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UNI/O Memory Chips
Fig.29: UNI/O serial memory chips
1-Wire Interface
Fig.30: Components with 1-WIRE interface
1) A Schottky diode is necessary only for devices
requiring higher than the power-supply voltage for
programming, such as DS2505 or DS2406, for
example. A pull-up resistor is needed in any case.
2) For DS1821: In thermostat mode, the VDD pin of the
device must be connected to the D pin of the
programmer. However external supply voltage must
not be connected to the D pin of the programmer. It
may be connected to VDD pin of the programmer
only. In this case the device must be programmed
standalone!
3) For DS28E05: This device requires lower value of the
pull-up resistor, e.g. 560R.
JTAG Interface
Fig.31: Components with J TAG interface
1) Pin P is configurable in the JTAG Player utility. It can
be set to keep the device in reset during
programming. This is needed for ATmega devices, for
example.
2) The programmer always uses an external
power-supply voltage for SVF or XSVF file
programming by means of the JTAG Player
utility.
3) AVR32 microcontrollers are to be programmed from
the UP software through the JTAG interface. The
device must not be reset during programming.
4) ATxmega microcontrollers with the JTAG interface
can be programmed from the UP software through
this interface. Pin P is not needed for programming.
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