ADDRESS CONVERTER, INTERLEAVER AND DE-INTERLEAVER

摘要

An interleaver and a de-interleaver of a small scale and a low power consumption. An address converter (ACON) includes three counters (CNT1, CNT2 and CNT3) corresponding to first to third ranks, and the outputs (DO11, DO12 and DO13) of the individual counters (CNT1, CNT2 and CNT3) are inputted to lookup tables (LUT1, LUT2 and LUT3). A clock (CK1) of a predetermined period is inputted to the counter (CNT3) so that numerical values "0" to "3" are repeatedly outputted. A carry-out (CO3), as outputted in synchronism with the output "0" of the counter (CNT3), is inputted as the clock (CK2) to the counter (CNT2) so that the counter (CNT2) outputs the numerical values "0" to "4" repeatedly. A carry-out (CO2), as outputted in synchronism with the output "0" of the counter (CNT2), is inputted as the clock (CK3) to the counter (CNT1) so that the counter (CNT1) outputs the numerical values "0" to "15" repeatedly.