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Universal Serial Bus Interface

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Input/Output Interfaces 5.8 Universal Serial Bus Interface The Universal Serial Bus (USB) interface provides asynchronous/isochronous data transfers with compatible peripherals such as keyboards, printers, or modems. This high-speed interface supports hot-plugging of compatible devices, making possible system configuration changes without powering down or even rebooting systems. These systems provide eight externally-accessible USB ports, two front panel USB ports (which may be disabled) and six USB ports on the rear panel. In addition, the SFF and CMT form factors support a media reader accessory that uses two USB ports through a system board connection. The USB ports are dynamically configured to either a USB 1.1 controller or the USB 2.0 controller depending on the capability of the peripheral device. The 1.1 controllers provide a maximum transfer rate of 12 Mb/s while the 2.0 controller provides a maximum transfer rate of 480 Mb/s. Table 5-7 shows the mapping of the USB ports. USB Table 5-7. ICH9 USB Port Mapping ICH9 Controller Signals USB Connector Location USDT, SFF Form Factors CMT Form Factor USB 1.1 #1, USB 2.0 #1 Data 0P, 0N Data 1P, 1N System board header P150 System board header P150 Rear panel dual USB stack w/RJ-45 Rear panel dual USB stack w/RJ-45 USB 1.1 #2 USB 2.0 #1 Data 2P, 2N Data 3P, 3N Front panel USB Front panel USB Rear panel quad USB stack Rear panel quad USB stack USB 1.1 #3 USB 2.0 #1 Data 4P, 4N Data 5P, 5N Not used Not used Rear panel quad USB stack Rear panel quad USB stack USB 1.1 #4 USB 2.0 #2 Data 6P, 6N Data 7P, 7N Rear panel quad USB stack Rear panel quad USB stack system board header P150 system board header P150 USB 1.1 #5 USB 2.0 #2 Data 8P, 8N Data 9P, 9N Rear panel quad USB stack Rear panel quad USB stack Front panel USB Front panel USB USB 1.1 #6 USB 2.0 #2 Data 10P, 10N Rear panel dual USB stack w/RJ-45 Data 11P, 11N Rear panel dual USB stack w/RJ-45 Not used Not used 5.8.1 USB Connector These systems provide type-A USB ports as shown in Figure 5-7. 1 2 3 4 Figure 5-8. Universal Serial Bus Connector (as viewed from rear of chassis) Technical Reference Guide www.hp.com 5-11

Section	Page
Title	1
Table of Contents	3
Chapter 1: Introduction	7
1.1 About this Guide	7
1.1.1 Online Viewing	7
1.1.2 Hardcopy	7
1.2 Additional Information Sources	7
1.3 Model Numbering Convention	7
1.4 Serial Number	9
1.5 Notational Conventions	9
1.5.1 Special Notices	9
1.5.2 Values	9
1.5.3 Ranges	9
1.6 Common Acronyms and Abbreviations	10
Chapter 2: System Overview	17
2.1 Introduction	17
2.2 Features	18
2.3 System Architecture	20
2.3.1 Intel Processor Support	22
2.3.2 Chipset	23
2.3.3 Support Components	24
2.3.4 System Memory	24
2.3.5 Mass Storage	25
2.3.6 Serial and Parallel Interfaces	25
2.3.7 Universal Serial Bus Interface	25
2.3.8 Network Interface Controller	25
2.3.9 Graphics Subsystem	26
2.3.10 Audio Subsystem	26
2.4 Specifications	27
Chapter 3: Processor/Memory Subsystem	33
3.1 Introduction	33
3.2 Intel Processors	34
3.2.1 Intel Processor Overview	34
3.2.2 Processor Changing/Upgrading	35
3.3 Memory Subsystem	36
3.3.1 Memory Upgrading	37
3.3.2 Memory Mapping and Pre-allocation	37
Chapter 4: System Support	39
4.1 Introduction	39
4.2 PCI Bus Overview	39
4.2.1 PCI 2.3 Bus Operation	39
4.2.2 PCI Express Bus Operation	41
4.2.3 Option ROM Mapping	42
4.2.4 PCI Interrupts	42
4.2.5 PCI Power Management Support	42
4.2.6 PCI Connectors	43
4.3 System Resources	45
4.3.1 Interrupts	45
4.3.2 Direct Memory Access	46
4.4 Real-Time Clock and Configuration Memory	47
4.4.1 Clearing CMOS	47
4.4.2 Standard CMOS Locations	48
4.5 System Management	48
4.5.1 Security Functions	48
4.5.2 Power Management	50
4.5.3 System Status	51
4.5.4 Thermal Sensing and Cooling	51
4.6 Register Map and Miscellaneous Functions	52
4.6.1 System I/O Map	52
4.6.2 GPIO Functions	53
Chapter 5: Input/Output Interfaces	55
5.1 Introduction	55
5.2 SATA Interface	56
5.3 PATA Interface	57
5.4 Diskette Drive Interface	58
5.5 Serial Interface	60
5.6 Parallel Interface	61
5.6.1 Standard Parallel Port Mode	61
5.6.2 Enhanced Parallel Port Mode	61
5.6.3 Extended Capabilities Port Mode	61
5.6.4 Parallel Interface Connector	62
5.7 Keyboard/Pointing Device Interface	63
5.7.1 Keyboard Interface Operation	63
5.7.2 Pointing Device Interface Operation	64
5.7.3 Keyboard/Pointing Device Interface Connector	64
5.8 Universal Serial Bus Interface	65
5.8.1 USB Connector	65
5.8.2 USB Cable Data	66
5.9 Audio Subsystem	67
5.9.1 HD Audio Controller	68
5.9.2 HD Audio Link Bus	68
5.9.3 Audio Multistreaming	68
5.9.4 Audio Specifications	69
5.10 Network Interface Controller	70
5.10.1 Wake-On-LAN Support	71
5.10.2 Alert Standard Format Support	71
5.10.3 Power Management Support	71
5.10.4 NIC Connector	72
5.10.5 NIC Specifications	72
Chapter 6: Integrated Graphics	73
6.1 Introduction	73
6.2 Functional Description	74
6.3 Display Modes	76
6.4 Upgrading	77
6.5 Monitor Connectors	78
6.5.1 Analog Monitor Connector	78
6.5.2 Digital Monitor Connector	79
Chapter 7: Power and Signal Distribution	81
7.1 Introduction	81
7.2 Power Distribution	81
7.2.1 USDT Power Distribution	81
7.2.2 SFF Power Distribution	82
7.2.3 CMT Power Distribution	84
7.2.4 Energy Star Compliancy	85
7.3 Power Control	86
7.3.1 Power Button	86
7.3.2 Wake Up Events	88
7.3.3 Power Management	89
7.4 Signal Distribution	90
Chapter 8: System BIOS	93
8.1 Introduction	93
8.2 ROM Flashing	94
8.2.1 Upgrading	94
8.2.2 Changeable Splash Screen	94
8.3 Boot Functions	95
8.3.1 Boot Device Order	95
8.3.2 Network Boot (F12) Support	95
8.3.3 Memory Detection and Configuration	95
8.3.4 Boot Error Codes	96
8.4 Client Management Functions	97
8.4.1 System ID and ROM Type	98
8.4.2 Temperature Status	98
8.4.3 Drive Fault Prediction	98
8.5 SMBIOS	99
8.6 USB Legacy Support	100
8.7 Management Engine Functions	100

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Input/Output Interfaces

5.8 Universal Serial Bus Interface

The Universal Serial Bus (USB) interface provides asynchronous/isochronous data transfers with

compatible peripherals such as keyboards, printers, or modems. This high-speed interface

supports hot-plugging of compatible devices, making possible system configuration changes

without powering down or even rebooting systems.

These systems provide eight externally-accessible USB ports, two front panel USB ports (which

may be disabled) and six USB ports on the rear panel. In addition, the SFF and CMT form factors

support a media reader accessory that uses two USB ports through a system board connection.

The USB ports are dynamically configured to either a USB 1.1 controller or the USB 2.0

controller depending on the capability of the peripheral device.

The 1.1 controllers provide a

maximum transfer rate of 12 Mb/s while the 2.0 controller provides a maximum transfer rate of

480 Mb/s. Table 5-7 shows the mapping of the USB ports.

USB

5.8.1 USB Connector

These systems provide type-A USB ports as shown in Figure 5-7.

Figure 5-8.

Universal Serial Bus Connector (as viewed from rear of chassis)

Table 5-7.

ICH9 USB Port Mapping

ICH9

Controller

Signals

USB Connector Location

USDT, SFF Form Factors

CMT Form Factor

USB 1.1 #1,

USB 2.0 #1

Data 0P, 0N

System board header P150

Rear panel dual USB stack w/RJ-45

Data 1P, 1N

System board header P150

Rear panel dual USB stack w/RJ-45

USB 1.1 #2

USB 2.0 #1

Data 2P, 2N

Front panel USB

Rear panel quad USB stack

Data 3P, 3N

Front panel USB

Rear panel quad USB stack

USB 1.1 #3

USB 2.0 #1

Data 4P, 4N

Not used

Rear panel quad USB stack

Data 5P, 5N

Not used

Rear panel quad USB stack

USB 1.1 #4

USB 2.0 #2

Data 6P, 6N

Rear panel quad USB stack

system board header P150

Data 7P, 7N

Rear panel quad USB stack

system board header P150

USB 1.1 #5

USB 2.0 #2

Data 8P, 8N

Rear panel quad USB stack

Front panel USB

Data 9P, 9N

Rear panel quad USB stack

Front panel USB

USB 1.1 #6

USB 2.0 #2

Data 10P, 10N

Rear panel dual USB stack w/RJ-45

Not used

Data 11P, 11N

Rear panel dual USB stack w/RJ-45

Not used