...........continued
J203 ATtiny817 Pin Arduino Numbering Functions
Comment
7
GND
GND
8
VIN
External voltage input
Table 4-5. J204 Analog I/O Header
J204
ATtiny817 Pin
Arduino Numbering
Functions
Comment
1
PA4
A0
AIN04
2
PA5
A1
AIN05
3
PA6
A2
AIN06
4
PA7
A3
AIN07
5
PB1
A4
AIN10
6
PB0
A5
AIN11
4.2.2
Extension Header Area
The marked area on the grid I7 to R8 can be used for strapping in an Xplained Pro extension header or a 10-pin
legacy Xplained/RZ600 header.
Figure 4-3. Extension Header Area
The SPI bus signals are available close to the header at row J and K, enabling easy connection to header pin 15 to
18.
Using pins 11 to 20 enables connection of the 10-pin legacy header used on the RZ600 wireless modules and the 10-
pin Xplained sensor modules.
The general bus connections for an Xplained Pro Extension board are indicated in the table below. Detailed wiring
can be found in the selected extension board documentation.
Table 4-6. Extension Header Typical Signals
Pin
Signal Name
Signal Description
1
ID
Communication line to the ID chip on the Xplained extension board
2
GND
Ground
3
ADC(+)
Analog-to-Digital converter, alternatively positive part of differential ADC
ATtiny817 Xplained Mini
Hardware User Guide
©
2019 Microchip Technology Inc.
User Guide
DS50002657B-page 14