Analog Devices EZ-KIT Lite ADSP-BF533, Руководство пользователя

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System Architecture
3-4 ADSP-BF533 EZ-KIT Lite Evaluation System Manual
SPORT0 Audio Interface
The
SPORT0
interface is connected to the AD1836 audio codec, the
SPORT connector (
P3
), and the expansion interface. The AD1836 codec
uses both the primary and secondary data transmit and receive pins to
input and output data from the audio input and outputs.
The pinout of the SPORT connector and the expansion interface connec-
tors can be found in Appendix B,
“Schematics” on page B-1 .
SPI Interface
The processor’s Serial Peripheral Interconnect (SPI) interface is connected
to the AD1836 audio codec and the expansion interface. The SPI connec-
tion to the AD1836 is used to access the control registers of the device.
The
PF4
flag of the processor is used as the devices select for the SPI port.
Programmable Flags
The processor has 15 programmable flag pins (PFs). The pins have multi-
ple functions, depending on the setup of the processor.
Table 3-1 shows
how the programmable flag pins are used on the EZ-KIT Lite.
Table 3-1. Programmable Flag Connections
DSP PF Pin Other DSP Function EZ-KIT Function
PF0
Serial clock for programming ADV7171 and
ADV7183
PF1
Serial data for programming ADV7171 and
ADV7183
PF2
ADV7183
~OE
PF3 FS3
ADV7183 Field Pin. See “Video Configuration
Switch (SW3)” on page 3-11 .
PF4
AD1836 SPI Select