Specifications

ESS Technology, Inc. SAM0023-122898 21

ES1869 DATA SHEET

PERIPHERAL INTERFACING

respectively. In addition, set bit 1 of Mixer register 46h high

to enable FDXO as an output when DSP serial mode is

enabled.

The volume of the DSP digital audio playback is controlled

within the DSP by scaling the data.

Serial Data Format

Figure 11 shows the format for serial data used with the DSP serial interface.

Figure 11 16-Bit Data, Positive Sync Pulse

DCLK

FSR

Hi-Z

D15 D14 D13

D12 D1

D15 D14 D13

D12 D1

(MSB)

FSX