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UPD703108 Datasheet(PDF) 98 Page - NEC |
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UPD703108 Datasheet(HTML) 98 Page - NEC |
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98 / 99 page  CHAPTER 5 APPLICATION EXAMPLES Application Note U17121EJ1V1AN 98 dsc_tbl->transfer_address = BASE_ADDRESS_SDRAM; dsc_tbl->transfer_byte = 0x1000; // = 4096byte = 8Sector dsc_tbl->next_table_address = 0x00000001; // Last table *IDEREG_DSCTBL_START_ADDRESS = dsc_tbl; // Sets transfer direction of UltraDMA transfer. *IDEREG_BUSMASTER_START_STOP &= 0xFFFFFEFF; // Ultra DMA (PCI->IDE) // Buffer initialization InitBuffer((UBYTE*)dsc_tbl->transfer_address, 512*8); // Issues command of UltraDMA transfer. ATA_Write_DMA( 0, // Master Device 0, // LBA 0 8, // 8 Sector ); //////////////////////////////// // PCI<-IDE UltraDMA transfer // //////////////////////////////// // Sets descriptor table referenced by device during UltraDMA transfer. dsc_tbl->transfer_address = BASE_ADDRESS_SDRAM + 0x01000000; dsc_tbl->transfer_byte = 0x1000; // = 4096byte = 8Sector dsc_tbl->next_table_address = 0x00000001; // Last table *IDEREG_DSCTBL_START_ADDRESS = dsc_tbl; // Sets transfer direction of UltraDMA transfer. *IDEREG_BUSMASTER_START_STOP |= 0x00000100; // Ultra DMA (PCI<-IDE) // Issues command of UltraDMA transfer. ATA_Read_DMA( 0, // Master Device 0, // LBA 0 8, // 8 Sector ); status = memcmp( (UBYTE*)(BASE_ADDRESS_SDRAM), (UBYTE*)(BASE_ADDRESS_SDRAM+0x01000000), 512*8); if ( status != 0 ) { printf("Verify Error!: WRITE DMA, READ DMA\n"); } return 0; } |
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