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6

DS-ISL40 R1.6

mode. If nSleep pin is low upon waking up, the local device that lowered it must raise the nSleep back

high.

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]

F0

F1

1111

3.58Mhz

4.5Mhz

1110

3.58Mhz

5.5Mhz

1101

3.58Mhz

6Mhz

1100

3.58Mhz

6.5Mhz

1011

4.5Mhz

5.5Mhz

1010

4.5Mhz

6Mhz

1001

4.5Mhz

6.5Mhz

1000

4.5Mhz

Reserved

0111

10.7Mhz

Reserved

0110

5.5Mhz

Reserved

0101

5.5Mhz

Reserved

0100

6Mhz

Reserved

0011

6Mhz

Reserved

0010

6.5Mhz

Reserved

0001

6.5Mhz

Reserved

0000(default)

5.5Mhz

6.5Mhz

BitRate1-0 [2]

10 = 57.6Kbps

01 = Reserved

11 = 38.4Kbps

00 = 19.2Kbps

Signal

High (“1”)

Low (“0”)

AutoSleep

Auto Sleep On

Auto Sleep Off

nExtendIn

SIG[7:4] are outputs

SIG[7:4] are inputs

ID[3:0]

Defines device ID

InterHop

InterHop On

InterHop Off

INH

Wake

Normal

mode

DC-BUS

Wakeup Message

Standby

HDO

T1

T2

T1 = 30uS-62uS

T2 = 92uS-124uS