PCI Express
®
Mini Card Electromechanical
Specification
Revision 1.2
October 26, 2007
PCI EXPRESS MINI CARD ELECTROMECHANICAL SPECIFICATION, REV 1.2
2
Revision Revision History Date
1.0 Initial release. 6/2/2003
1.1 Incorporated approved Errata and ECNs. 3/28/2003
1.2 Incorporated approved ECNs. 10/26/2007
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contained herein and assumes no responsibility for any errors that may appear in this document, nor
does the PCI-SIG make a commitment to update the information contained herein.
Contact the PCI-SIG office to obtain the latest revision of the specification.
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This PCI Express Mini Card Electromechanical Specification is provided "as is" with no
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Copyright © 2003, 2005, 2007 PCI-SIG
PCI EXPRESS MINI CARD ELECTROMECHANICAL SPECIFICATION, REV 1.2
3
Contents
1. INTRODUCTION ...................................................................................................................7
1.1. OVERVIEW ................................................................................................................... 7
1.2. SPECIFICATION REFERENCES........................................................................................ 9
1.3. TARGETED APPLICATIONS ........................................................................................... 9
1.4. FEATURES AND BENEFITS .......................................................................................... 10
2. MECHANICAL SPECIFICATION ......................................................................................11
2.1. OVERVIEW ................................................................................................................. 11
2.2. CARD SPECIFICATIONS............................................................................................... 11
2.2.1. Card Form Factor..................................................................................................... 12
2.2.2. Card and Socket Types.............................................................................................. 13
2.2.3. Card PCB Details ..................................................................................................... 14
2.3. SYSTEM CONNECTOR SPECIFICATIONS....................................................................... 21
2.3.1. System Connector...................................................................................................... 21
2.3.2. System Connector Parametric Specifications........................................................... 21
2.4. I/O CONNECTOR AREA .............................................................................................. 23
2.5. RECOMMENDED SOCKET CONFIGURATIONS............................................................... 23
2.5.1. Single-Use Full-Mini and Half-Mini Sockets ........................................................... 23
2.5.2. Dual-Use Sockets...................................................................................................... 26
2.5.3. Dual Head-to-Head Sockets ..................................................................................... 29
2.5.4. Side-by-Side Socket Spacing..................................................................................... 32
2.6. THERMAL GUIDELINES............................................................................................... 32
2.6.1. Thermal Design Definitions...................................................................................... 32
2.6.2. Thermal Guidelines for PCI Express Mini Card Add-in Card Designers................ 33
2.6.2.1. Implementation Considerations ........................................................................ 34
2.6.3. Thermal Guidelines for Integrating Wireless Wide Area Network Mini Card Add-in
Cards.........................................................................................................................
35
3. ELECTRICAL SPECIFICATIONS ......................................................................................39
3.1. OVERVIEW ................................................................................................................. 39
3.2. SYSTEM INTERFACE SIGNALS..................................................................................... 39
3.2.1. Power Sources and Grounds .................................................................................... 41
3.2.2. PCI Express Interface............................................................................................... 41
3.2.3. USB Interface............................................................................................................ 42
3.2.4. Auxiliary Signals....................................................................................................... 42
3.2.4.1. Reference Clock................................................................................................ 42
3.2.4.2. CLKREQ# Signal ............................................................................................. 42
3.2.4.3. PERST# Signal ................................................................................................. 46
3.2.4.4. WAKE# Signal ................................................................................................. 46
3.2.4.5. SMBus............................................................................................................... 46
3.2.5. Communications Specific Signals............................................................................. 47
3.2.5.1. Status Indicators................................................................................................ 47
3.2.5.2. W_DISABLE# Signal....................................................................................... 48
PCI EXPRESS MINI CARD ELECTROMECHANICAL SPECIFICATION, REVISION 1.2
4
3.2.6. User Identity Module (UIM) Interface...................................................................... 49
3.2.6.1. UIM_PWR........................................................................................................ 49
3.2.6.2. UIM_RESET..................................................................................................... 49
3.2.6.3. UIM_CLK......................................................................................................... 49
3.2.6.4. UIM_VPP ......................................................................................................... 49
3.2.6.5. UIM_DATA...................................................................................................... 50
3.3. CONNECTOR PIN-OUT DEFINITIONS ........................................................................... 50
3.3.1. Grounds..................................................................................................................... 51
3.3.2. Coexistence Pins ....................................................................................................... 51
3.3.3. Reserved Pins............................................................................................................ 51
3.4. ELECTRICAL REQUIREMENTS..................................................................................... 52
3.4.1. Logic Signal Requirements ....................................................................................... 52
3.4.2. Digital Interfaces ...................................................................................................... 52
3.4.3. Power ........................................................................................................................ 55
3.5. CARD ENUMERATION................................................................................................. 55
A. SUPPLEMENTAL GUIDELINES FOR PCI EXPRESS MINI CARD CONNECTOR
TESTING...............................................................................................................................57
A.1. TEST BOARDS ASSEMBLY .......................................................................................... 57
A.1.1. Base Board Assembly................................................................................................ 58
A.1.2. Plug-in Cards Assembly............................................................................................ 59
A.2. INSERTION LOSS MEASUREMENT............................................................................... 60
A.3. RETURN LOSS MEASUREMENT................................................................................... 60
A.4. NEAR END CROSSTALK MEASUREMENT .................................................................... 60
B. I/O CONNECTOR GUIDELINES........................................................................................63
B.1. WIRE-LINE MODEMS.................................................................................................. 63
B.2. IEEE 802.3 WIRED ETHERNET .................................................................................. 63
B.3. IEEE 802.11 WIRELESS ETHERNET........................................................................... 63
PCI EXPRESS MINI CARD ELECTROMECHANICAL SPECIFICATION, REVISION 1.2
5
Figures
FIGURE 1-1: PCI EXPRESS MINI CARD ADD-IN CARD INSTALLED IN A MOBILE PLATFORM........... 8
FIGURE 1-2: LOGICAL REPRESENTATION OF THE PCI EXPRESS MINI CARD SPECIFICATION ........... 8
FIGURE 2-1: FULL-MINI CARD FORM FACTOR (MODEM EXAMPLE APPLICATION SHOWN).......... 12
FIGURE 2-2: HALF-MINI CARD FORM FACTOR (WIRELESS EXAMPLE APPLICATION SHOWN)...... 13
FIGURE 2-3: FULL-MINI CARD TOP AND BOTTOM........................................................................ 15
FIGURE 2-4: HALF-MINI CARD TOP AND BOTTOM ....................................................................... 16
FIGURE 2-5: CARD TOP AND BOTTOM DETAILS A AND B............................................................. 17
FIGURE 2-6: CARD EDGE .............................................................................................................. 18
FIGURE 2-7: CARD COMPONENT KEEP OUT AREAS FOR FULL-MINI CARDS................................. 19
FIGURE 2-8: CARD COMPONENT KEEP OUT AREAS FOR HALF-MINI CARDS ................................ 20
FIGURE 2-9: PCI EXPRESS MINI CARD SYSTEM CONNECTOR....................................................... 21
FIGURE 2-10: I/O CONNECTOR LOCATION AREAS........................................................................ 23
FIGURE 2-11: RECOMMENDED SYSTEM BOARD LAYOUT FOR FULL-MINI-ONLY SOCKET............ 24
FIGURE 2-12: RECOMMENDED SYSTEM BOARD LAYOUT FOR HALF-MINI-ONLY SOCKET ........... 25
FIGURE 2-13: RECOMMENDED SYSTEM BOARD LAYOUT (DETAIL D) .......................................... 26
FIGURE 2-14: DUAL-USE SOCKET ................................................................................................ 27
FIGURE 2-15: RECOMMENDED SYSTEM BOARD LAYOUT FOR DUAL-USE SOCKET....................... 28
FIGURE 2-16: DUAL HEAD-TO-HEAD SOCKET.............................................................................. 30
FIGURE 2-17: RECOMMENDED SYSTEM BOARD LAYOUT FOR DUAL HEAD-TO-HEAD SOCKETS... 31
FIGURE 2-18: RECOMMENDED SYSTEM BOARD LAYOUT (SIDE-BY-SIDE SPACING) ..................... 32
FIGURE 2-19: POWER DENSITY UNIFORM LOADING AT 80 PERCENT COVERAGE ......................... 34
FIGURE 3-1: POWER-UP CLKREQ# TIMING ................................................................................ 44
FIGURE 3-2: CLKREQ# CLOCK CONTROL TIMINGS .................................................................... 45
Tables
TABLE 2-1: CARD AND SOCKET TYPES CROSS-COMPATIBILITY ................................................... 14
TABLE 2-2: SYSTEM CONNECTOR PHYSICAL REQUIREMENTS ...................................................... 21
TABLE 2-3: SYSTEM CONNECTOR MECHANICAL PERFORMANCE REQUIREMENTS........................ 22
TABLE 2-4: SYSTEM CONNECTOR ELECTRICAL PERFORMANCE REQUIREMENTS.......................... 22
TABLE 2-5: SYSTEM CONNECTOR ENVIRONMENTAL PERFORMANCE REQUIREMENTS.................. 22
TABLE 2-6: MAXIMUM TDP ......................................................................................................... 35
TABLE 3-1: PCI EXPRESS MINI CARD SYSTEM INTERFACE SIGNALS............................................ 39
TABLE 3-2: POWER-UP CLKREQ# TIMINGS................................................................................ 44
TABLE 3-3: CLKREQ# CLOCK CONTROL TIMINGS ..................................................................... 45
TABLE 3-4: SIMPLE INDICATOR PROTOCOL FOR LED STATES...................................................... 47
TABLE 3-5: RADIO OPERATIONAL STATES.................................................................................... 48
TABLE 3-6: SYSTEM CONNECTOR PIN-OUT................................................................................... 50
TABLE 3-7: DC SPECIFICATION FOR 3.3V LOGIC SIGNALING....................................................... 52
TABLE 3-8: SIGNAL INTEGRITY REQUIREMENTS AND TEST PROCEDURES .................................... 53
TABLE 3-9: POWER RATINGS ........................................................................................................ 55
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