Dai Interface - Analog Devices ADSP-21369 EZ-KIT Lite Manual

System Architecture

DAI Interface

The digital application interface (DAI) pins are connected to the signal
routing unit (SRU) of the processor. The SRU is a flexible routing system,
providing a large system of signal flows within the processor. In general,
the SRU allows to route the DAI pins to different internal peripherals in
various combinations.
The DAI pins are connected to the AD1835A audio codec, a 26-pin
header, two RCA connectors, audio oscillator output, an external phase
lock loop (PLL) circuit, two LEDs, and two push buttons.
trates the EZ-KIT Lite's connections to the DAI.
DAI20 (SFS45)
DAI19 (SCLK45)
DAI18 (SD5B)
DAI17 (SD5A)
DAI16 (SD4B)
DAI15 (SD4A)
DAI14 (SFS23)
DAI13 (SCLK23)
DAI12 (SD3B)
DAI11 (SD3A)
DAI10 (SD2B)
DAI9 (SD2A)
DAI8 (SFS1)
DAI7 (SCLK1)
DAI5 (SD1A)
DAI6 (SD1B)
DAI4 (SFS0)
DAI3 (SCLK0)
DAI2 (SD0B)
DAI1 (SD0A)
DSP
Figure 2-2. DAI Connections Block Diagram
2-4
www.BDTIC.com/ADI
PB_4
PB_3
SPDIF IN
AUDIO OSC
LED7
LED6
ELVIS_TRIG
PLLMCLK IN
PLLMCLK OUT
SPDIF OUT
ADSP-21369 EZ-KIT Lite Evaluation System Manual
Figure 2-2
DAC_LRCLK DAC1
DAC_BCLK DAC2
DAC_SDATA1 DAC3
DAC_SDATA2 DAC4
DAC_SDATA3
DAC_SDATA4
AD1835
ADC_LRCLK ADC
ADC_BCLK
ADC_SDATA1
MCLK
12.288MHz
illus-
4x2
RCA
Phono
Jack
OUT
Head-
phone
Jack
1X2
RCA
Phono
Jack IN