System and method for controlling circuit input-output timing

Patent metadata

Field	Value
Publication number	US-9024670-B2
Application number	US-201314048238-A
Country	US
Kind code	B2
Filing date	Oct 8, 2013
Priority date	Oct 8, 2013
Publication date	May 5, 2015
Grant date	May 5, 2015

Abstract

An integrated circuit (IC) includes a plurality of input/output (I/O) terminals through which signals pass into or out of the IC and an I/O timing module. The I/O timing module is configured to add propagation delay to signals passing between the I/O terminals and I/O subsystems of the IC. The I/O timing module includes a plurality of delay elements associated with each of the I/O terminals, a control register associated with each of the I/O terminals, a memory, and I/O delay control logic. The control register is coupled to each of the delay elements associated with the I/O terminal. The memory is encoded with delay information. The I/O delay control logic is configured to initialize the propagation delay associated with each of the I/O terminals by selecting which of the delay elements are to be applied to produce the propagation delay based on the delay information stored in the memory.

First claim

What is claimed is:

1. An integrated circuit (IC), comprising:
a plurality of input/output (I/O) terminals through which signals pass into or out of the IC; and
an I/O timing module configured to add propagation delay to signals passing between the I/O terminals and I/O subsystems of the IC, the I/O timing module comprising:
a plurality of delay elements associated with each of the I/O terminals;
a control register associated with each of the I/O terminals and coupled to each…

Assignees

• Texas Instruments Inc

Inventors

• Tiwari Ashutosh
• Dham Ish Kumar
• Murthy Pranav
• Bansal Virendra Brijlal

Classifications

• H03K5/159 Primary

  Electricity · mapped topic

• H03K5/131 Primary

  Electricity · mapped topic