| 摘要 |
a self cell transmitting unit for storing a 8-bit unit of self cell input data in its own first-in first-out to read the data in 53 octet unit, for adding 3 octet header to the read data to convert the data in 32-bit unit, for outputting a self cell transmitting data starting signal with the converted data, and for checking whether the data is transmitted to any of first and second rings to thereby generate first and second rings self cell transmitting data writing signal; an alternate cell transmitting unit for storing a 32-bit unit of alternate cell input data in its own first-in first-out to read the data in 14 longword unit, for outputting an alternate cell transmitting data starting signal with the read data, and for checking whether the data is transmitted to any of the first and second rings to thereby generate first and second rings alternate cell transmitting data writing signal; and a signal arbitrating unit for arbitrating output signals from the self cell transmitting unit and output signals from the alternate cell transmitting unit, for outputting the first ring transmitting data starting signal, the first ring transmitting data writing signal to the first ring, if the output signals correspond to the first ring, and for outputting the second ring transmitting data starting signal, the second ring transmitting data writing signal to the second ring, if the output signals correspond to the second ring. |
