ISL40 Datasheet, PDF (2/12 Pages) Yamar Electronics Ltd. – Independent DC-LIN Slave For Asynchronous Communication Over Noisy Lines

Proprietary and Confidential Information of YAMAR Electronics Ltd.
2.2 Channels and Network
The ISL40 operates over one of two preset selectable channels (frequencies) using a single line such
as the vehicle’s battery power line. A SIG40 master and up to 15 ISL40 slave devices can be connected
to each of the channels over the same line. Each of them can receive a message that controls either 4
output pins and returns a message consisting of its 8 input pins status or control 8 output pins and
return status of its 4 input pins according to the device setup. By selecting other channels, more than
one network may be used over same line for different applications.
Channel frequencies: 3.58MHz to 6.5MHz.
Data transfer rate:
up to 57.6Kbps.
Cable length:
Depends on external loads connected to the DC line.
2.3 The ISL40 Device
Figure 2.1 outlines the building blocks of the ISL40 device.
O u tp u t
In p u t
T im in g
3 2 .7 6 8 K
X tal
O s c illa to r
S le e p
C o ntro l
IS L 4 0
L IN
M essage
H a n d le r
M e s s a g e H a n d le r
S ig n a lin g
G e n e ra to r a n d
D e te c to r
M odem
ID
C e ra m ic
F ilte r
C e ra m ic
F ilte r
T x /R x
Figure 2.1 - ISL40 Logical Blocks
2.4 Power Management
Sleep Mode, controlled by the host, saves power by disabling most of the circuits.
During Sleep Mode, the device is switched on for a short period to detect Signaling activity on the bus.
If no activity is detected, the device is switched off.
© 2007 Yamar Electronics Ltd.
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DS-ISL40 R1.6