NEX ROBOTICS FIREBIRD V ATMEGA 2560 Hardware Manual page 82

4.2 ATMEGA8 (slave) microcontroller pin configuration
Pin No.
1 INT1/PD3
2 XCK/TOSC1/PB6
3 GND
4 VCC
5 GND
6 VCC
7 XTAL1/TOSC1/PB6
8 XTAL2/TOSC1/PB7
9 (T1) PD5
10 (AIN0) PD6
11 (AIN1) PD7
12 (ICP) PB0
13 (OC1A) PB1
14 (SS/OC1B) PB2
15 (MOSI/OC2) PB3
16 (MISO) PB4
17 PB5 (SCK)
18 AVCC
19 ADC6
20 AREF
21 GND
22 ADC7
23 PC0 (ADC0)
24 PC1 (ADC1)
25 PC2 (ADC2)
26 PC3 (ADC3)
27 PC4 (ADC4/SDA)
28 PC5 (ADC5/SCL)
29 PC6 (RESET)
30 PD0 (RXD)
31 PD1 (TXD)
32 PD2 (INT0)
Table 4.2: ATMEGA8 microcontroller pin connections
* MOSI, MISO, SCK and SS pins of ATMEGA2560 are associated to the ISP (In System
programming) port as well as the SPI interface to ATMEGA8. J4 needs to be disconnected
before doing ISP. To communicate with ATMEGA8 jumper J4 needs to be in place. For more
details refer to section 3.19.6 J4.
© NEX Robotics Pvt. Ltd. and ERTS Lab, CSE, IIT Bombay, INDIA
Pin name
Not Used
Not Used
Ground
5V
Ground
5V
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
ISP (In System Programming) and SPI Communication
with ATMEGA2560. *
5V
ADC input for IR proximity analog sensor 7
5V
Ground
ADC input for IR proximity analog sensor 8
ADC input for white line sensor 4
ADC input for white line sensor 5/Servo pod
ADC input for white line sensor 6
ADC input for white line sensor 7/Servo pod
ADC input for Current Sensing IC ACS712
ADC input for IR proximity analog sensor 6
Microcontroller reset
Not Used
Not Used
Not Used
Fire Bird V ATMEGA2560 Hardware Manual
USED FOR
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