Technical Manual
R c h 2 0 0
Trademark Acknowledgment
Audience
Organization
Ansi
Conventions Used in This Manual
PCI Special Interest Group
Revision Record
ViPreface
Contents
Chapter PCI Functional Description
Chapter Electrical Characteristics
Figures
Tables
IRDY/, TRDY/, DEVSEL/, STOP/, PERR/, PAR
Chapter General Description
TolerANT Technology
LSI53C810A Benefits Summary
Scsi Performance
Integration
PCI Performance
Ease of Use
Flexibility
Reliability
Testability
LSI53C810A System Diagram
LSI53C810A Chip Block Diagram
Chapter Functional Description
Scsi Core
Scripts Processor
DMA Core
Sdms Software The Total Scsi Solution
Prefetching Scripts Instructions
PCI Cache Mode
Opcode Fetch Burst Capability
Loopback Mode
Parity Options
Load and Store Instructions
2 3.3 V/5 V PCI Interface
Bits Used for Parity Control and Observation
BIt Name Location Description
Scsi Parity Errors and Interrupts
Scsi Parity Control
DMA Fifo
Data Paths
Synchronous Scsi Send
Asynchronous Scsi Send
Asynchronous Scsi Receive
Synchronous Scsi Receive
LSI53C810A Host Interface Data Paths
Terminator Networks
Scsi Bus Interface
Select/Reselect During Selection/Reselection
Active or Regulated Termination
Determining the Data Transfer Rate
Synchronous Operation
SCNTL3 Register, Bits 64 SCF20
Sxfer Register, Bits 75 TP20
SCNTL3 Register, Bits 20 CCF20
Achieving Optimal Scsi Send Rates
Interrupt Handling
Polling and Hardware Interrupts
Registers
Interrupt Handling
Fatal vs. Nonfatal Interrupts
Masking
Stacked Interrupts
Halting in an Orderly Fashion
Sample Interrupt Service Routine
Read Interrupt Status Istat
Functional Description
PCI Addressing
1 Configuration Space
2.1 I/O Read Command
PCI Bus Commands and Functions Supported
2.2 I/O Write Command
Support for PCI Cache Line Size Register
Alignment
Selection of Cache Line Size
Mmov Misalignment
Memory Write and Invalidate Command
Memory Read Line Command
Memory Read Multiple Command
Unsupported PCI Commands
PCI Bus Commands and Encoding Types
Configuration Registers
PCI Configuration Register Map
Register
Eper
WIE
EBM
EMS
EISEnable I/O Space0
Status Read/Write
DPE
SSE
RTA
DPRData Parity Reported8
Register 0x09
Register 0x08
RID
Latency Timer Read/Write LTLatency Timer70
Register 0x0C
Register 0x0D
Cache Line Size Read/Write
Register 0x0E
Register 0x10
Register 0x14
Barz
Register 0x3C
Register 0x3D
Interrupt Line Read/Write ILInterrupt Line70
Interrupt Pin Read Only IPInterrupt Pin70
Register 0x3E
Register 0x3F
MinGnt Read Only MGMinGnt70
MaxLat Read Only MLMaxLat70
PCI Functional Description
Chapter Signal Descriptions
LSI53C810A Pin Diagram
Signals are assigned a type. There are four signal types
Power and Ground Signals
Functional Signal Grouping
System Signals
PCI Bus Interface Signals
System Signals
Address and Data Signals
Address and Data Signals
Interface Control Signals
Interface Control Signals
Arbitration Signals
Error Reporting Signals
Arbitration Signals
Error Reporting Signals
Scsi Bus Interface Signals
Scsi Bus Interface Signals
Scsi Bus Interface Signals
Additional Interface Signals
Additional Interface Signals
MAC
Signal Descriptions
Chapter Operating Registers
Register 0x00
Scsi Control Zero SCNTL0 Read/Write
Simple Arbitration
ARB10 Arbitration Mode Bits 1
Full Arbitration, Selection/Reselection
Start Sequence
Start
Watn Select with SATN/ on a Start Sequence4
AAP
EPC
TRG
Register 0x01
EXC
ADB
DHP
CON
RST
Aesp
Iarb
SSTStart Scsi Transfer0
Register 0x03
Register 0x02
SDU
Reserved CCF20 Clock Conversion Factor
RRE
Register 0x04
SRE
Register 0x05
Reserved ENC20 Encoded LSI53C810A Chip Scsi ID
Scsi Transfer Sxfer Read/Write
TP20 Scsi Synchronous Transfer Period75
TP2 TP1 TP0 Xferp
Reserved MO30 Max Scsi Synchronous Offset
Sclk SCNTL3
Register 0x06
Scsi Synchronous Offset Values
Scsi Destination ID Sdid Read/Write
Reserved ENC20 Encoded destination Scsi ID
General Purpose Gpreg Read/Write
Register 0x07
Reserved GPIO10 General Purpose
Scsi First Byte Received Sfbr Read/Write
REQ
ACK
BSY
SEL
Register 0x0A 0x8A
Scsi Selector ID Ssid Read Only
VAL
Scsi Valid Bit
Register 0x0B 0x8B
Register 0x0C 0x8C
DFE
Mdpe
Abrt
SSI
Register 0x0D 0x8D
IID
ILF
ORF
OLF
AIP
LOA
WOA
Register 0x0E 0x8E
Scsi Status One SSTAT1 Read Only
FF30 Fifo Flags
Sdpl Latched Scsi Parity3
Scsi MSG/ Signal Scsi CD/ Signal Scsi IO/ Signal
Register 0x0F 0x8F
Scsi Status Two SSTAT2 Read Only
Ldsc
Registers 0x10-0x13
DSA
Sigp
Srst
SEM
Interrupt-on-the-Fly
Intf
Sipscsi Interrupt Pending1
Register 0x18
Dipdma Interrupt Pending0
Chip Test Zero CTEST0 Read/Write
FMTByte Empty in DMA FIFO70
Register 0x1A 0x9A
Register 0x19
Ddir
CIO
Teop
Dreq
Dack
FLF
Register 0x1B 0x9B
CLF
Registers 0x1C-0x1F 0x9C-0x9F
Register 0x20 0xA0
Temp
DMA Fifo Dfifo
Burst Disable
Register 0x21 0xA1
Chip Test Four CTEST4 Read/Write
Bdis
ZSD
Zmod
Srtm
Adck
Register 0x22 0xA2
Bbck
Register 0x23 0xA3
Masr
Chip Test Six CTEST6 Read/Write
Dfdma FIFO70
Registers 0x24-0x26 0xA4-0xA6
DMA Byte Counter DBC Read/Write
DBC
DMA Byte Counter 230
Register 0x27 0xA7
Registers 0x28-0x2B 0xA8-0xAB
Registers 0x2C-0x2F 0xAC-0xAF
Dnad
Registers 0x30-0x33 0xB0-0xB3
DMA Scripts Pointer Save Dsps Read/Write
Dsps
DMA Scripts Pointer Save 310
Register 0x38 0xB8
Registers 0x34-0x37 0xB4-0xB7
Scratcha
Source I/O Memory Enable
Destination I/O Memory Enable
ERLEnable Read Line3
Siom
Burst Opcode Fetch Enable
Ermp
BOF
MANManual Start Mode0
Register 0x39 0xB9
SIR
Register 0x3A 0xBA
Register 0x3B 0xBB
SSM
Irqm
STD
Irqd
Register 0x3C-0x3F 0xBC-0xBF
COM
Adder Sum Output Adder Read Only
Adder
Register 0x40 0xC0
CMP
RSL
SGE
Scsi Reset Condition
UDC
Unexpected Disconnect
PAR
Register 0x41 0xC1
STO
GEN
HTH
Initiator Mode Phase Mismatch Target Mode SATN/ Active
Register 0x42 0xC2
Scsi Interrupt Status Zero SIST0 Read Only
CMPFunction Complete6
Transfer Sxfer register
Parity Error
Register 0x43 0xC3
Scsi RST/ Received
Scsi Interrupt Status One SIST1 Read Only
Handshake-to-Handshake Timer Expired
Register 0x44 0xC4
Scsi Longitudinal Parity Slpar Read/Write
Slpar Scsi Longitudinal Parity70
Register 0x46 0xC6
Memory Access Control Macntl Read/Write
TYP30 Chip Type
Register 0x47 0xC7
DWR
DRD
Pscpt
Scsi Timer Zero STIME0 Read/Write
HTH30 Handshake-to-Handshake Timer Period
Register 0x48 0xC8
GPIO0EN
Scsi Timer One STIME1 Read/Write
Reserved GEN30 General Purpose Timer Period
Register 0x49 0xC9
SELSelection Time-Out30
Register 0x4A 0xCA
Response ID Respid Read/Write Respid Response ID70
Register 0x4C 0xCC
Ssaid
SLT
ART
Sclk
Register 0x4D 0xCD
Siso
Register 0x4E 0xCE
SCE
ROF
SLB
EXT
Register 0x4F 0xCF
LOW
STR
HSC
DSI
TTM
Register 0x50 0xD0
Stwscsi Fifo Test Write0
Scsi Input Data Latch Sidl Read Only
Sidlscsi Input Data Latch150
Registers 0x54 0xD4
Registers 0x58 0xD8
Low Level Register Interface Mode
Chapter Instruction Set Processor
Scsi Scripts
Sample Operation
Scripts Instructions
Instruction Set of the I/O Processor
Block Move Instructions
Scripts Overview
IT10 Instruction Type Block Move 3130 Indirect Addressing
First Dword
Direct Addressing
TIA
Table Indirect Addressing
Block Move Instruction Register
OpCode
Initiator Mode
SCSIP20 Scsi Phase2624
TC230 Transfer Counter230
Second Dword
Start Address 310
I/O Instruction
IT10 Instruction Type I/O Instruction 3130 OPC20 OpCode 2927
Reselect Instruction
Disconnect Instruction
Wait Select Instruction
Set Instruction
I/O Instruction Register
Clear Instruction
Select Instruction
Wait Disconnect Instruction
Wait Reselect Instruction
Relative Addressing Mode
TITable Indirect Mode25
Table Indirect
Direct
Relative
Endid
Set/Clear Satn
Set/Clear Sack
SAStart Address310
Read/Write Instructions
Read-Modify-Write Cycles
Move To/From Sfbr Cycles
Read/Write Register Instruction
Read/Write Instructions
Byte Received Sfbr
Transfer Control Instructions
Jump Instruction
Call Instruction
Return Instruction
Instruction Type Transfer Control
Interrupt Instruction
Interrupt on-the-Fly Instruction
Jump/Call an Absolute Address
RARelative Addressing Mode23
Jump/Call a Relative Address
JMP
Jump If True/False
WVP
DCM
Jump Address 310
Memory Move Instructions
Memory to Memory Move Instruction
Third Dword
No Flush
TC230 Transfer Count
Temp Register 310
Load and Store Instructions
Read/Write System Memory from a Scripts Instruction
DSA Relative
IT20 Instruction Type 3129
Reserved 2726 No Flush Store instruction only
This bit has no effect unless the Prefetch Enable bit
DMA Control Dcntl register is set. For information on
Scripts instruction prefetching, see , Func
Memory/IO Address / DSA Offset 310
Load and Store Instruction Format
Chapter Electrical Characteristics
DC Characteristics
Absolute Maximum Stress Ratings
Operating Conditions
Scsi Signals-SMSG, SIO/, SCD/, SATN/, SBSY/, SSEL/, Srst
Scsi Signals-SD70/, SDP/, SREQ/, Sack
Input Signals-CLK, SCLK, GNT/, IDSEL, RST/, Testin
Output Signal-IRQ
Output Signals-MAC/TESTOUT, REQ
Capacitance
10 Bidirectional Signals-AD310, CBE/30, FRAME/, IRDY/, Trdy
DEVSEL/, STOP/, PERR/, PAR
11 Bidirectional Signals-GPIO0FETCH/, GPIO1MASTER
12 TolerANT Technology Electrical Characteristics
Pqfp
Rise and Fall Time Test Conditions
Input Current as a Function of Input Voltage
AC Characteristics
Clock Timing
Reset Input
14 Reset Input Timing
Interrupt Output
Target Timing
PCI Interface Timing Diagrams
Initiator Timing
PCI Configuration Register Read
10 PCI Configuration Register Write
11 Target Read
12 Target Write
13 OpCode Fetch, Nonburst
14 Burst Opcode Fetch
15 Back-to-Back Read
16 Back-to-Back Write
This page intentionally left blank
17 Burst Read
OutIn
18 Burst Write
AD Driven by LSI53C810A CBE/ Driven by LSI53C810A
PCI Interface Timing
PCI Timing
Scsi Timings
17 Initiator Asynchronous Send 5 Mbytes/s
18 Initiator Asynchronous Receive 5 Mbytes/s
20 Initiator Asynchronous Receive
19 Target Asynchronous Send 5 Mbytes/s
21 Target Asynchronous Send
20 Target Asynchronous Receive 5 Mbytes/s
22 Target Asynchronous Receive
21 SCSI-1 Transfers SE, 5.0 Mbytes/s
Symbol Parameter Min Max Unit
Package Drawings
Package Drawings
24 100 LD Pqfp UD Mechanical Drawing Sheet 1
24 100 LD Pqfp UD Mechanical Drawing Sheet 2
Electrical Characteristics
Appendix a Register Summary
Table A.2 Scsi Registers
Register Summary
Table A.2 Scsi Registers
Symbols
Numerics
IX-2Index
Index
IX-4Index
IX-5
IX-6Index
IX-7
IX-8Index
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