Datasheet

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2.2 Default Configuration and Connections
2.2.1 USB-MODEVM
Table 1 provides a list of the SW2 settings on the USB-MODEVM. For use with the
TLV320ADC3101EVM, SW-2 positions 1, 2, 3, 4, 5, 6, and 7 must be set to ON, whereas SW-2.8 must be
set to OFF. If the TLV320ADC3101EVM is to be used with an external audio interface, SW2.4 and SW2.5
must be set to OFF. This interface must be connected as explained in Section 2.4.
Table 1. USB-MODEVM SW2 Settings
SW-2 Switch Number Label Switch Description
1 A0 USB-MODEVM EEPROM I
2
C Address A0
ON: A0 = 0
OFF: A0 = 1
2 A1 USB-MODEVM EEPROM I
2
C Address A1
ON: A1 = 0
OFF: A1 = 1
3 A2 USB-MODEVM EEPROM I
2
C Address A2
ON: A2 = 0
OFF: A2 = 1
4 USB I
2
S I
2
S Bus Source Selection
ON: I
2
S bus connects to TAS1020.
OFF: I
2
S Bus connects to USB-MODEVM J14.
5 USB MCK I
2
S bus MCLK Source Selection
ON: MCLK connects to TAS1020.
OFF: MCLK connects to USB-MODEVM J14.
6 USB SPI SPI bus Source Selection
ON: SPI bus connects to TAS1020.
OFF: SPI bus connects to USB-MODEVM J15.
7 USB RST RST Source Selection
ON: EVM reset signal comes from TAS1020.
OFF: EVM reset signal comes from USB-MODEVM J15.
8 EXT MCK External MCLK Selection
ON: MCLK signal is provided from USB-MODEVM J10.
OFF: MCLK signal comes from either selection of SW2-5.
5
SLAU267A–December 2008–Revised October 2012 TLV320ADC3101-K
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