PI7C9X110
PCI Express-to-PCI
Reversible Bridge
DATASHEET
Revision 4.3
May 2017
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PI7C9X110
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PI7C9X110
REVISION HISTORY
DATE
09/08/2006
11/21/2006
03/06/2007
05/02/2007
REVISION #
2.0
2.1
2.2
2.3
DESCRIPTION
First release of 9X110 datasheet without revision suffix
Removed references to PI7C9X110A
Revised ESD ratings in “DC Specifications” section 16.2
Revised table 8-1 in section 8
Address bit[5] corrected to equal 0
Address bit[4] corrected to equal GPIO[3]
Revised logos and font types and added Industrial Temp Compliancy
Revised Industrial Temp Compliancy
Revised Minimum PCI Frequency Support to 10MHz
Added Leaded Part Number – PI7C9X110BNB
Added additional pin description to GPIO [3:0]
Revised Ordering Info Section for Leaded Part
Revised Revision ID Register definition
Updated the pin description of PCI Express Signals
PCIX Feature is removed from Datasheets
Updated Section 17 Package Information
Updated Section 1 Introduction
Updated Section 2.2 PCI Express Signals
Updated Section 7.4.38 Express Transmitter/Receiver Register – Offset 68H (bit[5:2])
Updated Section 7.5.41 Express Transmitter/Receiver Register – Offset 68H (bit[5:2])
Updated Section 7.4 PCI Configuration Registers For Transparent Bridge Mode
Updated Section 7.5 PCI Configuration Registers For Non-Transparent Bridge Mode
Updated Section 7.4 PCI Configuration Registers For Transparent Bridge Mode
Updated Section 7.5 PCI Configuration Registers For Non-Transparent Bridge Mode
Updated Section 2.5 JTAG Boundary Scan Signals
Updated Section 16.1 Absolute Maximum ratings
Updated Table 16-2 DC Electrical Characteristics
Added Table 16-4 PCI Express Interface - Differential Transmitter (TX) Output Characteristics
Added Table 16-5 PCI Express Interface - Differential Receiver (RX) Input Characteristics
Added Section 16.4 Operating Ambient Temperature
Added Table 16-4 PCIe Reference Clock Timing Parameters
11/02/2007
01/03/2008
05/16/2008
09/25/2008
08/21/2009
09/14/2009
10/10/2009
04/28/2010
03/22/2011
04/27/2011
12/07/2011
02/16/2015
04/15/2015
04/21/2016
05/12/2017
2.4
2.5
2.6
2.6
2.7
2.8
2.9
3.0
3.1
3.2
3.3
4.0
4.1
4.2
4.3
PREFACE
The datasheet of PI7C9X110 will be enhanced periodically when updated information is available. The technical
information in this datasheet is subject to change without notice. This document describes the functionalities of
PI7C9X110 (PCI Express Bridge) and provides technical information for designers to design their hardware using
PI7C9X110.
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PI7C9X110
TABLE OF CONTENTS
1
INTRODUCTION ........................................................................................................................ 14
1.1
1.2
1.3
2
2.1
2.2
2.3
2.4
2.5
2.6
2.7
2.8
3
3.1
3.2
4
5
PCI EXPRESS FEATURES ................................................................................................... 14
PCI FEATURES ..................................................................................................................... 15
GENERAL FEATURES ......................................................................................................... 15
SIGNAL TYPES ..................................................................................................................... 16
PCI EXPRESS SIGNALS ...................................................................................................... 16
PCI SIGNALS ........................................................................................................................ 16
MODE SELECT AND STRAPPING SIGNALS ................................................................... 18
JTAG BOUNDARY SCAN SIGNALS .................................................................................. 18
MISCELLANEOUS SIGNALS ............................................................................................. 18
POWER AND GROUND PINS ............................................................................................. 19
PIN ASSIGNMENTS ............................................................................................................. 20
FUNCTIONAL MODE SELECTION .................................................................................... 21
PIN STRAPPING ................................................................................................................... 21
PIN DEFINITIONS ...................................................................................................................... 16
MODE SELECTION AND PIN STRAPPING .......................................................................... 21
FORWARD AND REVERSE BRIDGING ................................................................................ 22
TRANSPARENT AND NON-TRANSPARENT BRIDGING .................................................. 24
5.1
5.2
TRANSPARENT MODE ....................................................................................................... 24
NON-TRANSPARENT MODE ............................................................................................. 24
TLP STRUCTURE ................................................................................................................. 26
VIRTUAL ISOCHRONOUS OPERATION .......................................................................... 26
CONFIGURATION REGISTER MAP .................................................................................. 27
PCI EXPRESS EXTENDED CAPABILITY REGISTER MAP ............................................ 30
CONTROL AND STATUS REGISTER MAP ....................................................................... 31
PCI CONFIGURATION REGISTERS FOR TRANSPARENT BRIDGE MODE ................ 33
VENDOR ID – OFFSET 00h ................................................................................................................ 33
DEVICE ID – OFFSET 00h .................................................................................................................. 33
COMMAND REGISTER – OFFSET 04h .............................................................................................. 33
PRIMARY STATUS REGISTER – OFFSET 04h ................................................................................... 34
REVISION ID REGISTER – OFFSET 08h ........................................................................................... 35
CLASS CODE REGISTER – OFFSET 08h ........................................................................................... 35
CACHE LINE SIZE REGISTER – OFFSET 0Ch .................................................................................. 36
PRIMARY LATENCY TIMER REGISTER – OFFSET 0Ch .................................................................. 36
PRIMARY HEADER TYPE REGISTER – OFFSET 0Ch ...................................................................... 36
RESERVED REGISTERS – OFFSET 10h TO 17h ................................................................................ 36
PRIMARY BUS NUMBER REGISTER – OFFSET 18h ........................................................................ 36
6
PCI EXPRESS FUNCTIONAL OVERVIEW ........................................................................... 26
6.1
6.2
7
CONFIGURATION REGISTERS.............................................................................................. 27
7.1
7.2
7.3
7.4
7.4.1
7.4.2
7.4.3
7.4.4
7.4.5
7.4.6
7.4.7
7.4.8
7.4.9
7.4.10
7.4.11
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7.4.12
7.4.13
7.4.14
7.4.15
7.4.16
7.4.17
7.4.18
7.4.19
7.4.20
7.4.21
7.4.22
7.4.23
7.4.24
7.4.25
7.4.26
7.4.27
7.4.28
7.4.29
7.4.30
7.4.31
7.4.32
7.4.33
7.4.34
7.4.35
7.4.36
7.4.37
7.4.38
7.4.39
7.4.40
7.4.41
7.4.42
7.4.43
7.4.44
7.4.45
7.4.46
7.4.47
7.4.48
7.4.49
7.4.50
7.4.51
7.4.52
7.4.53
7.4.54
7.4.55
7.4.56
7.4.57
7.4.58
7.4.59
7.4.60
7.4.61
7.4.62
7.4.63
7.4.64
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SECONDARY BUS NUMBER REGISTER – OFFSET 18h .................................................................. 36
SUBORDINATE BUS NUMBER REGISTER – OFFSET 18h .............................................................. 36
SECONDARY LATENCY TIME REGISTER – OFFSET 18h................................................................ 37
I/O BASE REGISTER – OFFSET 1Ch .................................................................................................. 37
I/O LIMIT REGISTER – OFFSET 1Ch ................................................................................................. 37
SECONDARY STATUS REGISTER – OFFSET 1Ch ............................................................................ 37
MEMORY BASE REGISTER – OFFSET 20h ....................................................................................... 38
MEMORY LIMIT REGISTER – OFFSET 20h ...................................................................................... 38
PREFETCHABLE MEMORY BASE REGISTER – OFFSET 24h ......................................................... 39
PREFETCHABLE MEMORY LIMIT REGISTER – OFFSET 24h ........................................................ 39
PREFETCHABLE BASE UPPER 32-BIT REGISTER – OFFSET 28h................................................. 39
PREFETCHABLE LIMIT UPPER 32-BIT REGISTER – OFFSET 2Ch ............................................... 39
I/O BASE UPPER 16-BIT REGISTER – OFFSET 30h ......................................................................... 39
I/O LIMIT UPPER 16-BIT REGISTER – OFFSET 30h........................................................................ 39
CAPABILITY POINTER – OFFSET 34h .............................................................................................. 39
EXPANSION ROM BASE ADDRESS REGISTER – OFFSET 38h ....................................................... 40
INTERRUPT LINE REGISTER – OFFSET 3Ch ................................................................................... 40
INTERRUPT PIN REGISTER – OFFSET 3Ch ..................................................................................... 40
BRIDGE CONTROL REGISTER – OFFSET 3Ch ................................................................................ 40
PCI DATA BUFFERING CONTROL REGISTER – OFFSET 40h ....................................................... 41
CHIP CONTROL 0 REGISTER – OFFSET 40h ................................................................................... 43
RESERVED REGISTER – OFFSET 44h............................................................................................... 44
ARBITER ENABLE REGISTER – OFFSET 48h ................................................................................... 44
ARBITER MODE REGISTER – OFFSET 48h ...................................................................................... 45
ARBITER PRIORITY REGISTER – OFFSET 48h ................................................................................ 45
RESERVED REGISTERS – OFFSET 4Ch – 64h .................................................................................. 46
EXPRESS TRANSMITTER/RECEIVER REGISTER – OFFSET 68h .................................................... 46
UPSTREAM MEMORY WRITE FRAGMENT CONTROL REGISTER – OFFSET 68h ....................... 47
RESERVED REGISTER – OFFSET 6Ch .............................................................................................. 47
EEPROM AUTOLOAD CONTROL/STATUS REGISTER – OFFSET 70h ........................................... 47
RESERVED REGISTER – OFFSET 74h............................................................................................... 48
GPIO DATA AND CONTROL REGISTER – OFFSET 78h .................................................................. 48
RESERVED REGISTER – OFFSET 7Ch .............................................................................................. 48
CAPABILITY ID REGISTER – OFFSET 80h ....................................................................................... 48
NEXT CAPABILITY POINTER REGISTER – OFFSET 80h ................................................................ 49
SECONDARY STATUS REGISTER – OFFSET 80h ............................................................................. 49
BRIDGE STATUS REGISTER – OFFSET 84h ..................................................................................... 49
UPSTREAM SPLIT TRANSACTION REGISTER – OFFSET 88h ........................................................ 51
DOWNSTREAM SPLIT TRANSACTION REGISTER – OFFSET 8Ch ................................................. 51
POWER MANAGEMENT ID REGISTER – OFFSET 90h .................................................................... 51
NEXT CAPABILITY POINTER REGISTER – OFFSET 90h ................................................................ 51
POWER MANAGEMENT CAPABILITY REGISTER – OFFSET 90h .................................................. 51
POWER MANAGEMENT CONTROL AND STATUS REGISTER – OFFSET 94h .............................. 52
PCI-TO-PCI SUPPORT EXTENSION REGISTER – OFFSET 94h ..................................................... 52
RESERVED REGISTERS – OFFSET 98h – 9Ch .................................................................................. 53
CAPABILITY ID REGISTER – OFFSET A0h ....................................................................................... 53
NEXT POINTER REGISTER – OFFSET A0h....................................................................................... 53
SLOT NUMBER REGISTER – OFFSET A0h ....................................................................................... 53
CHASSIS NUMBER REGISTER – OFFSET A0h ................................................................................. 53
SECONDARY CLOCK AND CLKRUN CONTROL REGISTER – OFFSET A4h ................................. 53
CAPABILITY ID REGISTER – OFFSET A8h ....................................................................................... 55
NEXT POINTER REGISTER – OFFSET A8h....................................................................................... 55
RESERVED REGISTER – OFFSET A8h .............................................................................................. 55
PI7C9X110
Rev 4.3
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May 2017
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