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Chapter Eight : Motherboard Hardware Support

69

System Speaker Control Circuit

The motherboard must provide the hardware circuitry for the MegaRAC M300V card to share
control of the system speaker (transducer) with the Southbridge or I/O hub. This circuitry allows
the MegaRAC M300V card to drive the system speaker with the MCARD_SYS_SPKR_DATA
signal to generate audible alerts. It may be used as part of the server identification capability in a
rack environment.

Speaker Control Circuit Example

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Содержание MegaRAC M300V

Страница 1: ...MegaRAC M300V Card Implementer s Reference and User s Guide MAN M300V 07 9 07 ...

Страница 2: ...nslated into any language or computer language or transmitted in any form whatsoever without the prior written consent of the publisher American Megatrends Inc American Megatrends Inc acknowledges the following trademarks AMD is a registered trademark of Advanced Micro Devices Other trademarks and trade names may be used in this document to refer to either the entities claiming the marks and names...

Страница 3: ...Group 15 Sensor Reading 15 Sensor Readings with Thresholds 15 Event Log 16 Sensor Monitoring Options 16 Configuration Group 17 Alert List 17 Alert List Modify Alert 18 Alert List Send Test Alert 18 LDAP Settings 19 Mouse Mode Settings 20 Network Settings 21 SMTP Setting 22 SSL Configuration 22 User List 23 Add New User 24 Modify User 25 Delete User 25 Remote Control Group 26 Launch Redirection 26 ...

Страница 4: ...rt and ICMB 36 Signal Group mCard Serial Port and ICMB 36 Serial Over LAN Feedback Path 36 Signal Group SoL Serial Port 36 Dedicated Management Ethernet Signals 37 BMC Host Interface ID Signals 37 Signal Group Interface Type ID 37 MCard Presence Detection Signal 38 Signal Group Card Detect 38 System Status Signals 38 Signal Group Status 38 System Control Signals 40 Signal Group Control 40 I2 C or ...

Страница 5: ...Clear CMOS Circuit 68 CMOS Clearing Circuit Example 68 System Speaker Control Circuit 69 Speaker Control Circuit Example 69 Local Access Lock Out 70 Partial Circuit Example for Local Access Lock Out 70 ACPI State Reporting 71 Signal Encoding for ACPI State Reporting 71 DVI Digital Visual Interface 71 ICMB RS 485 Level Translation Circuit 71 Management UART Signal Level Translation 71 Management UA...

Страница 6: ...ained therein even if American Megatrends has been advised of the possibility of such damages Any questions or comments regarding this document or its contents should be addressed to American Megatrends at the address shown on the inside of the front cover American Megatrends provides this publication as is without warranty of any kind either expressed or implied including but not limited to the i...

Страница 7: ...type motherboards with OPMA connector The module interfaces with various components on the motherboard to manage the server efficiently The MegaRAC M300V card is based on AMI s MG 9091 Verbena II highly integrated System on Chip SOC Verbena II SOC provides both Serial over LAN and KVM over LAN capability as well as a 10 100 Base T LAN connection for dedicated management LAN Serial over LAN allows ...

Страница 8: ...it Keys Peripherals 5x I2C Controllers and 2x UARTs RTC Timer Watchdog Timer and Interrupt Controller 4x PWMs and 8x Tach Inputs 22 Dedicated GPIOs 26 Shared GPIOs 200 KSPS 8 channel ADC 10 bit Resolution ADC Integrated LPC Interface 3X KCS Interface Port 80H Snoop Support BT Interface with 512 FIFO Bus master Support 484 Pin BGA 23x23 mm Package KVM IP Console Redirection High performance redirec...

Страница 9: ...the user profiles LDAP Client Support Direct LDAP support from the device Windows Active Directory and Open LDAP support Client application to extend the LDAP schema easily SMASH and CLP Support IPMI 2 0 boot option support Telnet based SoL Power control of the server Fully compliant with the DMTF specification Side Band and Dedicated NIC Dedicated NIC support Security SSL Secured Socket Layer Enc...

Страница 10: ...dor Used in this specification to refer to the manufacturer of OPMA subsystem board firmware OS level drivers and OS level applications JTAG Joint Test Action Group KCS IPMI s Keyboard Controller Style command interface KVMoIP Keyboard Video and Mouse over Internet Protocol Used for implementing remote video consoles on headless for example no local keyboard mouse or display servers LED Light Emit...

Страница 11: ...ecord Repository SEEPRO M Serial Electrically Erasable Programmable Read Only Memory SEL System Error Log See the IPMI specification for details SERIRQ Serialize Interrupt Request See the LPC specification for details SMBus An I2 C bus derivative SMIC IPMI s Server Management Interface Chip command interface SoL Serial over LAN The redirecting of text data to a remote text console using Ethernet a...

Страница 12: ... names of all IPMI commands are presented with no spaces between the words in the name Only the first letter of each word is capitalized Example GetSystemTypeIdentifier IPMI command parameters The names of all IPMI command parameters are presented with spaces between the words in the name Only the first letter of each word is capitalized unless the word is an acronym or abbreviation Example Interf...

Страница 13: ...IPMI 1 5 Intelligent Platform Management Interface Specification Version 1 5 Revision 1 1 IPMI 2 0 Intelligent Platform Management Interface Specification Version 2 0 Revision 1 0 DVI Digital Visual Interface Specification Version 1 0 I2C Inter Integrated Circuit Bus Specification Version 2 1 JTAG IEEE 1149 1 LPC Low Pin Count Interface Specification Revision 1 1 USB Universal Serial Bus Specifica...

Страница 14: ...8 MegaRAC M300V Card Implementer s Reference and User s Guide ...

Страница 15: ...h Module 16MB Frame Buffer Memory American Megatrends Inc MegaRAC MG9091B Controller Chip DDR2 Key OPMA Specification Ver 1 2 Notice that the notch is located closer to the leads on the right than the leads on the left 32 MB SOC Memory Reset Switch push to reset button is located on the left side ...

Страница 16: ...10 MegaRAC M300V Card Implementer s Reference and User s Guide ...

Страница 17: ...low learning curve because it uses a standard Internet browser You can expect to be up and running in less than five minutes This chapter allows you to become familiar with the M300V GUI s various functions Each function is described in detail Note Your M300V GUI may not match this document If it does not appear to be the same you can visit ami com and download the most current user s guide ...

Страница 18: ...e After you run the EXE file the Device Spy exe file will become available Device Spy exe is the file that contains the Intel Device Spy for UPnP Technologies program Device Spy Intel s Universal Control Point UCP This tool readily tests action invocations and events Device Spy also traces packets sent to UPnP devices For more information on how to use Intel Device Spy for UPnP Technologies see th...

Страница 19: ... by Internet browsers If redirection does not operate properly you may have to set up Internet Explorer s Security Settings to allow the downloading of Unsigned ActiveX controls and also allow it to run Unsigned ActiveX controls as well Default User Name and Password When you first try to access your M300V card you will be prompted to enter a user name and password The default user name and passwo...

Страница 20: ...s General Information Group Server Health Group Configuration Group Remote Control Group Maintenance Group Languages Group General Information Group This group of pages allows you to view system information System Information This page displays information about the firmware and device availability Field Description Firmware Revision Major and minor revision of the firmware IPMI Version The IPMI c...

Страница 21: ...nsor s name reading and the current status of the sensor Refresh button Use this button to refresh the sensor readings view Show Thresholds button Clicking Show Thresholds button expands the sensor reading table and also show the various threshold settings for every sensor Name Status Reading Low NR Low CT Low NC High NC High CT High NR Sensor Readings with Thresholds This page displays all sensor...

Страница 22: ...on the I2C bus Item Description Monitoring Options You can select how you want to monitor the sensors Direct Monitoring of sensors on the I2C bus needs PMCP files Monitoring via External BMC needs IPMB connection External BMC Slave Address If being monitored by an external BMC you will need to provide the slave address so that the MegaRAC M300V card will be able to read data from the onboard BMC o...

Страница 23: ...page where you can configure the SMTP mail server SSL Certificate button This button takes you to the SSL Configuration page where you can view default certificate and private key or upload a new SSL Certificate Users button This button takes you to the User List page where you can add edit or remove users Alert List On this page you can configure alert destinations To delete an alert select it an...

Страница 24: ...n IP address into this field If you have selected Email as the Alert Type this field will be grayed out Email Address field Type the Email Address into this field If you have selected SNMP Trap as the Alert Type this field will be grayed out Subject field Type a Subject into this field If you have selected SNMP Trap as the Alert Type this field will be grayed out Message field Type a Message into ...

Страница 25: ...cessing network resources and can easily define user group based policies to control access Use the following fields to authenticate and access the LDAP server Item Description Enable LDAP Authentication box Check this box to enable LDAP authentication through an LDAP server Port field Enter the port address of your LDAP server A common port used by LDAP is port 389 IP Address field Type in the IP...

Страница 26: ... when host server is running in Windows platform Set mode to Relative option Select this option to select mouse mode to Relative depending upon your system In this mode the user can see only one mouse cursor for example redirected host mouse cursor This mode will lock the local mouse cursor inside the redirected window and the user has to press Alt M to unlock and stop mouse redirection Here Alt M...

Страница 27: ...V s IP to be configured by a DHCP server dynamically Use the following IP address option This option allows you to configure the MegaRAC M300V s IP address with a static IP The IP Address Subnet Mask and Gateway fields will become editable when this option is selected IP Address field This field allows you to set the MegaRAC M300V s IP address Subnet Mask field This field allows you to set the Sub...

Страница 28: ...d field This field allows you to upload an SSL Certificate and SSL Private Key Browse button Use the Browse button to search for your SSL Certificate or Private Key Both types of files have a PEM file extension Upload button Use this button to upload the files to the card Note The MegaRAC M300V does not support pass phrase encrypted certificates Once you upload the certificates left click the OK b...

Страница 29: ...ation with the User Name User Name column This column displays a list of all users who are able to access this MegaRAC M300V Note The default administrator is root It is prudent for you to change the root password Network Privilege column This column displays the network rights associated with the account Add User button Use this button to add a new user You must select an open field first Modify ...

Страница 30: ...ters long and no more than 32 characters long User names are case sensitive and must start with an alphabetical character Password field Enter a password in the Password field Your password must be at least eight characters long Note The password must be a minimum of eight characters and a maximum of 32 characters Use a mixture of alphanumeric and special characters for better security The passwor...

Страница 31: ...st be a minimum of eight characters and a maximum of 32 characters Use a mixture of alphanumeric and special characters for better security The password is case sensitive Confirm Password field Confirm your password by entering your password again in the Confirm Password field Network Privileges drop down menu Modify network permissions and access rights Administrator Operator User Callback No Acc...

Страница 32: ...ows platform with Internet Explorer 2 Java Console Recommended on all platforms Remote Console Shortcut Key Combinations The most powerful feature of your MegaRAC M300V is the ability to redirect the server s console To redirect the server s console is the ability to manage your server as if it were physically in front of you when it is not The following table is a list of basic keystrokes and the...

Страница 33: ...ole Redirection Window Keyboard This dropdown menu contains the following dropdown menu items Menu Item Description Hold Right Ctrl Key This menu item can be used to act as the right side CTRL key when in Console Redirection Hold Right Alt Key This menu item can be used to act as the right side ALT key when in Console Redirection Hold Left Ctrl Key This menu item can be used to act as the left sid...

Страница 34: ...y for given bandwidth The relation between speed and quality is that more speed tries to reduce the data over network and thus reducing quality and vice versa Video Settings The Video Performance Parameters allows you to enhance the frame rate of your remote console session Red Gain slider This slider allows you to increase or decrease the amount of red Green Gain slider This slider allows you to ...

Страница 35: ...Menu Item Description About AVCView Displays the copyright and version information Power Status and Control This page allows you to view and control the power of your server Select one of the options listed in the following table to execute on your server You will be asked to confirm your choice Upon confirmation the command will be executed and you will be informed of the status Item Description ...

Страница 36: ...rowser and log back onto the MegaRAC card before you can perform any other types of operations You can update the device s firmware here Select the Enter Update Mode button to put the device in a special mode that allows firmware update You can now follow the instructions presented in the subsequent pages to successfully update the card s firmware The device will reset if update is canceled Item D...

Страница 37: ...ls at the connector If the system level manageability solution requires a more detailed visual indication of faults with other LEDs or LCD indicators they may be achieved through I2 C or SMBus based indicators Any other system specific GPIOs should be implemented on the motherboard using I2 C or SMBus based GPIO expanders for example 8575 devices OPMA does not require the implementation of additio...

Страница 38: ...ead of I2 C or SMBus based control signals because the supported functions are deemed mission critical Signal Group Buttons Signal Group Signal Name Signal Function I O Signal Termination on MB Buttons MCARD_PWRBTN_L MegaRAC M300V card remote system power button O 4 7k PU to 3 3V MCARD_RSTBTN_L MegaRAC M300V card remote system reset button O 4 7k PU to 3 3V MCARD_NMIBTN_L MegaRAC M300V card remote...

Страница 39: ...VI_CLK_H TMDS differential pair clock I O N A DVI_CLK_L DVI_DDC_DATA Data signal for DDC interface I O 4 7k PU to 3 3V DVI_DDC_CLK Clock signal for DDC interface I O 4 7k PU to 3 3V ANALOG_DDC_DATA Not Used By M300V I O 4 7k PU to 3 3V ANALOG_DDC_CLK I O 4 7k PU to 3 3V ANALOG_RED I N A ANALOG_GREEN I N A ANALOG_BLUE I N A ANALOG_HSYNC I O N A ANALOG_VSYNC I O N A TMDS differential data pairs DVI_...

Страница 40: ...WM_PS PWM output to control the speed of all power supply fans Multiplexed Fan Tach Input Signals The fan tachometer inputs are provided for the MegaRAC M300V card to read in the RPM of each set of fans connected to it OPMA incorporates fan tach signal multiplexing OPMA compliant motherboards must contain a 16 4 digital fan tach MUX OEMs ODMs can use this feature to implement systems with up to 16...

Страница 41: ...gle Wire Analog Voltage Sensor Signals The analog voltage sensors are primary voltage rails brought in for the MegaRAC M300V card A D converters or analog comparators The MegaRAC M300V card monitors these rails for appropriate voltage levels While some of the existing BMCs used on mCards provide A D converters others provide analog comparators for voltage monitoring The motherboard vendor must pro...

Страница 42: ...low connection to either DTE Data Terminal Equipment connect to another computer or to DCE Data Communications Equipment connects to a MODEM Dedicated for use by BMC UART generated traffic that will be routed to a back panel RS 232 connector Hardware flow control supported Channel 3 includes TxD and RxD only along with TxD data enable control signal Dedicated for use by ICMB traffic XON and XOFF s...

Страница 43: ...anagement Ethernet BMC Host Interface ID Signals These signals are provided for the system level software BIOS and so on to identify the type of IPMI communications interface supported by the installed mCard solution The IPMI Specification currently describes four possible host interfaces KCS BT SMIC and SSIF M300V Implements 3 KCS only Interface KCS0 Port 0xCA2 0xCA3 KCS1 Port 0xCA4 0xCA5 KCS2 Po...

Страница 44: ... I 3 3V thru switch SYS_RSTBTN_L Indicates status of system reset button I 3 3V thru switch SYS_NMIBTN_L Indicates status of system NMI button I 3 3V thru switch SYS_SMI_L Motherboard SMI status I 4 7k PU to 3 3V SYS_PCI_RST_L Motherboard reset status I 4 7k PU to 3 3V SYS_ACPI_STATE0 Binary encoded indication of the current system ACPI sleep state S0 S1 S2 S3 S4 S5 I 4 7k PU to 3 3V SYS_ACPI_STAT...

Страница 45: ...This signal can be used to remotely detect a local NMI button assertion System SMI SYS_SMI_L The MegaRAC M300V card monitors this input for detecting SMI activity on the motherboard Usage of this signal is platform specific Note The MegaRAC M300V cards do not generate SMI to the system using this signal it is for monitoring purposes only System PCI reset SYS_PCI_RST_L The MegaRAC M300V card monito...

Страница 46: ... The MegaRAC M300V card uses this signal to clear the host system CMOS RAM Clearing the CMOS is often necessary after actions such as updating BIOS Asserting this signal for at least 250 ms and then deasserting it causes the system CMOS to be cleared Speaker data MCARD_SYS_SPKR_L The BMC may pulse this signal to send tones to the system speaker transducer that is typically soldered to the motherbo...

Страница 47: ...MCARD_I2C_SHARED_SCL mCard shared host device I2 C clock I O 4 7k PU to 3 3V MCARD_I2C_SHARED_SDA mCard shared host device I2 C data I O 4 7k PU to 3 3V mCard IPMB MCARD_I2C_IPMB_SCL MCARD_I2C_IPMB_SDA One bus two signals for Intelligent Platform Management Bus mCard sideband NIC channel MCARD_I2C_SIDEBAND_NIC_SCL MCARD_I2C_SIDEBAND_NIC_SDA One bus two signals through which the system NIC may send...

Страница 48: ... LPC LAD0 LPC address data bus I O 10k PU to 3 3V LAD1 LAD2 LAD3 LFRAME_L LPC frame signal I N A LRST_L LPC reset for mCard LPC interface I N A LDRQ_L LPC DMA request signal O 10k PU to 3 3V SERIRQ Serialized IRQ signal I O N A LCLKRUN_L Clock run same as PCI CLKRUN O 10k PU to 3 3V LCLK LPC clock signal I N A All LPC signals as defined in the LPC specification Miscellaneous Signals No relationshi...

Страница 49: ...for debugging Signal Group Debug Interface Signal Group Signal Name Signal Function I O Signal Termination on MB Debug Interface DEBUG_IF0 NOT Used By M300V I O N A DEBUG_IF1 DEBUG_IF2 DEBUG_IF3 DEBUG_IF4 DEBUG_IF5 DEBUG_IF6 DEBUG_IF7 Signal Group Debug Power Signal Group Signal Name Signal Function I O Signal Termination on MB Debug Power DEBUG_PWR0 NOT Used By M300V I N A DEBUG_PWR1 ...

Страница 50: ...R and SEL SEEPROM devices at SEEPROM I2 C or SMBus addresses A0h and A2h In addition these devices must be located on the OPMA defined MCARD_I2C_PRIVATE0 only The MegaRAC M300V cards using this scheme must select SEEPROM devices that can be addressed at A0h and A2h locations The A0h address is reserved for the SEL device and the A2h address is reserved for the SDRR device If a single SEEPROM devic...

Страница 51: ...up Signal Name Signal Function I O Signal Termination on MB mCard Power and Ground VDD_3 3_DUAL 3 3V supplied in all sleep modes I N A VDD_3 3_DUAL VDD_3 3_DUAL VDD_3 3_DUAL VDD_5_DUAL NOT Used By M300V I VDD_5_DUAL VDD_3 3_DUAL is a 3 3VDC voltage rail that is supplied in ACPI power states S0 S1 S2 S3 S4 and S5 In ACPI power states S0 and S1 the platform must be capable of supplying to the MegaRA...

Страница 52: ...LOG_RED I N A ANALOG_GREEN I N A ANALOG_BLUE I N A ANALOG_HSYNC I O N A ANALOG_VSYNC I O N A Multi Bank Fan Control MCARD_FAN_PWM_CPU mCard PWM CPU fan control O 3 3V signal level MCARD_FAN_PWM_SYS mCard PWM system fan control O 3 3V signal level MCARD_FAN_PWM_PS mCard PWM power supply fan control O 3 3V signal level Multiplexed Fan Tachometers MCARD_FAN_TACH0 Multiplexed fan tach input 0 I 4 7k P...

Страница 53: ... status of system reset button I 3 3V thru switch SYS_NMIBTN_L Indicates status of system NMI button I 3 3V thru switch SYS_SMI_L Motherboard SMI status I 4 7k PU to 3 3V SYS_PCI_RST_L Motherboard reset status I 4 7k PU to 3 3V SYS_ACPI_STATE0 Binary encoded indication of the current system ACPI sleep state S0 S1 S2 S3 S4 S5 I 4 7k PU to 3 3V SYS_ACPI_STATE1 I 4 7k PU to 3 3V SYS_ACPI_STATE2 I 4 7...

Страница 54: ...bug Interface DEBUG_IF0 NOT USED BY M300V I O N A DEBUG_IF1 DEBUG_IF2 DEBUG_IF3 DEBUG_IF4 DEBUG_IF5 DEBUG_IF6 DEBUG_IF7 Debug Power DEBUG_PWR0 NOT USED BY M300V I N A DEBUG_PWR1 mCard Power and Ground VDD_3 3_DUAL 3 3V supplied in all sleep modes I N A VDD_3 3_DUAL VDD_3 3_DUAL VDD_3 3_DUAL VDD_5_DUAL NOT Used By M300V I VDD_5_DUAL Note Signal level terminations on the motherboard PU Refers to pul...

Страница 55: ... RSVD GND 8 GROUND GROUND 9 GND DVI_TX0_H 10 TMDS0 LPC_DRQ 11 LDRQ_L DVI_TX0_L 12 TMDS0 LPC_LFRAME 13 LFRAME_L GND 14 GROUND LPC_LAD0 15 LAD0 DVI_TX1_H 16 TMDS1 LPC_CLKRUN 17 LCKRUN_L DVI_TX1_L 18 TMDS1 LPC_LAD1 19 LAD1 GND 20 GROUND LPC_LAD2 21 LAD2 DVI_TX2_H 22 TMDS2 LPC_LAD3 23 LAD3 DVI_TX2_L 24 TMDS2 LPC_SERIRQ 25 SERIRQ GND 26 GROUND LPC_RST 27 LRST_L DVI_TX_CLK_H 28 TMDSCLK LPC_CLK 29 LCLK D...

Страница 56: ...MCARD_ID1 GND 108 GROUND MCARD_ID2 109 MCARD_ID2 MCARD_PWRBTN_L 110 PWRBTN GROUND 111 GND MCARD_RSTBTN_L 112 RSTBTN 113 DEBUG_IF4 MCARD_NMIBTN_L 114 NMIBTN 115 DEBUG_IF5 GND 116 GROUND 117 DEBUG_IF6 MCARD_AUX_SOL_CTRL_L 118 MCARD_AUX_SOL_CTRL 119 DEBUG_IF7 RSVD 120 GROUND 121 GND GND 122 GROUND LOCAL_LOCK 123 MCARD_LOCAL_LOCK_L MCARD_RXD1 124 MCARD_ICMB_RXD SYS_SPKR_DATA 125 MCARD_SYS_SPKR_DATA MC...

Страница 57: ...D_3 3_DUAL GND 174 GROUND 3 3V_STB 175 VDD_3 3_DUAL MCARD_RX_H 176 A_MII_LAN_RX 3 3V_STB 177 VDD_3 3_DUAL MCARD_RX_L 178 A_MII_LAN_RX GROUND 179 GND POE_GND 180 CHASSIS GROUND GROUND 181 GND POE_PWR 182 183 VDD_5_DUAL POE_PWR 184 185 VDD_5_DUAL POE_GND 186 CHASSIS GROUND 187 RSVD LAN_BUSY_LED_L 188 A_MII_BUSY_LED 189 RSVD LAN_LINK_LED_L 190 A_MII_LINK_LED 191 RSVD GND 192 GROUND 193 RSVD RSVD 194 ...

Страница 58: ...52 MegaRAC M300V Card Implementer s Reference and User s Guide ...

Страница 59: ...nstallation into either DDR1 or DDR2 SODIMM OPMA sockets on the motherboard OPMA specification version 1 2 and later versions require the card key specification to mechanically conform to SODIMM DDR2 only AMD has determined that the original double wide keying scheme could cause misalignment between socket pins and gold fingers This has been seen only under worst case manufacturing tolerances betw...

Страница 60: ...54 MegaRAC M300V Card Implementer s Reference and User s Guide MegaRAC M300V Card Mechanical Form Factor ...

Страница 61: ...rt This arrangement is required so that both the CLI and the system text consoles BIOS setup and so on can share the same serial legacy concentrator infrastructure that is commonly found in the field today The dedicated management LAN Ethernet signals from the OPMA connector are routed through the motherboard to a chassis mounted RJ 45 connector Except in the upgrade kit mode if an M300V card is p...

Страница 62: ...56 MegaRAC M300V Card Implementer s Reference and User s Guide ...

Страница 63: ...cy serial concentrators and can lead to lower installation and maintenance costs due to reduced cabling and the elimination of serial concentrators from the management infrastructure For the MegaRAC M300V card s SoL and Serial Port Routing Logic to work correctly the Host system must implement one MUX logic X5 for the UART control signals and one De MUX X4 for UART TXD and RXD signal for the mothe...

Страница 64: ...irection is from Y to B X1 X2 X3 X4 X5 RS232 xlator Connector UART0 UART1 UART BMC CLI Generator ESC Snoop BMC Local Bus Management NIC Super I O Host System Handshake Signals UART Handshake Signals SoL ESC Snoop TxD RxD B not used when card installed On card TxD RxD signal mux control Handshake signal mux control from mCard Driven by UART but not felt at connector TxD RxD TxD RxD Rx A B Y A B Y A...

Страница 65: ...ator ESC Snoop BMC Local Bus Management NIC Ethernet Super I O Host System Handshake Signals UART Handshake Signals SoL ESC Snoop TxD RxD mCard Present B not used when card installed On card TxD RxD signal mux control Handshake signal mux control from mCard Driven by UART and muxed to connector TxD RxD TxD RxD Rx A B Y A B Y A B Y A B Y A B Y X1 X2 X3 UART0 UART1 BMC CLI Generator ESC Snoop BMC Lo...

Страница 66: ...5 RS232 xlator Connector UART0 UART1 UART BMC CLI Generator ESC Snoop BMC Local Bus Management NIC Ethernet Super I O Host System Handshake Signals UART Handshake Signals SoL ESC Snoop TxD RxD mCard Present B not used when card installed On card TxD RxD signal mux control Handshake signal mux control from mCard Driven by UART but not felt at connector TxD RxD TxD RxD Rx A B Y A B Y A B Y A B Y A B...

Страница 67: ...op BMC Local Bus Management NIC Ethernet Super I O Host System Handshake Signals UART Handshake Signals SoL ESC Snoop TxD RxD mCard Present B not used when card installed On card TxD RxD signal mux control Handshake signal mux control from mCard Driven by UART and muxed to connector TxD RxD TxD RxD Rx A B Y A B Y A B Y A B Y A B Y X1 X2 X3 UART0 UART1 BMC CLI Generator ESC Snoop BMC Local Bus Mana...

Страница 68: ...card s UART0 signals are routed to the motherboards serial port connector 3 MegaRAC M300V card is present and the M300V is in non SoL mode The motherboard s UART0 TXD and RXD signals are routed to the motherboards serial port connector through the MegaRAC M300V card MegaRAC M300V Card Not Present MCARD_DETECT_L Logic High MCARD_AUX_SoL_CTRL_L Logic High All signals from the motherboard UART are ro...

Страница 69: ... ESC Snoop TxD RxD On card TxD RxD signal mux control Rx A B Y A B Y A B Y MCARD_DETECT_L Logic Low MCARD_AUX_SoL_CTRL_L Logic Low This is the default configuration All the MegaRAC M300V card UART0 signals are routed to the motherboard s serial port connector and the motherboard s serial port TXD and RXD signals are routed to OPMA SoL pins that are routed to the MegaRAC M300V card UART 1 In this c...

Страница 70: ...C M300V card UART0 is in No Connect mode X1 X2 X3 X4 X5 RS232 xlator Connector UART0 UART1 UART BMC CLI Generator ESC Snoop BMC Local Bus Management NIC Ethernet Super I O Host System Handshake Signals UART Handshake Signals SoL ESC Snoop TxD RxD mCard Present B not used when card installed On card TxD RxD signal mux control Handshake signal mux control from mCard Driven by UART but not felt at co...

Страница 71: ...l termination requirements for the motherboard are listed in Chapter Four OPMA Interface Signal Specification Fan Tachometer Read Back The MegaRAC M300V card reads the fan tachometers through a 16 4 multiplexer located on the motherboard Only four fan tach signals are provided across the OPMA connector as inputs to the MegaRAC M300V card The 16 4 multiplexer is controlled by four MUX select signal...

Страница 72: ...66 MegaRAC M300V Card Implementer s Reference and User s Guide Fan Tach Monitoring Circuit Block Diagram Fan Tach Monitoring Circuit Example ...

Страница 73: ...an speed control circuit The illustration below shows the block diagram of the fan speed control circuit The one beneath it shows an example of the fan speed control PWM to DC converter circuit If the platform is using PWM controlled fans this circuitry is not required but proper hardware buffering might be required for directly routing the PWM signals to the fan circuitry Fan Speed Control Circui...

Страница 74: ...ystem chassis This circuitry must co exist with the traditional jumper based method provided by the motherboard to clear the CMOS contents The BMC asserts MCARD_CLR_CMOS_L for a minimum of 250 ms to clear the CMOS The motherboard hardware ensures that the CMOS is cleared if this signal is held active by the BMC for 250 ms If the CMOS RAM chip requires a longer CMOS clear signal activation period i...

Страница 75: ... M300V card to share control of the system speaker transducer with the Southbridge or I O hub This circuitry allows the MegaRAC M300V card to drive the system speaker with the MCARD_SYS_SPKR_DATA signal to generate audible alerts It may be used as part of the server identification capability in a rack environment Speaker Control Circuit Example ...

Страница 76: ...ed to lock out local access to PS2 USB keyboard and PS2 USB mouse Local lock out should not restrict remote access to these interfaces In other words when locally locked out the remote system operator should still be able to assert system RESET POWER and NMI signals through the MegaRAC M300V card Also remote lock out has no affect on the ability to use remote human interface devices such as remote...

Страница 77: ...I signals The DVI I signals are used by MegaRAC M300V card for the purpose of video redirection in the KVMoIP Keyboard Video and Mouse redirection through internet protocol feature The DVI signals should be properly terminated on the motherboard to handle the case where either no MegaRAC M300V card is installed or where a MegaRAC M300V card that does not support KVMoIP is installed ICMB RS 485 Lev...

Страница 78: ...hake signal MUX must route the UART handshake signals from the MegaRAC M300V card connector to the system serial port connector when MCARD_AUX_SoL_CTRL_L is active When MCARD_AUX_SoL_CTRL_L is inactive the system UART handshake signals are routed to the system serial port connector Support for Dedicated Management LAN The MegaRAC M300V card uses a dedicated management NIC The motherboard must rout...

Страница 79: ...quirements the motherboard designer should carefully consider which I2 C or SMBus expander based GPIO signals may or may not require interrupting capabilities for manageability functions and then select the proper type of GPIO expander accordingly Motherboard Support for MegaRAC M300V SCI Interrupt Signal The motherboard must route the MCARD_SCI_INT_L signal from the OPMA connector to an input on ...

Страница 80: ...74 MegaRAC M300V Card Implementer s Reference and User s Guide ...

Страница 81: ...C M300V card for example an SMBus based GPIO expander If the MegaRAC M300V card is found to be present the BIOS then determines which IPMI interface to use for sending IPMI commands BIOS and other system software reads the card detect signal and then determine the MegaRAC M300V card presence Card Detect Signal States Card Detect State Meaning Asserted Low The MegaRAC M300V card is installed in the...

Страница 82: ... any ACPI state other than mechanical off This is because the BMC is powered at all times except during the Mechanical Off state If the interface ID bits remain 111b for the full 25 seconds BIOS should assume that a problem exists with the MegaRAC M300V card and print this fact to the POST screen BIOS must wait an additional 50 ms beyond the initial detection of any pattern other than 111b before ...

Страница 83: ...ia KCS interface BMC firmware revision put revision strong here BMC self test PASSED MegaRAC M300V card is detected but the INTERFACE_ID bits always read back 111b MCard detected in OPMA connector Timeout waiting for interface ID reporting MegaRAC M300V card is detected INTERFACE_ID indicates that it uses the KCS interface but does not respond to IPMI commands on that interface MCard detected in O...

Страница 84: ...ce and User s Guide System Identification The system BIOS must contain a system identification OEM ID and management sensor implementation ID The BIOS communicates this information to the BMC as part of the POST BIOS BMC synchronization process ...

Страница 85: ...Circuit Block Diagram 67 Fan Speed Control PWM to DC Converter Circuit Example 67 Fan Tach Monitoring Circuit Block Diagram 66 Fan Tach Monitoring Circuit Example 66 Fan Tach MUX Bank Selector Signals 35 Fan Tachometer Read Back 65 Features 2 Firmware Debugger Probe Signals 43 Firmware Update 30 G General Information Group 14 General Signal Termination 65 I I2C or SMBus Signals 41 ICMB RS 485 Leve...

Страница 86: ...ings 17 21 O OPMA Connector Specification and Pin Assignments 49 OPMA Feature Card Power Requirements 45 OPMA Hardware Resources 44 OPMA LAN and Serial Port Connector Scheme 55 OPMA Signals Grouped by Function 46 P Partial Circuit Example for Local Access Lock Out 70 Pin Assignments for the OPMA Connector 49 Possible UART Configurations 62 Power Status and Control 29 Push Button Signals 32 R Refer...

Страница 87: ...Index 81 ...

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