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Datenblatt-Suchmaschine für elektronische Bauteile |
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Datenblatt-Suchmaschine für elektronische Bauteile |
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AM79C975VCW Datenblatt(PDF) 222 Page - Advanced Micro Devices |
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AM79C975VCW Datenblatt(HTML) 222 Page - Advanced Micro Devices |
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222 / 304 page  222 Am79C973/Am79C975 P R E L I M INARY Am79C973/Am79C975 Bus Configuration Registers RAP Addr Register Contents 0 MSRDA Programs width of DMA read signal (DEFAULT = 5) 1 MSWRA Programs width of DMA write signal (DEFAULT = 5) 2 MC Miscellaneous Configuration bits: (DEFAULT = 2) 8000 -- 4000 -- 2000 -- 1000 -- 0800 -- 0400 -- 0200 -- 0100 APROMWE 0080 INITLEVEL 0040 -- 0020 -- 0010 -- 0008 EADISEL 0004 -- 0002 ASEL 0001 -- 4 LED0 Programs the function and width of the LED0 signal. (DEFAULT = 00C0) 8000 LEDOUT 4000 LEDPOL 2000 LEDDIS 1000 100E 0800 -- 0400 -- 0200 MPSE 0100 FDLSE 0080 PSE 0040 LNKSE 0020 RCVME 0010 XMTE 0008 -- 0004 RCVE 0002 -- 0001 COLE 5 LED1 Programs the function and width of the LED1 signal. (DEFAULT = 0084) 8000 LEDOUT 4000 LEDPOL 2000 LEDDIS 1000 100E 0800 -- 0400 -- 0200 MPSE 0100 FDLSE 0080 PSE 0040 LNKSE 0020 RCVME 0010 XMTE 0008 -- 0004 RCVE 0002 -- 0001 COLE 6 LED2 Programs the function and width of the LED2 signal. (DEFAULT = 0088) 8000 LEDOUT 4000 LEDPOL 2000 LEDDIS 1000 100E 0800 -- 0400 -- 0200 MPSE 0100 FDLSE 0080 PSE 0040 LNKSE 0020 RCVME 0010 XMTE 0008 -- 0004 RCVE 0002 -- 0001 COLE 7 LED3 Programs the function and width of the LED3 signal. (DEFAULT = 0090) 8000 LEDOUT 4000 LEDPOL 2000 LEDDIS 1000 100E 0800 -- 0400 -- 0200 MPSE 0100 FDLSE 0080 PSE 0040 LNKSE 0020 RCVME 0010 XMTE 0008 -- 0004 RCVE 0002 -- 0001 COLE 9 FDC Full-Duplex Control. (DEFAULT= 0000) 8000 -- 4000 -- 2000 -- 1000 -- 0800 -- 0400 -- 0200 -- 0100 -- 0080 -- 0040 -- 0020 -- 0010 -- 0008 -- 0004 FDRPAD 0002 -- 0001 FDEN 16 IOBASEL I/O Base Address Lower 17 IOBASEU I/O Base Address Upper 18 BSBC Burst Size and Bus Control (DEFAULT = 2101) 8000 ROMTMG3 4000 ROMTMG2 2000 ROMTMG1 1000 ROMTMG0 0800 NOUFLO 0400 -- 0200 MEMCMD 0100 EXTREQ 0080 DWIO 0040 BREADE 0020 BWRITE 0010 -- 0008 -- 0004 -- 0002 -- 0001 -- 19 EECAS EEPROM Control and Status (DEFAULT = 0002) 8000 PVALID 4000 PREAD 2000 EEDET 1000 -- 0800 -- 0400 -- 0200 -- 0100 -- 0080 -- 0040 -- 0020 -- 0010 EEN 0008 -- 0004 ECS 0002 ESK 0001 EDI/EDO 20 SWSTYLE Software Style (DEFAULT = 0000, maps to CSR 58) |
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