4.5 Kit Modifications

ATmega4809 Xplained Pro has several components that can be used to disconnect I/O pins of the ATmega4809 from connectors and on-board ICs, and to disconnect power signals.

The table and figure below show components to modify connections to the EDBG and power supplies.

Table 4-15. Resistors
DesignatorValueFromToComment
J106Cut-strapJ100 pin 4VCC_TARGETPower header VCC target disconnect
J204Cut-strapPower supplymikroBUS™ 5V0Cut to remove power from the mikroBUS™ header
J207Cut-strapPower supplymikroBUS™ 3V3Cut to remove power from the mikroBUS™ header
F100PTC fuse5V input (USB and External)VCC_P5V0All external 5V power, EDBG USB and external 5V on J100 pin 1
R1080ΩU100 OUTVCC_EDBG_P3V3EDBG power supply
R5040ΩEDBG DGI I2C SDAPC2 TWI0 SDAEDBG DGI I2C interface
R5050ΩEDBG DGI I2C SCLPC3 TWI0 SCL
R5090ΩEDBG TARGET RESETPF6ATmega4809 RESET
R5100ΩEDBG UPDIUPDIUPDI Programming/Debugging signal
R514330ΩEDBG DGI GPIO0PB2EDBG DGI GPIO interface
R515330ΩEDBG DGI GPIO1PB3
R516330ΩEDBG DGI GPIO2PB4
R517330ΩEDBG DGI GPIO3PB5
R5200ΩEDBG DGI SPI SSPF3 GPIOEDBG DGI SPI interface
R5210ΩEDBG DGI SPI SCKPA6 SPI0 SCK
R5220ΩEDBG DGI SPI MOSIPA4 SPI0 MOSI
R523330ΩEDBG DGI SPI MISOPA5 SPI0 MISO
R526330ΩEDBG CDC UART TXPC1 USART1 RxDEDBG CDC interface
R5270ΩEDBG CDC UART RXPC0 USART1 TxD
Figure 4-3. Assembly Drawing Bottom