Bus control device, arbitration device, integrated circuit device, bus control method, and arbitration method
A bus control and integrated circuit technology, applied in the field of bus system, can solve the problems of not being able to meet the transmission bandwidth of stable moving image data, increasing sound jumps and video disturbances, etc.
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no. 1 approach
[0075] structure
[0076] figure 1 Shown is the structure of a bus system 1 including a bus control device according to the first embodiment.
[0077] The bus system 1 includes a first bus and a second bus connected via a bridge unit 21, a first device 91 and a third device 93 connected to the first bus, a second device 92 and a fourth device connected to the second bus The device 94, the first arbitration unit 11 for arbitrating the right to use the first bus, and the second arbitration unit 12 for arbitrating the right to use the second bus.
[0078] The first arbitration unit 11, the second arbitration unit 12 and the bridge unit 21 are realized by integrated circuits.
[0079] The bus control device is composed of a first arbitration unit 11 and a second arbitration unit 12 .
[0080] The first arbitration unit 11 has a bandwidth information acquisition unit 111 , an arbitration period setting unit (arbitration period setting unit) 112 and a bandwidth information notifi...
no. 2 approach
[0206] structure
[0207] Figure 23 Shown is the structure of a bus system 2 including a bus control device related to the second embodiment.
[0208] The bus system 2 includes a first bus and a second bus connected via the first bridge unit 21, a third bus connected to the second bus via the second bridge unit 22, a first device 91 and a second bus connected to the first bus. Three devices 93, the fourth device 94 connected to the second bus, the second device 92 and the fifth device 95 connected to the third bus, the first arbitration unit 11 for arbitrating the right to use the first bus, arbitrating the use of the second bus The second arbitration unit 14 for arbitrating the right to use the third bus, and the third arbitration unit 15 for arbitrating the right to use the third bus.
[0209] The first arbitration unit 11 , the second arbitration unit 14 , the third arbitration unit 15 , the first bridge unit 21 and the second bridge unit 22 are implemented by integrated...
no. 3 approach
[0237] structure
[0238] Figure 28 Shown is the structure of a bus system 3 including a bus control device related to the third embodiment.
[0239] The bus system 3 includes a first bus and a third bus connected via the first bridge unit 21, a second bus connected to the third bus via the second bridge unit 22, and a first device 91 and a third bus connected to the first bus. Four devices 94, the second device 92 and the fifth device 95 connected to the second bus, the third device 93 and the sixth device 96 connected to the third bus, the first arbitration unit 11 for arbitrating the right to use the first bus, A second arbitration unit 16 for arbitrating the right to use the second bus, and a third arbitration unit 17 for arbitrating the right to use the third bus.
[0240] The first arbitration unit 11 , the second arbitration unit 16 , the third arbitration unit 17 , the first bridge unit 21 and the second bridge unit 22 are implemented by integrated circuits.
[024...
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