Method and apparatus for detecting strobe errors

A strobe error detection circuit, the circuit comprising:

• a strobe input;
• a counter coupled to the strobe input to count strobe pulses received;
• a comparator to determine if a strobe error has occurred based on the magnitude of the difference between a first count of strobe pulses and a second count of strobe pulses;
• a clock input, wherein the first count is a value that was stored in a memory location at a first time and the second count is a value that was stored in the memory location at a second time, wherein said first time and said second time are determined using the clock input, wherein said memory location is a location in a buffer, the buffer having a plurality of entries each to store a count of strobe pulses received, the buffer being coupled to and clocked by the strobe input;
• a memory element coupled to the clock input and coupled to the buffer to store a value output from the buffer, the memory element being clocked by the clock input;
• and
• a subtractor coupled to the memory element and to the buffer to determine a difference between the first count of strobe pulses and the second count of strobe pulses, the subtractor being clocked by the clock input.