

Is next

instruction

a read?

Yes

state

From Read

flowchart

HIGH

LOW

To Read

flowchart

External device

generates 8 serial

clock cycles and

transmits instruction

via SDIO

SDIO input to

output transition

state

instructions?

End

HIGH

Yes

LOW

Is next

instruction

a Write?

Yes

state

To Write

flowchart

HIGH

LOW

To Write

flowchart

External device

generates n serial

clock cycles and

receives specified

SDIO transitions to

tri-state condition

CS taken HIGH

for t

15 periods

minimum

(or CS tied LOW)

FIGURE 9. SDIO Input to Output Transition Timing.

FIGURE 10. Flowchart for Writing and Reading Register Data.

DAC1221 Datasheet(PDF) 13 Page - Texas Instruments

DAC1221 Datasheet(HTML) 13 Page - Texas Instruments

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17

Datasheet Download

Link URL