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Part # 897-30-004-90-000000
Description CONN USB RECEPT TYPE B PCB
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Technical Document


DISCLAIMER: The information provided herein is solely for informational purposes. Customers must be aware of the suitability of this product for their application, and consider that variable factors such as Manufacturer, Product Category, Date Codes, Pictures and Descriptions may differ from available inventory.

www.ti.com
Writing Scripts
Here is an example of using an SPI device that requires 16-bit register addresses:
# setup TSC2101 for input and output
# uses SPI16 interface
# this script sets up DAC and ADC at full volume, input from onboard mic
#
# Page 2: Audio control registers
w 10 00 00 00 80 00 00 00 45 31 44 FD 40 00 31 C4
w 13 60 11 20 00 00 00 80 7F 00 C5 FE 31 40 7C 00 02 00 C4 00 00 00 23 10 FE
00 FE 00
Note that blank lines are allowed. However, be sure that the script does not end with a blank line. While
ending with a blank line will not cause the script to fail, the program will execute that line, and therefore,
may prevent the user from seeing data that was written or read back on the previous command.
In this example, the first two bytes of each command are the command word to send to the TSC2101
(0x1000, 0x1360); these are followed by data to write to the device starting at the address specified in the
command word. The second line may wrap in the viewer being used to look like more than one line;
careful examination will show, however, that there is only one carriage return on that line, following the last
00.
Any text editor may be used to write these scripts; Jedit is an editor that is highly recommended for
general usage. For more information, go to: http://www.jedit.org .
Once the script is written, it can be used in the command window by running the program, and then
selecting Open Command File... from the File menu. Locate the script and open it. The script will then be
displayed in the command buffer. The user may also edit the script once it is in the buffer, but saving of
the command buffer is not possible at this time (this feature may be added at a later date).
Once the script is in the command buffer, it may be executed by pressing the Execute Command Buffer
button. If there are breakpoints in the script, the script will execute to that point, and the user will be
presented with a dialog box with a button to press to continue executing the script. When ready to
proceed, push that button and the script will continue.
Here an example of a (partial) script with breakpoints:
# setup AIC33 for input and output
# uses I2C interface
I i2cfast
# reg 07 - codec datapath
w 30 07 8A
r 30 07 1
d 1000
# regs 15/16 - ADC volume, unmute and set to 0dB
w 30 0F 00 00
r 30 0F 2
b
This script writes the value 8A at register 7, then reads it back to verify that the write was good. A delay of
1000ms (one second) is placed after the read to pause the script operation. When the script continues, the
values 00 00 will be written starting at register 0F. This output is verified by reading two bytes, and
pausing the script again, this time with a break. The script would not continue until the user allows it to by
pressing OK in the dialog box that will be displayed due to the break.
54 USB-MODEVM Protocol SLAU218 August 2007
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EVM WARNINGS AND RESTRICTIONS
It is important to operate this EVM within the input voltage range of 3.3 V to 5 V and the output voltage range of 0 V to 5 V.
Exceeding the specified input range may cause unexpected operation and/or irreversible damage to the EVM. If there are questions
concerning the input range, please contact a TI field representative prior to connecting the input power.
Applying loads outside of the specified output range may result in unintended operation and/or possible permanent damage to the EVM.
Please consult the EVM User's Guide prior to connecting any load to the EVM output. If there is uncertainty as to the load specification,
please contact a TI field representative.
During normal operation, some circuit components may have case temperatures greater than 30 ° C. The EVM is designed to operate
properly with certain components above 85 ° C as long as the input and output ranges are maintained. These components include but are
not limited to linear regulators, switching transistors, pass transistors, and current sense resistors. These types of devices can be identified
using the EVM schematic located in the EVM User's Guide. When placing measurement probes near these devices during operation,
please be aware that these devices may be very warm to the touch.
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Copyright © 2007, Texas Instruments Incorporated
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Following are URLs where you can obtain information on other Texas Instruments products and application solutions:
Products Applications
Amplifiers amplifier.ti.com Audio www.ti.com/audio
Data Converters dataconverter.ti.com Automotive www.ti.com/automotive
DSP dsp.ti.com Broadband www.ti.com/broadband
Interface interface.ti.com Digital Control www.ti.com/digitalcontrol
Logic logic.ti.com Military www.ti.com/military
Power Mgmt power.ti.com Optical Networking www.ti.com/opticalnetwork
Microcontrollers microcontroller.ti.com Security www.ti.com/security
RFID www.ti-rfid.com Telephony www.ti.com/telephony
Low Power www.ti.com/lpw Video & Imaging www.ti.com/video
Wireless
Wireless www.ti.com/wireless
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Copyright © 2007, Texas Instruments Incorporated
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