Atmel ISP header Pinouts
Just some different Atmel related ISP headers

Atmel 6 pin

From: "Atmel AVR042:
AVR Hardware Design Considerations"
MISO
1
2
Vcc
SCK
3
4
MOSI
Reset
5
6
GND

Atmel 10 pin

From: "Atmel AVR042:
AVR Hardware Design Considerations"
MOSI
1
2
Vcc
NC
3
4
GND
Reset
5
6
GND
SCK
7
8
GND
MISO
9
10
GND

USBASP V2.0

MOSI
1
2
Vcc
GND
3
4
TxD
Reset
5
6
RxD
SCK
7
8
GND
MISO
9
10
GND
Notes: The Melzi 3D printer controller uses the standard 6 pin connector