
Push Buttons and Switches
DAI [1 –8] Enable Switch (SW1)
The DAI [1–8] enable switch ( SW1 ) disconnects DAI pins one through
eight on the processor from the associated peripherals on the EZ-Board
and allows the DAI signals to be used on the expansion II interface. See
Table 2-4 .
Table 2-4. DAI [1–8] Enable Switch (SW1)
SW1 Position
DAI Pin
Peripheral
Peripheral Net
Switch Setting
(Default)
SW1.1
SW1.2
SW1.3
SW1.4
SW1.5
SW1.6
SW1.7
SW1.8
DAI_P1
DAI_P2
DAI_P3
DAI_P4
DAI_P5
DAI_P6
DAI_P7
DAI_P8
S/PDIF
AD1939
LEDs
LEDs
AD1939
AD1939
AD1939
AD1939
SPDIF_OUT
AD1939_SOFT_RESET
LED4
LED5
ASDATA1
ASDATA2
ABCLK
ALRCLK
ON
ON
ON
ON
ON
ON
ON
ON
DAI [9 –16] Enable Switch (SW2)
The DAI [9–16] enable switch ( SW2 ) disconnects DAI pins nine
through 16 on the processor from the associated peripherals on the
EZ-Board and allows the DAI signals to be used on the expansion II inter-
face. See Table 2-5 .
Table 2-5. DAI [9–16] Enable Switch (SW2)
SW2 Position
DAI Pin
Peripheral
Peripheral Net
Switch Setting
(Default)
SW2.1
SW2.2
DAI_P9
DAI_P10
AD1939
AD1939
DSDATA4
DSDATA3
ON
ON
2-8
ADSP-21489 EZ-Board Evaluation System Manual