Microchip Technology ATmega4809 Xplained Pro, Manual

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Table 4-1. Extension Header EXT1
EXT1 Pin ATmega4809 Pin Function Shared Functionality
1 [ID] — — Communication line to the ID
chip on an extension board
2 [GND] — — Ground
3 [ADC(+)] PD2 ADC0 AIN2 —
4 [ADC(-)] PD3 ADC0 AIN3 —
5 [GPIO1] PA2 GPIO (USART0 XCK) —
6 [GPIO2] PA3 GPIO (USART0 XDIR) —
7 [PWM(+)] PC4 TCA0 WO4 —
8 [PWM(-)] PC5 TCA0 WO5 —
9 [IRQ/GPIO] PC6 GPIO —
10 [SPI_SS_B/GPIO] PC7 GPIO —
11 [TWI_SDA] PC2 TWI0 SDA EXT2 , EXT3 , mikroBUS
™
,
CryptoAuthentication
™
footprint ,
EDBG DGI
12 [TWI_SCL] PC3 TWI0 SCL EXT2 , EXT3 , mikroBUS
™
,
CryptoAuthentication
™
footprint ,
EDBG DGI
13 [USART_RX] PA1 USART0 RxD —
14 [USART_TX] PA0 USART0 TxD —
15 [SPI_SS_A] PA7 SPI0 SS —
16 [SPI_MOSI] PA4 SPI0 MOSI EXT2 , EXT3 , mikroBUS
™
, EDBG
DGI
17 [SPI_MISO] PA5 SPI0 MISO EXT2 , EXT3 , mikroBUS
™
, EDBG
DGI
18 [SPI_SCK] PA6 SPI0 SCK EXT2 , EXT3 , mikroBUS
™
, EDBG
DGI
19 [GND] — — Ground
20 [VCC] — — Power for extension board
Table 4-2. Extension Header EXT2
EXT2 Pin ATmega4809 Pin Function Shared Functionality
1 [ID] — — Communication line to the ID
chip on an extension board
2 [GND] — — Ground
3 [ADC(+)] PD4 ADC0 AIN4 —
4 [ADC(-)] PD5 ADC0 AIN5 —
5 [GPIO1] PE0 GPIO —
6 [GPIO2] PF6 GPIO/RESET SW1 , DEBUG , EDBG
ATmega4809 Xplained Pro
Hardware User Guide
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2020 Microchip Technology Inc.
User Guide
DS50002716C-page 13