KUNBUS-COM EtherCAT
12 / 135
Slave Mode ("a14": +3.3V, "a6" +3.3V)
Pin
Designation
Direction
Comment
a1
CDI.TX
[OUT]
Send CDI
a2
receive CDI.RX
[IN]
CDI
a3
GND
Supply
a4
SPI.SCK
[IN]
SPI Clock
a5
SPI.MOSI
[IN]
SPI Data In
a6
SPI.MODE.DIR
[IN]
SPI Mode
1 = Slave
a7
SPI.MID
[IN]
SPI Middle
a8
UART.TX
[OUT]
Send SDI
a9
UART.TE
[OUT]
SDI 1 = transmitter activ-
ated
for RS485 operation
a10-a13 Reserved
Do not connect!
a14
MODE
[IN]
Mode-Select
1 = Serial Mode
a15
RESET
[IN]
Module-Reset ( low-active )
a16
GND
Supply
b1-b2
Reserved
Do not connect!
b3
GND
Supply
b4
SPI.MISO
[OUT]
SPI Data Out
b5
SPI.CS
[IN]
SPI Chip-Select
b6
SPI.READY
[OUT]
SPI Ready
b7
SPI.RESET
[OUT]
Reset signal for the SSC
b8
UART.RX
[IN]
Receive SDI
b9-b15
Reserved
Do not connect!
b16
+3V3
Supply
Overview