DP8496 datasheet(2/92 Pages) NSC

2 / 92 page

Table of Contents

10 OVERVIEW

20 PIN DESCRIPTION

30 REGISTER LIST

31 Reset Summary

32 Initialization Registers

40 FUNCTIONAL DESCRIPTION

41 Processor Interface

411 Access by Different Type Processors

42 Buffer Memory Interface

421 Static RAM

422 Dynamic RAM

423 Data Transfer Timing

424 Pointers

425 Buffer Management

426 Processor Access to Buffer Memory

427 16-Bit Wide Access

428 Sequential Accesses of Buffer Memory

429 Parity

4210 Register Description

43 Disk Data Controller

431 Command Operation

432 Disk Command and Control Registers

433 Format Registers

434 Disk Operations

44 SCSI Interface

441 Simple SCSI Operations

442 SCSI Registers

443 SCSI Operations

45 Timer

451 Timer Register Descriptions

50 APPLICATION INFORMATION

BUFFER MEMORY

INTERFACING IN A FAST SCSI IMPLEMENTATION

60 DC SPECIFICATIONS

70 AC SPECIFICATIONS

71 Clock Timing

72 Register Read (Intel)

73 Register Write (Intel)

70 AC SPECIFICATIONS

(Continued)

74 Ready Pin

75 Mode Pin (Mot)

76 Register Read (Mot)

77 Register Write (Mot)

78 Interrupts

79 Buffer Memory Static Read

710 Buffer Memory Static Write

711 Buffer Memory Dynamic RAM ReadWrite

712 Buffer Memory DRAM Refresh

713 Disk Read Data Timing

714 Disk Write Data Timing

715 Disk Address Mark

716 SCSI Reset

717 SCSI Arbitration

718 SCSI Selection as Init (wo Arb)

719 SCSI Selection as Init (with Arb)

720 SCSI Reselection as Init

721 SCSI Selection (Targ)

722 SCSI Reselection (Targ)

723 SCSI Lost Arbitration

724 SCSI Abort (Re)Selection

725 SCSI Async Info In (Init)

726 SCSI Async Info In (Targ)

727 SCSI Async Info Out (Init)

728 SCSI Async Info Out (Targ)

729 SCSI Sync Info In (Init)

730 SCSI Sync Info In (Targ)

731 SCSI Sync Info Out (Init)

732 SCSI Sync Info Out (Targ)

733 SCSI Bus Free (Init)

734 SCSI Bus Free (Targ)

735 Differential Transceiver Direction Control

736 Direction Control for Target and Initiator

80 AC TEST CONDITIONS

90 PHYSICAL DIMENSIONS

DP8496 Datasheet(PDF) 2 Page - National Semiconductor (TI)

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