SFSL4.5MDB YAMAR [Yamar Electronics Ltd.], SFSL4.5MDB Datasheet - Page 8

• Manufacturer Part Number: SFSL4.5MDB
• Description: Independent DC-LIN Slave For Asynchronous Communication Over Noisy Lines
• Manufacturer: YAMAR [Yamar Electronics Ltd.]

The HDO pin outputs the data that is being received from the DC-BUS. It can be used to monitor the
incoming data.
Four input signals to the ISL40. On a Read or Read Change command the pins status is being send
back to the Master in the lower nibble of the returned data byte.
Four output signals from ISL40. The pins state is changed when the Master issues a Write command.
The pins status is defined in the lower nibble of the Write command’s OUT byte.
Four input or output signals of the ISL40, depending on the nExtendIn pin. When configured as inputs
their status is being send back to the Master in the upper nibble of the return data byte. When they are
configured as outputs their state is defined in the upper nibble of the Write command’s OUT byte.
Determines if the SigIO[4:7] pins are inputs or outputs. 1= outputs, 0 = inputs.
Four ID address input pins. Using the ID address each ISL40 on the network or a specified group of
ISL40 can receive individual commands.
When AutoSleep pin is set to High the device will automatically enters sleep mode after about 8
seconds without reception.
Sleep control input from external signal. Should be connected to High (Vcc).
Local wakeup input. Negative or positive edge triggered. This pin can be connected to an external
switch in the application. When the pin is triggered the device will wake up and send a wake up
message to all the devices on the network.
Inhibit output for enabling the host (or an external voltage regulator powering the host. This output is
LOW when in Sleep Mode, and HIGH in normal operation and after a wakeup event.
When high, the device automatically switches frequency after about 4 seconds without bus activity.
© 2007 Yamar Electronics Ltd.
4.1.1
4.1.2
4.1.3
4.1.4
4.1.5
4.1.6
4.2.1
4.2.2
4.2.3
4.2.4
4.3.1
4.1
4.2
4.3
Application interface
Sleep control
Frequency control
HDO
SigIn[0:3]
SigO[0:3]
SigIO[4:7]
nExtendIn
ID[1:4]
AutoSleep
nSleep
Wake
INH
AutoFreqCh
Proprietary and Confidential Information of YAMAR Electronics Ltd.
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DS-ISL40 R1.6