US 7,584,317 B2
Protocol conversion circuit
Yuki Sakai, Kawasaki (Japan); and Katsuhiro Yoda, Kawasaki (Japan)
Assigned to Fujitsu Limited, Kawasaki (Japan)
Filed on Aug. 14, 2007, as Appl. No. 11/889,484.
Application 11/889484 is a continuation of application No. PCT/JP2005/002283, filed on Feb. 15, 2005.
Prior Publication US 2008/0040521 A1, Feb. 14, 2008
Int. Cl. G06F 13/36 (2006.01); G06F 15/16 (2006.01)
U.S. Cl. 710—315  [713/400; 713/401; 714/814; 714/815; 709/230; 455/422.1] 12 Claims
OG exemplary drawing
 
1. A protocol conversion circuit performing a protocol conversion between a preceding stage circuit and a reconfigurable circuit provided in a succeeding stage, comprising:
a data storing unit to store input data from the preceding stage circuit;
an output enable signal generating unit to generate an output enable signal for outputting data stored in the data storing unit to the reconfigurable circuit on a basis of configuration information of the reconfigurable circuit;
an address specifying unit to specify an address for read of an output data for the data storing unit based on the output enable signal; and
a start signal generating unit to output a start signal to the output enable signal generating unit at a time point when storing of an initial input data is started for a time interval externally specified in the data storing unit, wherein
the output enable signal generating unit generates an output enable signal which is delayed, by a number of clocks specified with a parameter, from an input time point of the start signal.