Atmel STK502 manual Connectors, 2.2.2, Port G/Rst

Using the STK502 Top Module

Figure 2-2.Pin1 on ZIF Socket and TQFP Footprint

		Caution: Do not mount an ATmega169 on the STK502 at the same time as an AVR is
		mounted on the STK500 board. Neither of the devices will work as intended.
2.2	PORT	ATmega169 have additional ports to those available on the STK500. The ports are
	Connectors	located on the STK502 board. They have the same pin out and functionality as the ports
		on the STK500 board. Port A to Port D are already present on the STK500 board. They
		are not duplicated on the STK502.

2.2.1PORT E/PORT F Figure 2-3shows the pin out for the I/O port headers Port E and Port F.

Figure 2-3.General I/O Ports

1 2 1 2

PE0

PE2

PE4

PE6

GND

PE1PF0

PE3PF2

PE5PF4

PE7PF6

VTG GND

PF1

PF3

PF5

PF7

VTG

		PORTE	PORTF
		Note: Port E is also present on the STK500, but only PE0 to PE2 (three least signifi-
		cant bits) are accessible there. To access all Port E bits the connector on the
		STK502 must be used.
2.2.2	PORT G/RST	In addition to the normal Port G pins, this connector has the RESET-signal. Se Figure 2-
		4.

2-2

STK502 User Guide

2528A–AVR–11/02