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.
shows
the DPI pin names, associated peripheral and net names, switch designa-
tors through which the pins are connected to the peripherals, and default
switch settings.
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)
