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RIVA128 データシート(PDF) 21 Page - STMicroelectronics |
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RIVA128 データシート(HTML) 21 Page - STMicroelectronics |
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21 / 77 page ![]() 128-BIT 3D MULTIMEDIA ACCELERATOR RIVA 128 21/77 5 PCI 2.1 LOCAL BUS INTERFACE 5.1 RIVA 128 PCI INTERFACE The RIVA 128 supports a glueless interface to PCI 2.1 with both master and slave capabilities. The host interface is fully compliant with the 32-bit PCI 2.1 specification. The Multimedia Accelerator supports PCI bus operation up to 33MHz with zero-wait state capability and full bus mastering capability handling burst reads and burst writes. Figure 10. PCI interface pin connections Table 3. PCI bus commands supported by the RIVA 128 Bus master Bus slave Memory read and write Memory read and write Memory read line I/O read and write Memory read multiple Configuration read and write Memory read line Memory read multiple Memory write invalidate PCICBE[3:0]# PCIAD[31:0] PCIFRAME# 32 4 PCIDEVSEL# PCIIRDY# PCITRDY# PCISTOP# PCIIDSEL PCIREQ# PCIGNT# PCICLK PCIRST# PCIPAR PCIINTA# RIVA 128 |
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