AT90PWM2-3 Datasheet, PDF (5/6 Pages) ATMEL Corporation – RS232 cable from PC to RS232 CTRL connector

1.3 STK520 Jumper Configuration for Parallel Programming
Jumper
JP1
JP2
JP3
JP4
JP5
JP6
JP7
JP8
JP9
JP10
JP11
JP12
JP13
JP14
Position
On
On
On
Off
Off
Off
On
On
On
On
On
On
Off
Off
Function
XT1
XT2
RESET
RX
TX
VTG
ANA REF
D2A
AMP0+
AMP0-
AMP1+
AMP1-
Description
Connect STK500 XT1 circuit to AVR PE1
Connect STK500 XT2 circuit to AVR PE2
Connect STK500 RESET circuit to AVR PE0
Connect RxD DALI to RxD Input of the AVR
Connect TxD DALI to TxD Output of the AVR
Useful to measure the VCC and AVCC current
Connect STK500 REF circuit to AVR AREF
Isolate D2A output
Isolate AMP0+ input
Isolate AMP0- input
Isolate AMP1+ input
Isolate AMP1- input
Potentiometer supply from Analog V Ref
Potentiometer output to ADC0 input
-4
7654A–AVR–06/06
AT90PWM2/3 Programming Guide