Datasheet

System Architecture
2-4 ADSP-21479 EZ-Board Evaluation System Manual
To use the DAI on the expansion II interface, disable any signal driving a
DAI pin with the associated switch. The pinout of the expansion connec-
tors can be found in “ADSP-21479 EZ-Board Schematic” on page B-1.
DPI Interface
The digital peripheral interface (DPI) pins are connected to a second sig-
nal routing unit of the processor (SRU2). The SRU2 unit, similar to the
SRU, is a flexible routing system providing a large system of signal flows
within the processor. The SRU2 allows you to route the DPI pins to dif-
ferent internal peripherals in various combinations.
The DPI connects various peripherals on the EZ-Board. Table 2-2 shows
the DPI pin names, associated peripheral and net names, switch designa-
DAI_P13 AD1939 DBCLK SW2.5 OFF
DAI_P14 AD1939 DLRCLK SW2.6 OFF
DAI_P15 LEDs LED6 SW2.7 ON
DAI_P16 LEDs LED7 SW2.8 ON
DAI_P17 LEDs LED8 SW7.1 ON
DAI_P18 S/PDIF SPDIF_IN SW7.2 ON
DAI_P19 Push buttons PB3 SW7.3 ON
DAI_P20 Push buttons PB4 SW7.4 ON
Table 2-1. DAI Connections (Cont’d)
DAI Pin Peripheral Peripheral Net Connected via
Switch
Switch Setting
(Default)