INS10027-6 Z-Wave Module Selection Guideline 2007-03-16
Zensys A/S Z-Wave Modules Page 8 of 14
Name I/O Description
+3.3V
Power Module 3.3V supply input.
ADC[3:0] I
Analog-to-Digital Converter input. The ADC is 12/8 bit and
can use VCC, an internal or an external voltage as
reference.
ADC3: input
ADC2: input
ADC1: input/lower reference
ADC0: input/higher reference
GND Power Ground signal
INT[1:0] I/O
Interrupt: The signal can be either level or edge trigged.
When in power down mode, the ZM2102 Z-Wave Module’s
MCU can be woken up by asserting the interrupt signal.
P[0.1-0.0],
P[1.7-1.0]
I/O In/Out: General purpose I/O signal.
MISO
1
I/O
Master-In-Slave-Out SPI interface: output in slave mode
operation and input in master mode operation.
MOSI
1
I/O
Master Out Slave In SPI interface: input in slave mode
operation and output in master mode operation.
PWM I/O
Pulse Width Modulator Output: Used for frequency variation
applications.
RESET_N I
Reset: Active low reset. The ZW0201 Single Chip has an
integrated Power-On-Reset and Brown-out detection
circuitry.
RXD I/O
UART Receive Data: Supports 9.6kbaud, 37.4kbaud,
115.2kbaud.
SCK
1
I/O
SPI Clock: Can be used as either master SPI clock output or
slave SPI clock input.
P1.5 /
SS_N
1
I/O
Slave Select: Active low SPI slave select input. When in SPI
slave mode the input acts as chip select input.
TRIAC I/O
TRIAC Control: A triac controller is implemented in the
ZW0201 Single Chip that can controls a triac on the
Application Module like light dimmer modules etc.
TXD I/O
UART Transmit Data: Supports 9.6kbaud, 37.4kbaud,
115.2kbaud.
VPP
Program
supply
Reserved for programming of future modules.
Not connected when used together with ZM2102 or
ZM3102N.
ZEROX I/O
Zero Cross Detection: Zero cross detection signal used on
dimmer modules detecting 120/240V zero crossing.
Please note that the SPI interface (MISO, MOSI, SCK and SS_N) is not available for the Application SW
in some Z-Wave protocol API’s, see [1].
Table 3 Application Connector Signal Description
