Main
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Preface
(SCSI-3 Parallel Interface)
SCSI Bench Reference, SCSI Encyclopedia, SCSI Tutor
SCSI: Understanding the Small Computer System Interface
SCSI SCRIPTS Processors Programming Guide,
assert
deassert
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Contents
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Chapter 1 General Description
1.1 TolerANTTechnology
1.2 LSI53C810A Benets Summary
1.2.1 SCSI Performance
1.2.2 PCI Performance
1.2.3 Integration
1.2.4 Ease of Use
1.2.5 Flexibility
1.2.6 Reliability
1.2.7 Testability
LSI53C810A Benets Summary 1-7
Figure 1.1 LSI53C810A System Diagram
1-8 General Description
Figure 1.2 LSI53C810A Chip Block Diagram
Chapter 2 Functional Description
2.1 SCSI Core
2.1.1 DMA Core
2.2 SCRIPTS Processor
2.2.1 SDMS Software: The Total SCSI Solution
2.3 Prefetching SCRIPTS Instructions
2.3.1 Opcode Fetch Burst Capability
2.4 PCI Cache Mode
2.4.1 Load and Store Instructions
2.4.2 3.3 V/5 V PCI Interface
2.4.3 Loopback Mode
SCSI SCRIPTS Processors Programming Guide
2.5 Parity Options
2-6 Functional Description
Table 2.1 Bits Used for Parity Control and Observation
Parity Options 2-7
Table 2.2 SCSI Parity Control
Table 2.3 SCSI Parity Errors and Interrupts
2.5.1 DMA FIFO
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2.6 SCSI Bus Interface
2.6.1 TerminatorNetworks
2.6.2 Select/Reselect During Selection/Reselection
2-12 Functional Description
2.6.3 Synchronous Operation
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Interrupt Handling 2-15
Figure 2.4 Determining the Synchronous TransferRate
2.7 Interrupt Handling
2.7.1 Polling and Hardware Interrupts
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Chapter 3 PCI Functional Description
3.1 PCI Addressing
3.1.1 Conguration Space
3.1.2 PCI Bus Commands and Functions Supported
3.2 PCI Cache Mode
3.2.1 Support for PCI Cache Line Size Register
3.2.2 Selection of Cache Line Size
3.2.3 Alignment
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3.2.4 Memory Read Multiple Command
3.2.5 Unsupported PCI Commands
3.3 Conguration Registers
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Register: 0x00
Register: 0x02
Register: 0x04
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Register: 0x06
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Register: 0x08
Register: 0x09
Register: 0x0C
Register: 0x0D
Register: 0x0E
Register: 0x10
Register: 0x14
Register: 0x3C
Register: 0x3D
Register: 0x3E
Register: 0x3F
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4-2 Signal Descriptions
Figure 4.1 LSI53C810A Pin Diagram
Quad Flat Pack
LSI53C810A 100-pin
4-3
Signals are assigned a type. There are four signal types:
Table4.1 describes the Power and Ground Signals group.
Table 4.1 Power and Ground Signals
4-4 Signal Descriptions
Figure 4.2 Functional Signal Grouping
4.1 PCI Bus Interface Signals
4.1.1 System Signals
4-6 Signal Descriptions
4.1.2 Address and Data Signals
Table4.3 describes the Address and Data Signals group. Table 4.3 Address and Data Signals
PCI Bus Interface Signals 4-7
4.1.3 Interface Control Signals
Table4.4 describes the Interface Control Signals group. Table 4.4 Interface Control Signals
4.1.4 Arbitration Signals
4.1.5 Error Reporting Signals
SCSI Bus Interface Signals 4-9
4.2 SCSI Bus Interface Signals
4.2.1 SCSI Bus Interface Signals
Table4.7 describes the SCSI Bus Interface Signals group. Table 4.7 SCSI Bus Interface Signals
4-10 Signal Descriptions
4.2.2 Additional Interface Signals
Table4.8 describes the Additional Interface Signals group. Table 4.8 Additional Interface Signals
SCSI Bus Interface Signals 4-11
Table 4.8 Additional Interface Signals (Cont.)
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Chapter 5 Operating Registers
5-2 Operating Registers
Figure 5.1 Register Address Map
Register: 0x00 (0x80)
SCSI Control Zero (SCNTL0) Read/Write
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Register: 0x01 (0x81)
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Register: 0x02 (0x82)
Register: 0x03 (0x83)
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Register: 0x04 (0x84)
Register: 0x05 (0x85)
5-13
Table 5.3 Examplesof Synchronous Transfer Periods and Rates for SCSI-1
5-14 Operating Registers
Table 5.3 Examplesof Synchronous Transfer Periods and Rates for SCSI-1 (Cont.)
Table 5.4 Examplesof Synchronous Transfer Periods and Rates for Fast SCSI
Register: 0x06 (0x86)
Register: 0x07 (0x87)
Register: 0x08 (0x88)
Register: 0x09 (0x89)
Register: 0x0A (0x8A)
Register: 0x0B (0x8B)
Register: 0x0C (0x8C)
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Register: 0x0D (0x8D)
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Register: 0x0E (0x8E)
Register: 0x0F (0x8F)
Registers:0x100x13 (0x900x93)
Register: 0x14 (0x94)
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Register: 0x18 (0x98)
Register: 0x19 (0x99)
Register: 0x1A (0x9A)
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Register: 0x1B (0x9B)
Registers:0x1C0x1F (0x9C0x9F)
Register: 0x20 (0xA0)
Register: 0x21 (0xA1)
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Register: 0x22 (0xA2)
Register: 0x23 (0xA3)
Registers:0x240x26 (0xA40xA6)
Register: 0x27 (0xA7)
Registers:0x280x2B (0xA80xAB)
Registers:0x2C0x2F (0xAC0xAF)
Registers:0x300x33 (0xB00xB3)
Registers:0x340x37 (0xB40xB7)
Register: 0x38 (0xB8)
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Register: 0x39 (0xB9)
Register: 0x3A (0xBA)
Register: 0x3B (0xBB)
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Register: 0x3C0x3F (0xBC0xBF)
Register: 0x40 (0xC0)
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Register: 0x41 (0xC1)
Register: 0x42 (0xC2)
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Register: 0x43 (0xC3)
Register: 0x44 (0xC4)
Register: 0x46 (0xC6)
Register: 0x47 (0xC7)
Register: 0x48 (0xC8)
Register: 0x49 (0xC9)
Register: 0x4A (0xCA)
Register: 0x4C (0xCC)
Register: 0x4D (0xCD)
Register: 0x4E (0xCE)
Register: 0x4F (0xCF)
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Register: 0x50 (0xD0)
Registers:0x54 (0xD4)
Registers:0x58 (0xD8)
Chapter 6 Instruction Set of the I/O Processor
6.1 Low Level Register Interface Mode
6.2 SCSI SCRIPTS
6.2.1 Sample Operation
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6.3 Block Move Instructions
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6.3.1 First Dword
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6.3.2 Second Dword
6.4 I/O Instruction
6.4.1 First Dword
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6-16 Instruction Set of the I/O Processor
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6.4.2 Second Dword
6.5 Read/Write Instructions
6.5.1 First Dword
6.5.2 Second Dword
6.5.3 Read-Modify-Write Cycles
6.5.4 Move To/From SFBR Cycles
Read/Write Instructions 6-25
6-26 Instruction Set of the I/O Processor
Table 6.2 Read/Write Instructions
6.6 Transfer Control Instructions
6.6.1 First Dword
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6-30 Instruction Set of the I/O Processor
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6.7 Memory Move Instructions
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6.7.1 First Dword
6.7.2 Second Dword
6.7.3 Third Dword
6.7.4 Read/Write System Memory from a SCRIPTS Instruction
6.8 Load and Store Instructions
6.8.1 First Dword
6.8.2 Second Dword
6-42 Instruction Set of the I/O Processor
Chapter 7 Electrical Characteristics
7.1 DC Characteristics
7-2 Electrical Characteristics
Table 7.1 Absolute Maximum Stress Ratings
Table 7.2 Operating Conditions
Table 7.3 SCSI SignalsSD[7:0]/, SDP/, SREQ/, SACK/
Table 7.4 SCSI SignalsSMSG, SI_O/, SC_D/, SATN/, SBSY/, SSEL/, SRST/
Table 7.5 Input SignalsCLK, SCLK, GNT/, IDSEL, RST/, TESTIN
7-4 Electrical Characteristics
Table 7.6 Capacitance
Table 7.7 Output SignalsMAC/_TESTOUT,REQ/
Table 7.8 Output SignalIRQ/
DC Characteristics 7-5
Table 7.9 Output SignalSERR/
7.2 TolerANT Technology
TolerANTTechnology 7-7
Table 7.12 TolerANT TechnologyElectrical Characteristics
7-8 Electrical Characteristics
Figure 7.1 Rise and Fall Time Test Conditions
Figure 7.2 SCSI Input Filtering
Figure 7.3 Hysteresis of SCSI Receiver
TolerANTTechnology 7-9
Figure 7.4 Input Current as a Function of Input Voltage
Figure 7.5 Output Current as a Function of Output Voltage
7-10 Electrical Characteristics
7.3 AC Characteristics
Figure 7.6 Clock Timing
Table 7.13 Clock Timing
AC Characteristics 7-11
Table7.14 and Figure 7.7 provide reset input timing data.
Figure 7.7 Reset Input
Figure 7.8 Interrupt Output Waveforms
Table7.15 and Figure 7.8 provide interrupt output timing data.
Table 7.14 ResetInput Timing
7.4 PCI Interface Timing Diagrams
Target Timing
Initiator Timing
PCI Interface Timing Diagrams 7-13
7.4.1 Target Timing
Figure 7.9 through Figure 7.12 describe target timing. Figure 7.9 PCI Conguration Register Read
7-14 Electrical Characteristics
Figure 7.10 PCI Conguration Register Write
PCI Interface Timing Diagrams 7-15
Figure 7.11 Target Read
7-16 Electrical Characteristics
Figure 7.12 Target Write
PCI Interface Timing Diagrams 7-17
7.4.2 Initiator Timing
Figure 7.13 through Figure 7.18 describe initiator timing. Figure 7.13 OpCodeFetch, Nonburst
7-18 Electrical Characteristics
Figure 7.14 Burst Opcode Fetch
PCI Interface Timing Diagrams 7-19
Figure 7.15 Back-to-Back Read
7-20 Electrical Characteristics
Figure 7.16 Back-to-Back Write
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7-22 Electrical Characteristics
Figure 7.17 Burst Read
PCI Interface Timing Diagrams 7-23
Figure 7.17 Burst Read (Cont.)
7-24 Electrical Characteristics
Figure 7.18 Burst Write
PCI Interface Timing Diagrams 7-25
Figure 7.18 Burst Write (Cont.)
7-26 Electrical Characteristics
7.5 PCI Interface Timing
Table7.16 describes the PCI timing data for the LSI53C810A. Table 7.16 PCI Timing
SCSI Timings 7-27
7.6 SCSI Timings
Tables7.17 through 7.23 and Figures 7.19 through 7.23 describe the LSI53C810A SCSI timing data.
Figure 7.19 Initiator Asynchronous Send
Table 7.17 Initiator Asynchronous Send (5 Mbytes/s)
Figure 7.20 Initiator Asynchronous Receive
7-28 Electrical Characteristics
Table 7.18 Initiator Asynchronous Receive (5 Mbytes/s)
Figure 7.21 Target Asynchronous Send
SCSI Timings 7-29
Table 7.19 Target AsynchronousSend (5 Mbytes/s)
7-30 Electrical Characteristics
Figure 7.22 Target Asynchronous Receive
Figure 7.23 Initiator and TargetSynchronous Transfers
Table 7.20 Target AsynchronousReceive (5 Mbytes/s)
SCSI Timings 7-31
Table 7.21 SCSI-1 Transfers (SE, 5.0 Mbytes/s)
Table 7.22 SCSI-2 Fast Transfers(10.0 Mbytes/s (8-Bit Transfers), 40 MHz Clock)
7-32 Electrical Characteristics
Table 7.23 SCSI-2 Fast Transfers(10.0 Mbytes/s (8-Bit Transfers), 50 MHz Clock)
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LSI53C810A PCI to SCSI I/O Processor A-1
Appendix A Register Summary
A-2 Register Summary
TableA.2 lists the LSI53C810A SCSI registers by register name. TableA.2 SCSI Registers
Register Summary A-3
TableA.2 SCSI Registers
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LSI53C810A PCI to SCSI I/O Processor IX-1
Index
Symbols
Numerics
A
B
D
E
F
G
H
I
L
M
N
O
P
R
Index IX-5
IX-6 Index
S
Index IX-7
IX-8 Index
T
U
V
W
Z
Customer Feedback
LSI53C810A PCI to SCSI I/O Processor TechnicalManual.
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