SWITCH MULTIPLEXER DEVICES WITH EMBEDDED DIGITAL SEQUENCERS

• US 20120254803A1
• Filed: 06/15/2011
• Published: 10/04/2012
• Est. Priority Date: 03/29/2011
• Status: Abandoned Application

• Current Assignee: Intersil Americas LLC (Renesas Electronics Corporation)
• Original Assignee: Intersil Americas LLC (Renesas Electronics Corporation)
• Inventors: Grist, Robert Allen, Croft, Gregg Douglas
• Application Number:
  US13/161,055
• Publication Number:
  US 20120254803A1
• Time in Patent Office: Days
• US Class Current: 715/832
• CPC Class Codes: G05B 19/042 using digital processors G05B19/05 takes precedence

Abstract

A switch multiplexer device comprises a plurality of analog switches, and an embedded digital sequencer in operative communication with the analog switches. The embedded digital sequencer including a plurality of sequence control registers. The embedded digital sequencer is configured to transmit control information to the analog switches, with the control information including single or extended control information. The extended control information is employed to pre-load operational information for switch configuration updates when single control operations are conducted. In one embodiment, the switch multiplexer device includes a bitwise manipulator and a data array storage, which are in operative communication with the analog switches and one or more of the sequence control registers.

Claims

1. A switch multiplexer device, comprising:

a plurality of analog switches; and

an embedded digital sequencer in operative communication with the analog switches, the embedded digital sequencer including a plurality of sequence control registers;

wherein the embedded digital sequencer is configured to transmit control information to the analog switches, the control information including single or extended control information;

wherein the extended control information is employed to pre-load operational information for switch configuration updates when single control operations are conducted.

2. The device of claim 1, further comprising a bitwise manipulator in operative communication with one or more of the sequence control registers and configured to define transition operations from a current switch configuration to a next switch configuration.

3. The device of claim 2, wherein the bitwise manipulator provides a starting switch configuration and is reloaded when a count decrements to zero.

4. The device of claim 1, further comprising a data array storage in operative communication with one or more of the sequence control registers, the data array storage configured to store one or more data patterns during a pre-load operation.

5. The device of claim 4, wherein the data array storage provides a starting location of the stored data patterns.

6. The device of claim 1, wherein the sequence control registers comprise a default pattern register, a count register, a divide register, an instruction register, and a mode register.

7. The device of claim 6, further comprising an interface in operative communication with the sequence control registers and configured to pre-load the sequence control registers with sequence and control information.

8. The device of claim 7, further comprising a logic module in operative communication with the interface and configured to provide signals for power up, interface control, and status updates.

9. The device of claim 7, further comprising an intermediate register in operative communication with the interface and the embedded digital sequencer.

10. The device of claim 9, further comprising an active pattern register responsive to signals from the intermediate register and the mode register.

11. The device of claim 10, further comprising a gate drivers module operatively coupled to the analog switches and configured to receive a signal from the active pattern register to activate the switches.

12. A switch multiplexer device, comprising:

a plurality of analog switches;

an embedded digital sequencer in operative communication with the analog switches, the embedded digital sequencer including a plurality of sequence control registers;

a bitwise manipulator in operative communication with the analog switches and one or more of the sequence control registers, the bitwise manipulator configured to define transition operations from a current switch configuration to a next switch configuration; and

a data array storage in operative communication with the analog switches and one or more of the sequence control registers, the data array storage configured to store one or more data patterns during a pre-load operation and increment an active location in the data array storage during data acquisition;

wherein the embedded digital sequencer is configured to transmit a control signal to the analog switches through the bitwise manipulator or the data array storage to open or close the analog switches.

13. The device of claim 12, further comprising an interface in operative communication with the digital sequencer and configured to pre-load the sequence control registers with sequence and control information.

14. The device of claim 13, wherein the sequence control registers comprise a default pattern register, a count register, a divide register, an instruction register, and a mode register.

15. The device of claim 14, wherein the bitwise manipulator is configured to receive signals from the default pattern register and the instruction register.

16. The device of claim 14, wherein the data array storage is configured to receive signals from the default pattern register and the count register.

17. The device of claim 14, further comprising a logic module in operative communication with the device interface, and a source selection block in operative communication with the logic module.

18. The device of claim 17, further comprising an active pattern register in operative communication with the source selection block, the source selection block configured to provide a signal for direct loading of the active pattern register from the serial interface.

19. The device of claim 18, wherein the source selection block is configured to select signals from the bitwise manipulator or the data array storage for transmission to the active pattern register.

20. The device of claim 19, further comprising a gate drivers module operatively coupled to the analog switches and configured to receive a signal from the active pattern register to activate the switches.

21. The device of claim 20, further comprising an increment block coupled to the data storage array such that during data array operations, the increment block detects and signals a logic condition that causes a data address pointer to point to a next pattern in the data storage array, thereby updating pattern data being sent to the source selection block.

22. The device of claim 20, further comprising an execute block coupled to the bitwise manipulator such that during bitwise operation, the execute block detects and signals the logic condition that causes the bitwise manipulator to perform an operation designated by the instruction register.

23. An electronic data acquisition system, comprising:

one or more sensors;

at least one switch multiplexer device in signal communication with the one or more sensors, the switch multiplexer device comprising;

a plurality of analog switches; and

an embedded digital sequencer in operative communication with the analog switches, the embedded digital sequencer including a plurality of sequence control registers; and

at least one analog-to-digital convertor in signal communication with the at least one switch multiplexer device.

24. The system of claim 23, further comprising a bitwise manipulator in operative communication with one or more of the sequence control registers.

25. The system of claim 23, further comprising a data array storage in operative communication with one or more of the sequence control registers.

26. The system of claim 23, further comprising:

a bitwise manipulator in operative communication with the analog switches and one or more of the sequence control registers, the bitwise manipulator configured to define transition operations from a current switch configuration to a next switch configuration; and

a data array storage in operative communication with the analog switches and one or more of the sequence control registers, the data array storage configured to store one or more data patterns during a pre-load operation and increment an active location therein during data acquisition.

27. The system of claim 23, further comprising a plurality of external mechanical relays operatively coupled to the analog switches.

28. The system of claim 23, further comprising a plurality a plurality of digital drivers or level translators operatively coupled to the analog switches.

29. An electronic testing system, comprising:

at least one electronic stimulus source;

at least one switch multiplexer device in signal communication with the stimulus source, the switch multiplexer device comprising;

a plurality of analog switches; and

a digital sequencer in operative communication with the analog switches, the digital sequencer including a plurality of sequence control registers;

wherein the digital sequencer is configured to transmit control information to the analog switches such that the switches transmit a selected stimulus to a unit under test.

30. The system of claim 29, further comprising a bitwise manipulator in operative communication with one or more of the sequence control registers.

31. The system of claim 29, further comprising a data array storage in operative communication with one or more of the sequence control registers.

32. The system of claim 29, further comprising:

a bitwise manipulator in operative communication with the analog switches and one or more of the sequence control registers, the bitwise manipulator configured to define transition operations from a current switch configuration to a next switch configuration; and

a data array storage in operative communication with the analog switches and one or more of the sequence control registers, the data array storage configured to store one or more data patterns during a pre-load operation and increment an active location therein during data acquisition.

33. The system of claim 29, further comprising a plurality of external mechanical relays operatively coupled to the analog switches.

34. The system of claim 29, further comprising a plurality a plurality of digital drivers or level translators operatively coupled to the analog switches.

35. A control and monitor system, comprising:

at least one switch multiplexer device comprising;

a first plurality of analog switches;

a second plurality of analog switches; and

an embedded digital sequencer in operative communication with the analog switches, the embedded digital sequencer including a plurality of sequence control registers;

a plurality of interface control modules operatively coupled to the first plurality of analog switches to control a plurality of external devices;

a plurality of interface sensor modules operatively coupled to the second plurality of analog switches to monitor a plurality of external sensor measurement channels.

36. A sequence execution interface for a switch multiplexer device, the sequence execution interface comprising:

a graphical representation of a plurality of analog switches that is configured to depict the analog switches in an open or closed position; and

an information display for a plurality of sequence control registers in the switch multiplexer device.

37. A user interface for a plurality of switch multiplexer devices, the user interface comprising:

a sequence execution interface for a first switch multiplexer device, the sequence execution interface comprising;

a graphical representation of a plurality of analog switches that is configured to depict the analog switches in an open or closed position; and

an information display for a plurality of sequence control registers in the first switch multiplexer device; and

two or more additional sequence execution interfaces for each of two or more switch multiplexer devices operatively coupled to the first switch multiplexer device, the two or more additional sequence execution interfaces each comprising;

a graphical representation of a plurality of analog switches; and

an information display for a plurality of sequence control registers.

38. A method of operating a switch multiplexer device, the method comprising:

pre-loading control information in a plurality of sequence control registers in the switch multiplexer device;

transmitting the control information to a plurality of analog switches in the switch multiplexer device; and

activating the analog switches to open or close based on the control information.

39. The method of claim 38, wherein the switch multiplexer device comprises:

a bitwise manipulator operatively communicating with the analog switches and one or more of the sequence control registers, the bitwise manipulator defining transition operations from a current switch configuration to a next switch configuration; and

a data array storage operatively communicating with the analog switches and one or more of the sequence control registers, the data array storage storing one or more data patterns during the pre-loading and incrementing an active location in the data array storage during data acquisition.