...........continued
mikroBUS
™
Socket Pin
ATmega4808 Pin
Function
Shared Functionality
INT
PD6
GPIO
—
RX
PC1
UART1 RX
—
TX
PC0
UART1 TX
—
SCL
PA3
TWI0 SCL
SDA
PA2
TWI0 SDA
+5V
—
VCC_MUX
, MCP73871
output
—
GND
GND
Ground
—
Info:
1) A 0-ohm resistor has been soldered to connect the VCC_MUX pin to the mikroBUS socket. If an add-on
module cannot handle 5V on this pin, the 0-ohm resistor has to be removed. For more information, see
4.4.3
WINC1510 Wi-Fi
®
Module
Microchip's WINC1510 is a low-power consumption 802.11 b/g/n IoT module, specifically optimized for low-power IoT
applications. The module integrates Power Amplifier (PA), Low-Noise Amplifier (LNA), switch, power management,
and a printed antenna or a micro co-ax (U.FL) connector for an external antenna resulting in a small form factor
(21.7x14.7x2.1 mm) design. It is interoperable with various vendors’ 802.11 b/g/n access points. This module
provides SPI ports to interface with a host controller.
WINC1510 provides internal Flash memory as well as multiple peripheral interfaces, including UART and SPI. The
only external clock source needed for WINC1510 is the built-in, high-speed crystal or oscillator (26 MHz). WINC1510
is available in a QFN package or as a certified module.
The communication interface between the ATmega4808 and the WINC1510 Wi-Fi module is SPI, together with some
enable signals and interrupt. The rest of the connections are left unconnected.
Table 4-6. WINC1510 Connections
WIN1510 Pin
ATmega4808 Pin
Function
Shared Functionality
4 RESET_N
PA1
GPIO
—
9 GND
GND
Ground
—
10 SPI_CFG
VCC_TARGET
—
—
11 WAKE
PF4
GPIO
—
12 GND
GND
Ground
—
13 IRQN
PF2
ASYNC EXT INT
—
15 SPI_MOSI
PA4
SPI0 MOSI
16 SPI_SSN
PA7
SPI0 SS
—
17 SPI_MISO
PA5
SPI0 MISO
18 SPI_SCK
PA6
SPI0 SCK
20 VBAT
VCC_TARGET
3.3V supply
—
AVR-IoT Wx Hardware User Guide
Hardware User Guide
©
2020 Microchip Technology Inc.
User Guide
DS50002805B-page 17
