Digilent Minicon - Manual (Page 7)

Digilent, Inc. Minicon Reference Manual
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Table 1: 6-pin PMOD headers and SPI
connection
Pin Description: All Pmod connector pins can be used for
general purpose I/Os. The following descriptions are for use
with specific Digilent Pmod modules: Minicon Pmod header pins to ATmega168
ports/bit
Pin Function Port/bit
JA General purpose I/Os and on board LEDs 1 PCINT20/XCK/
T0 PD4
2 PCINT21/OC0B/
T1 PD5
3 PCINT22/OC0A
/AIN0 PD6
4 PCINT23/AIN1 PD7
5 GND
6 VCC
JB H-bridge connection
This connector is for use with an H-bridge module. Pins 1 and 2
are the direction and enable signals for the H-bridge. Pins 3 and
4 are for encoder feedback. 1 INT0/PCINT18 PD2
2 PCINT1/OC1A PB1
3 PCINT0/CLKO/I
PC1 PB0
4 PCINT19/OC2B/
INT1 PD3
5 GND
6 VCC
JC Analog input
This connector provides inputs to the analog to digital converter
of the ATmega168.
1 ADC0/PCINT8 PC0
2 ADC1/PCINT9 PC1
3 ADC2/PCINT10 PC2
4 ADC3/PCINT11 PC3
5 GND
6 VCC
J1 SPI interface and in-system-programming
The SPI interface is accessed on J1 when the shorting block is in
the SS position on JP10. Connector J1 is used for in-system-
programming when the shorting block on JP10 is in the RST
position. 1 PCINT2/SS/OC1
B PB2
2 PCINT3/OC2A/
MOSI PB3
3 PCINT4/MISO PB4
4 SCK/PCINT5 PB5
5 GND
6 VCC
J2 Serial port communications and interrupts
The USART serial port and the ATMEL TWI interface can be
accessed on J2. 1 ADC5/SCL/PCI
NT13 PC5
2 ADC4/SDA/PCI
NT12 PC4
3 RXD/PCINT16 PD0
4 TXD/PCINT17 PD1
5 GND
6 VCC