TS13103

Final Datasheet Rev 2.1

28 July 2016

Semtech

Proprietary & Confidential

Switch Commands

The (C3 C2 C1 C0) field sent using the CLK pin determines the command sent to the switch. The following commands are

defined:

C3

C2

C1

C0

Command

0

0

0

0

Not allowed (No Operation)

0

0

0

1

OFF, Immediate

0

0

1

0

OFF, Zero Crossing

0

0

1

1

ON, Immediate

0

1

0

0

ON, Zero Crossing

0

1

0

1

ON, Immediate, with Dithering

0

1

1

0

ON, Zero Crossing, with Dithering

0

1

1

1

Heartbeat

1

0

0

0

Not allowed (No Operation)

1

0

0

1

Send Power (PTO), 8 pulses

1

0

1

0

Send Power (PTO), 16 pulses

1

0

1

1

Send Power (PTO), 32 pulses

1

1

0

0

Send Power (PTO), 64 pulses

1

1

0

1

Not allowed (No Operation)

1

1

1

0

Not allowed (No Operation)

1

1

1

1

Poll State (No Operation)

Table 2: Valid Commands

Each switch monitors the CLK line regardless of the address; however only the device with the (AD1 AD0) pins configured to

match the (A2 A1 A0) field sent via the CLK pin will respond to the Command bits (C3 C2 C1 C0). If two or more devices on the

CLK bus have address pins wired alike, those devices will all respond to the same command. However, doing this may lead to

DATA bus conflicts when the device Status Values are reported.

The command is executed after the status values are shifted out to avoid interference on the status values caused by transients

in the system.

ON Commands

Four modes of closing the switch are available:

1.

ON, Immediate: When this command sequence is sent, the switch will be closed after the status values are shifted out.

The system must comprehend the time it takes to complete the sequence in order to place the switch in the closed state

at the desired time.

2.

ON, Zero Crossing: When this command sequence is sent, the switch will close on the first occurrence of a polarity

receives the command and the status values are shifted out. This should not be used for DC applications.

3.

ON, Immediate with Dithering: This command closes the switch as in ON, Immediate, above, but puts the device into

details.

4.

ON, Zero Crossing with Dithering: This command closes the switch as in ON, Zero Crossing, but enables the Dither mode

as described above.

OFF Commands

Two modes of opening the switch are available:

1.

OFF, Immediate: When the OFF, Immediate sequence is sent, the switch will transition to the open state after the status

values are shifted out.

2.

OFF, Zero Crossing: When the OFF, Zero-Crossing sequence is received, the switch will open on the first occurrence of the