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DP8496 Datasheet(PDF) 9 Page - National Semiconductor (TI) |
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DP8496 Datasheet(HTML) 9 Page - National Semiconductor (TI) |
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9 / 92 page  30 Register List DISK DATA CONTROLLER REGISTERS Addr Name Label RW Pg 00 – 06 ECC Shift Registers 0 – 6 ESRx R 29 07 ECC Control EC RW 28 08 – 0F Reserved 10 Disk Command DCMD W 23 11 Disk Control DCTL RW 25 12 Disk Interrupt DINT RW 27 13 Disk Interrupt Enable DINTE RW 27 14 Disk Status DSTAT R 26 15 Sector Number SN RW 28 16 Header Byte CountInterlock HBC RW 28 17 Sector Count SC RW 28 18 ECC Byte Count (Low) ECCL R 29 19 ECC Byte Count (High) ECCH R 29 1A – 1F Reserved DISK FORMAT REGISTERS Addr Name Label RW Pg 20 Post SectorIndex Count PSIG RW 29 21 Header Preamble Count HPC RW 29 22 Preamble Pattern PREP RW 30 23 Header Synch 1 2 Counts HSC RW 30 24 Header Synch 1 Pattern HSP1 RW 30 25 Header Synch 2 Pattern HSP2 RW 30 26 Header Byte 0 1 Control HC01 RW 30 27 Header Byte 0 Pattern HP0 RW 31 28 Header Byte 1 Pattern HP1 RW 31 29 Header Byte 2 3 Control HC23 RW 31 2A Header Byte 2 Pattern HP2 RW 31 2B Header Byte 3 Pattern HP3 RW 31 2C Header Byte 4 5 Control HC45 RW 31 2D Header Byte 4 Pattern HP4 RW 31 2E Header Byte 5 Pattern HP5 RW 31 2F Header ECC Postamble HECC RW 31 Count 30 Postamble Pattern POSTP RW 31 31 Data Preamble Count DPC RW 31 32 Data Synch 1 2 Count DSC RW 31 33 Data Synch 1 Pattern DSP1 RW 32 34 Data Synch 2 Pattern DSP2 RW 32 35 Sector Byte Count (Low) SBCL RW 32 36 Sector Byte Count (High) SBCH RW 32 37 Data Format Pattern DFP RW 32 38 Data ECC Postamble DECC RW 32 Count 39 Gap 3 Byte Count GAPC RW 32 3A Gap 3 PSIG Pattern GAPP RW 32 3B – 3F Reserved SCSI REGISTERS Addr Name Label RW Pg 40 SCSI Command SCMD W 39 41 SCSI Data SDAT RW 53 42 SCSI Control SCTL RW 53 43 SCSI Operation SOP RW 53 44 Synchronous Transfer SYNC RW 54 45 Identify IDENT RW 55 46 Destination ID DID RW 56 47 Source ID SID RW 56 48 SCSI Status SSTAT R 56 49 SCSI Interrupt SINT R 57 4A SCSI Interrupt Enable SINTE RW 60 4B SCSI Block Count SBC RW 60 4C SCSI Block Size (MSB) SBSH RW 60 4D SCSI Block Size (LSB) SBSL RW 60 4E Differential SCSI 1 SDIF1 RW 60 4F Differential SCSI 2 SDIF2 RW 60 50 – 5F Reserved SETUP AND TIMER REGISTERS Addr Name Label RW Pg 60 Setup 1 SUP1 RW 10 61 Setup 2 SUP2 RW 11 62 Setup 3 SUP3 RW 12 63 Timer Prescale TPRE RW 64 64 Timer Count TCNT RW 64 BUFFER MEMORY REGISTERS Addr Name Label RW Pg 65 Disk Pointer (MSB) DP2 RW 19 66 Disk Pointer DP1 RW 19 67 Disk Pointer (LSB) DP0 RW 19 68 SCSI Pointer (MSB) SP2 RW 19 69 SCSI Pointer SP1 RW 19 6A SCSI Pointer (LSB) SP0 RW 19 6B Processor Pointer (MSB) PP2 RW 19 6C Processor Pointer PP1 RW 19 6D Processor Pointer (LSB) PP0 RW 19 6E Buffer Memory Data BMD RW 19 6F – 7F Reserved 9 |
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