| 摘要 |
PROBLEM TO BE SOLVED: To eliminate the necessity to design multiplexers different in multiplexing level within a range where a multiplexing level is variable by varying the multiplexing level in a multiplexer serializing parallel digital transmitting signals. SOLUTION: D-FF (FF cascade connected with two D latches) 216 and 220 are made into configuration (controlled D-FF) controllable to be function as D-FFs or as buffers. P-FF (FF cascade connected with three D latches) 217 and 221 are made into configuration (controlled P-FF) controllable to be functioned as P-FFs or to maintain a latched state. Selectors 218 and 222 are made into configuration (controlled selector) controllable to be functioned as selectors or as buffers with respect to an output from the D-FF 216. COPYRIGHT: (C)2004,JPO |
