ADSP-21479 EZ-Board Evaluation System Manual
2-3
ADSP-21479 EZ-Board Hardware Reference
The input clock is 16.625 MHz. The default boot mode of the processor
is external parallel flash boot. See
“Boot Mode Select Switch (SW4)” on
for information on how to change the default boot mode.
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. The SRU
allows you to route the DAI pins to different internal peripherals in vari-
ous combinations.
The DAI connects various peripherals on the EZ-Board.
shows
the DAI pin names, associated peripheral and net names, switch designa-
tors through which the pins are connected to the peripherals, and default
switch settings.
Table 2-1. DAI Connections
DAI Pin
Peripheral
Peripheral Net
Connected via
Switch
Switch Setting
(Default)
DAI_P1
S/PDIF
SPDIF_OUT
SW1.1
ON
DAI_P2
AD1939
SOFT_RESET
SW1.2
ON
DAI_P3
LEDs
LED4
SW1.3
ON
DAI_P4
LEDs
LED5
SW1.4
ON
DAI_P5
AD1939
ASDATA1
SW1.5
ON
DAI_P6
AD1939
ASDATA2
SW1.6
ON
DAI_P7
AD1939
ABCLK
SW1.7
ON
DAI_P8
AD1939
ALRCLK
SW1.8
ON
DAI_P9
AD1939
DSDATA4
SW2.1
ON
DAI_P10
AD1939
DSDATA3
SW2.2
ON
DAI_P11
AD1939
DSDATA2
SW2.3
ON
DAI_P12
AD1939
DSDATA1
SW2.4
ON
Содержание ADSP-21479 EZ-Board
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