Hardware Description
3-22
AVR STK500 User Guide
1925C–AVR–3/03
Figure 3-30.
XTAL1 and OSCSEL Connections
3.8.5
BSEL2 Jumper
The BSEL2 jumper connects the Byte Select 2 signal for High-voltage Programming of
ATmega8, ATmega16, ATmega161, ATmega163, ATmega128, and ATmega323. The
BSEL2 jumper should only be mounted when High-voltage Programming ATmega16,
ATmega161, ATmega163, ATmega128, or ATmega323. When using ATmega8, con-
nect the right BSEL2 pin to PC2 in the target area. See Figure 3-31. For descriptions of
the Byte Select 2 signal, see the programming section of the corresponding parts
datasheet.
Figure 3-31.
BSEL2 Connection for ATmega8
3.8.6
PJUMP Jumpers
The PJUMP jumpers route the programming pin of AT90S2333, AT90S4433, and
ATmega8 to the programming lines when using High-voltage Programming. The
PJUMP jumpers should only be mounted when using High-voltage Programming on
AT90S2333, AT90S4433, or ATmega8. During debugging, High-voltage Programming
of other parts and ISP programming, these jumpers should not be mounted.
Figure 3-32.
PJUMP Jumpers Placement
PE1
RST
GND
XT2
VTG
PE0
PE2
REF
XT1
GND
1 2
XTAL1 NET
XTAL1
Voltage
converter
VTG
5V
AVR
Studio
MASTER
MCU
CR
YST
AL
PORTE
Jumper
Jumper
Oscillator
OSCSEL
3
2
1
BSEL2
PJUMP
Cable to PC2
Correct
Jumper
Placement
Not
Correct
Summary of Contents for AVR STK500
Page 1: ...STK500 User Guide ...
Page 2: ......
Page 38: ...Hardware Description 3 28 AVR STK500 User Guide 1925C AVR 3 03 ...
Page 40: ...Installing AVR Studio 4 2 AVR STK500 User Guide 1925C AVR 3 03 ...
Page 52: ...In System Programming of an External Target System 6 2 AVR STK500 User Guide 1925C AVR 3 03 ...
Page 56: ...Technical Support 8 2 AVR STK500 User Guide 1925C AVR 3 03 ...
Page 60: ...Appendix A 10 2 AVR STK500 User Guide 1925C AVR 3 03 ...