Boot Enable; Load Out (Spi-Master: Ss0-); Data Out (Spi-Master: Ss1-); Data In (Spi: Miso) - DEUTSCHMANN AUTOMATION UNIGATE IC-EtherNet/IP 2Port Instruction Manual

Deutschmann Automation GmbH & Co. KG
31 OUT
Logic
32 GND

* The supply voltage is 3.3V +/- 5 %, max. 460 mA DC.
3.3V ± 5%, < 460mA
IN
Reset
IN
Logic
OUT
Logic
OUT
Driver
3.2.1

-Boot enable

The IC is started in the firmware update mode with the level GND during the power up process.
See also chapter 15.
3.2.2

Load out (SPI-Master: SS0-)

Strobe signal for the synchronous serial interface. With the positive edge at this output data is
taken from the connected shift registers to the physical outputs.
In SPI mode this Pin serves as a low-active Slave-Select-Signal.
3.2.3

Data out (SPI-Master: SS1-)

On this line data is output on the synchronous serial interface. The most significant bit of the data
is output first.
In SPI mode this Pin serves as a low-active Slave-Select-Signal.
3.2.4

Data In (SPI: MISO)

Data is read in on the synchronous serial interface via this signal. The most significant bit of the
data is expected first.
In SPI mode this Pin serves as data transfer from Slave to Master.
3.2.5

Load In (SPI: MOSI)

This pin is the strobe signal for the input data of the synchronous serial interface.
In SPI mode this Pin serves as data transfer Master to Slave.
3.2.6

Clock (SPI: SCK)

This signal is the clock line for the synchronous serial interface. That signal is equally valid for
data input and data output.
3.2.7

-Reset In

•
A reset generator (Max 809) is on board; with it in the normal case the reset input is not
required. In this case the reset input has to be connected with VCC, in order to avoid interfe-
rences (see chapter 3.6).
• If the the customer's application has to initiate a reset of the UNIGATE
can also be connected with a reset output of the customer's application instead of connecting it
with VCC. Here all specifications of the reset signal, mentioned in chapter 3.2 have to be kept.
The reset-impulse is supposed to last at least 10 ms.
8.2.16 Instruction manual UNIGATE
TE Transmit enable
GND
Ground supply voltage of the IC
V
IL
< 0.25V / 1mA
< 0.5V / 0.4mA
V
OL
< 0.6V / 1mA
< 0.5V / 4mA
V
IH
>1.5V / 10µA
>1.5V / 10µA
V
OH
>2.3V / 0,1mA
>2.5V / 4mA
®
IC - EtherNet/IP 2Port V. 1.8
Hardware design
®
IC, then the reset input
13