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5.3 Supported programming interfaces
The ISPjuno programmer is capable of supporting the following 'programming interfaces'...
Programming
Interface
SPI
JTAG
I2C
UART
AVR XMEGA PDI
AVR ATtiny TPI (LV)
ATtiny TPI Port (HV +12V VPP)
AVR UPDI (LV)
AVR UPDI (HV +12V VPP)
Programmable clock output
Please note:
•
*The 'SPI interface', 'JTAG interface' and 'UART interface' signals all share the same physical
programmer I/O lines.
•
This means that the programmer can only be connected to a target device via one of these
programming interfaces at any one time.
5.4 Programmer Target I/O Capability
Target I/O
Capability
Programmable Target
I/O
I/O Voltage Range
I/O Isolation
ESD protection on
Target I/O lines
Over-voltage protection
on Target I/O lines
ISPJUNO - Portable ISP Programmer - User Guide V0.84 – 17/04/20
ISPjuno
Yes*
Yes*
No
Yes*
Yes
Yes
Yes
Yes
Yes
Yes - 32 kHz
ISPjuno
5 x I/O
1 x O
1.8 – 5.0V
-
IEC61000-4-2, air discharge:
15 kV
IEC61000-4-2, contact
discharge: 8kV
YES
Voltages over 9V are clamped.
35
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