Jumper and DIP Switch Settings
CYW920706WCDEVAL Hardware User Guide Doc. No.: 002-16535 Rev. **
10
Jumper/Switch
Default State
Comment
J3
Shorted
Short this Jumper to supply 3.3V to the IO Domain (VDDIO) of the 0270x. Also use this jumper to
measure the current consumption of the IO Domain.
J9
Shorted
Input of the internal 1.2V LDO, use this jumper to measure current consumption at the input of the
1.2V LDO
J10
Shorted
Input of the internal 2.5V LDO, use this jumper to measure current consumption at the input of the
2.5V LDO
J12
Shorted
Output of the internal 1.2V LDO, use this jumper to measure current consumption at the output of
the 1.2V LDO
J17
Shorted
Supplies power to all the power rails in the 20706, use this jumper to measure current consumption
of the entire 20706 chip.
J26 1 and 2
Shorted
Connects CYW20706 BT_UART_RXD to FTDI TX
J26 3 and 4
Shorted
Connects CYW20706 BT_UART_TXD to FTDI RX
J26 5 and 6
Shorted
Connects CYW20706 BT_UART_CTS to FTDI RTS
J26 7 and 8
Shorted
Connects CYW20706 BT_UART_RTS to FTDI CTS
J29
Open
Short this jumper to connect GPIO P15 to the RX of the second FTDI com port for debugging
purposes
J30
Open
Short this jumper to connect GPIO P15 to VDDIO for battery monitoring applications.
SW2
–
Reset Button
SW3
–
Recovery Button
SW4
3 ON
Power switch positions: 1: OFF, 3: ON
SW5
See
Serial Flash Connections
SW6
–
User button
SW7
See
Authentication IC Connections
Table 4-3. CYW920706WCDEVAL Board Jumper and Switch Settings
shows the CYW920706WCDEVAL board headers.
Header
Description
J18
CYW test header - SPI, UART
J19
CYW test header – GPIO
J20
Arduino shield connection
J21
Arduino shield connection
J22
CYW test header: GPIO, Reset, I
2
S, PWM
J23
Arduino shield connection
J24
Arduino shield connection
J27
10 Pin JTAG connector
Table 4-4. CYW920706WCDEVAL Board Headers