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mode. If nSleep pin is low upon waking up, the local device that lowered it must raise the nSleep back
high.
Wake
INH
T1
DC-BUS
Wakeup Message
Standby
HDO
Normal
T2
T1 = 30uS-62uS
T2 = 92uS-124uS
Figure 3.8 - Wakeup from Wake
3.3 ISL40 Configuration
Pins Mode 4 and Mode 3 should be connected to Vcc. The ISL40 operates at default with the following
parameters:
Bit rate: 19.2 Kbps
F0=5.5MHz
The following configuration pins enable changing of the default values.
F0F1-3-0 [4]
1111
1110
1101
1100
1011
1010
1001
1000
0111
0110
0101
0100
0011
0010
0001
0000(default)
F0
3.58Mhz
3.58Mhz
3.58Mhz
3.58Mhz
4.5Mhz
4.5Mhz
4.5Mhz
4.5Mhz
10.7Mhz
5.5Mhz
5.5Mhz
6Mhz
F1
4.5Mhz
5.5Mhz
6Mhz
6.5Mhz
5.5Mhz
6Mhz
6.5Mhz
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
6.5Mhz
6Mhz
6.5Mhz
6.5Mhz
5.5Mhz
BitRate1-0 [2]
10 = 57.6Kbps
01 = Reserved
11 = 38.4Kbps
00 = 19.2Kbps
Signal
AutoSleep
nExtendIn
ID[3:0]
High (“1”)
Auto Sleep On
SIG[7:4] are outputs
Defines device ID
InterHop On
Low (“0”)
Auto Sleep Off
SIG[7:4] are inputs
InterHop
InterHop Off
© 2007 Yamar Electronics Ltd.
6
DS-ISL40 R1.6
YAMAR [ YAMAR ELECTRONICS LTD. ]
