2
Hardware Features
Page 12
The microcontroller (installed on a ZIF socket on ZK-S12(X) series);
Header connectors to access the I/O pins of the microcontroller;
An oscillator area to configure the clock source of the microcontroller;
MCU jumpers for setting the microcontroller’s operating mode, the
microcontroller’s internal voltage regulator and the microcontroller’s
internal A/D converter voltage reference.
2.1.2 Power Supply Section
The Power Supply section takes a 12 V DC voltage and, thanks to the built-
in power supply, provides a regulated voltage for the rest of the board.
2.1.3 USB to BDM Interface
The USB to BDM interface is a circuitry that electrically and logically
translates BDM-like commands sent by the host PC through the USB cable
to the BDM interface of the microcontroller.
i
Note: to bypass the built-in USB to BDM interface when using an
external in-circuit debugger (via the BDM connector), please
remove the “RESET ENA” and “BKGD ENA” jumpers.
2.1.4 BDM Connector
Even though the SK-S12(X) and ZK-S12(X) Series Starter Kits feature a
built-in USB to BDM interface, a separate, standard BDM connector is
present which allows an external in-circuit debugger to be used.
2.1.5 Reset Section
This section groups a reset push-button and a reset circuitry to generate a
suitable reset signal for the microcontroller and for the peripherals connected
to it.
