Datasheet

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
page 2-10 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. Table 2-1 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