SLAS366 datasheet(26/58 Pages) TI2

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3–14

...

15 14

1 0

One SCLK

Data Frame Control Frame

Hi-Z

Turbo SCLK

DIN / DOUT

Sampling Period

Data Frame Control Frame

Data Frame

Control Frame

Data Frame

Hi-Z

Stand-Alone Case:

Cascade Case (Master + 4 Slaves):

...

15 14

1 0

One SCLK

Data Frame

Hi-Z

DIN / DOUT

Data Frame

Stand-Alone Case:

Cascade Case (Master + 4 Slaves):

Turbo SCLK

DIN / DOUT

Sampling Period

Data Frame

Hi-Z

Data Frame

TURBO PROGRAMMING MODE

TURBO CONTINUOUS DATA TRANSFER MODE

Sampling Period

Control Frame

Hi-Z

...

1 0

Hi-Z

Turbo SCLK

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NOTE: SCLK is not drawn to scale.

Figure 3–17. Timing Diagram for Turbo Operation

3.9

Control Register Programming

The TLV320AIC14 contains six control registers that are used to program available modes of operation. All register

programming occurs during the control frame through DIN. New configuration takes effect after a delay of one frame

sync FS except the software reset, which happens after 6 MCLKs from the falling edge of the next frame sync FS.

The TLV320AIC14 is defaulted to the programming mode upon power up. Set bit 6 in control register 1 to switch to

continuous data transfer mode. If the 15+1 data format of DIN has been selected, the LSB of the DIN to 1 to switch

from continuous data transfer mode to programming set mode. Otherwise, either the device needs to be reset or the

host port writes 0 to bit D6 of control register 1 during the continuous data transfer mode to switch back to the

programming mode.

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