EVM Description and Basics
7
SLAU738 – September 2017
Copyright © 2017, Texas Instruments Incorporated
TLV320AIC3109EVM-K
2.1.2
USB-MODEVM Default Setting
provides a list of the SW2 settings on the USB=MODEVM. For use with the TLV320AIC3109EVM,
set SW-2 positions 1 through 7 to ON, and set SW-2.8 to OFF.
Table 3. 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
provides a list of USB-MODEVM jumpers found on the EVM.
Table 4. USB-MODEVM Jumpers
Jumper
Default Position
Jumper Description
JMP1
Installed
Connects analog and d5-V supplies
JMP2
Open
Connects analog and digital grounds
JMP3
Open
Connects I2C SDA pullup to IOVDD
JMP4
Open
Connects I2C SCL pullup to IOVDD
JMP5
2-3
When connecting 2-3, SS comes from FSX; when connecting 1-2, SS
comes from CNTL
JMP6
1-2
When connecting 1-2, +5 VD comes from USB; when connecting 2-3, +5
VD comes from U2
JMP7
1-2
When connecting 1-2, MCLKI comes from USB; when connecting 2-3,
MCLKI comes from AVSS and DVSS
JMP8
Open
Connects resistor across EXT MCLK