Patent ID: 7519742
Filing Date: 2009-04-14
Classification: G06F

Abstract:
1. A semiconductor integrated circuit apparatus, comprising: a data transmitter circuit having a shift register which stores identification number data and transfer data, and a transmission control circuit having a first data converter circuit which converts each of the bits of the identification number data and transfer data to 2-bit complementary data, and outputs the 2-bit complementary data to first and second output terminals, and a transfer managing circuit which outputs a transfer completion signal to a third output terminal, following transfer of the identification number data, the transfer managing circuit including a unit configured to output the transfer completion signal in response to a termination of the transfer of the identification number data, and a switching unit configured to switch a transmission of the identification number data to a transmission of the transfer data in response to the transfer completion signal; first, second, and third transmission lines connected to the first, second, and third output terminals, respectively; and a plurality of data receiver circuits each of which includes a second data converter circuit which restores 2-bit complementary data transferred from the data transmitter circuit via the first and second transmission lines to the identification number data and transfer data, a reception control circuit which has an allocated specific identification number, and which, when the transfer completion signal has been received via the third transmission line, compares the allocated specific identification number with the identification number data restored by the second data converter circuit, and a shift register provided in association with the reception control circuit; wherein the each reception control circuit feeds transfer data transmitted from the data transmitter circuit to the associated shift register in accordance with a result of comparison between the identification number data and the allocated identification number.