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

Deutschmann Automation GmbH & Co. KG
31 OUT
Logic
32 GND

The PROFIBUS signals are galvanically isolated. The insulation voltage is 1000 Vrms.
1)
Version without 485 (ROFIBUS) - driver (see chapter 3.7 and chapter 3.10.2).
*) The version "LWL" (without galvanic isolation on the PROFIBUS-side) has the TTL-signals directly avai-
lable at the pins 13, 14 and 15. The pins 19 and 20 are not connected, since for the LWL-version no galva-
nic separated PROFIBUS-voltage is required or it is generated by itself (see chapter 3.10.3).
5V ± 5%, < 250mA
IN
Reset
IN
Logic
OUT
Logic
OUT
Driver
3.3V ± 5%, < 250mA
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 11 on page 37.
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 interfer-
ences (see chapter 3.6).
16.5.18
TE transmit enable
GND ground supply voltage of the IC
V
IL
< 0.3V / 5mA
< 0.8V / 0,5mA
V
OL
< 0.6V / 1mA
< 0.33V / 4mA
V
IL
< 0.2V / 4mA
< 0.5V / 0.4mA
V
OL
< 0.6V / 1mA
< 0.5V / 4mA
Instruction manual UNIGATE
V
IH
>1.95V / 10µA
>1.95V / 10µA
V
OH
>3.8V / 0.1mA
>3.8V / 4mA
V
IH
>1.5V / 10µA
>1.5V / 10µA
V
OH
>2.3V / 0,1mA
>2.5V / 4mA
®
IC - PROFIBUS DP V. 5.1
Hardware design
12