A first interleaved address generator is configured to generate a first
interleaved address, and a second interleaved address generator is
configured to generate a second interleaved address substantially
concurrently with the first interleaved address generator generating the
first interleaved address. A controller is configured to disable the
second interleaved address generator from generating the second
interleaved address if the second interleaved address is not needed to
produce a continuous stream of interleaved addresses.