Using ADSP-21479 EZ-Board
serial ports. Connecting the codec in this manner enables a flexible audio
sample rate and allows the processor to run at the maximum core
frequency.
The audio interface also has a 3.5 mm connector ( J8 ) for headphones. The
headphones share the output with the external DAC5 and DAC6 circuits of
the analog audio interface. Switch SW23 must be enabled for the head-
phones. A volume control potentiometer ( R493 ) is used to increase or
decrease the headphone’s volume. For more information, see “Headphone
Enable Switch (SW23)” on page 2-18.
Example programs are included in the EZ-Board installation directory to
demonstrate how to configure and use the board’s analog audio interface.
The DAI and DPI pins going to the AD1939 device can be disabled, then
used again on the expansion II interface. Refer to “DAI Interface” on
page 2-3 and “DPI Interface” on page 2-4 for more information about the
DAI and DPI switches.
UART Interface
The ADSP-21479 processor features a built-in universal asynchronous
receiver and transmitter (UART). The UART interface supports full
RS-232 functionality via the Analog Devices 3.3V ADM3202 line driver
and receiver ( U8 ). The UART signals are available on the EZ-Board via a
DIP switch ( SW14 ). The UART signals routed through the DIP switch can
be disconnected from the respective DPI interface and used on the expan-
sion II interface. The following DPI pins are used for the RS-232
interface.
? DPI pin 9 ( DPI_P9 ) as UART_TX
? DPI pin 10 ( DPI_P10 ) as UART_RX
ADSP-21479 EZ-Board Evaluation System Manual
1-17
相关PDF资料
ADZS-21489-EZLITE KIT EVAL EZ BOARD ADSP-2148X
ADZS-218X-ICE-2.5V EMULATOR SRL FOR ADDS-218X-ICE
ADZS-BF506F-EZLITE KIT EVAL EZLITE ADSP-BF506F
ADZS-BF518F-EZLITE KIT EZ LITE BF512F/14F/16F/18F
ADZS-BF527-EZLITE BOARD EVAL ADSP-BF527
ADZS-BF533-EZLITE KIT W/BOARD EVAL FOR ADSP-BF533
ADZS-BF538F-EZLITE BOARD EVAL FOR ADSP-BF538
ADZS-BF561-EZLITE BOARD EVAL ADSP-BF561
相关代理商/技术参数
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ADZS-21489-EZBRD 制造商:Analog Devices 功能描述:EZ BOARD SUPPORTING SHARC 21489
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ADZS-2189M-EZLITE 功能描述:开发板和工具包 - 其他处理器 ADZS-2189M-EZLITE RoHS:否 制造商:Freescale Semiconductor 产品:Development Systems 工具用于评估:P3041 核心:e500mc 接口类型:I2C, SPI, USB 工作电源电压:
ADZS-218X-ICE-2.5V 功能描述:EMULATOR SRL FOR ADDS-218X-ICE RoHS:是 类别:编程器,开发系统 >> 内电路编程器、仿真器以及调试器 系列:EZ-ICE® 产品变化通告:Development Systems Discontinuation 19/Jul/2010 标准包装:1 系列:* 类型:* 适用于相关产品:* 所含物品:*
ADZS22105 功能描述:RELAY GEN PURPOSE SPST 90A 5V 制造商:panasonic electric works 系列:ADZS 包装:托盘 零件状态:在售 继电器类型:通用 线圈类型:锁存,双线圈 线圈电流:600mA 线圈电压:5VDC 触头外形:SPST-NO(1 A 型) 额定接触(电流):90A 开关电压:276VAC - 最大 导通电压(最大值):3.5 VDC 关闭电压(最小值):- 工作时间:20ms 释放时间:20ms 特性:- 安装类型:底座安装 端子类型:螺丝端子 工作温度:-40°C ~ 85°C 触头材料:银锡氧化物(AgSnO) 线圈功率:3 W 线圈电阻:8.3 Ohms 标准包装:20
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