The iformatio cotaied herei is proprietary to SMSC, ad shall be used solely i accordace with the agreemet pursuat to which it is provided. Although the iformatio is believed to be accurate, o resposibility is assumed for iaccuracies. SMSC reserves the right to make chages to this documet ad to specificatios ad product descriptios at ay time without otice. Neither the provisio of this iformatio or the sale of the described semicoductor devices coveys ay liceses uder ay patet rights or other itellectual property rights of SMSC or others, uless specifically specified otherwise. The product may cotai desig defects or errors kow as aomalies, icludig but ot ecessarily limited to ay which may be idetified i this documet, which may cause the product to deviate from published specificatios. SMSC products are ot desiged, iteded, authorized or warrated for use i ay life support or other applicatio where product failure could cause or cotribute to persoal ijury or severe property damage. Ay ad all such uses without prior writte approval of a officer of SMSC will be fully at the risk of the customer. SMSC is a registered trademark of Stadard Microsystems Corporatio ( SMSC ). SMSC DISCLAIMS AND EXCLUDES ANY AND ALL WARRANTIES, INCLUDING WITHOUT LIMITATION ANY AND ALL IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, TITLE, AND AGAINST INFRINGEMENT AND THE LIKE, AND ANY AND ALL WARRANTIES ARISING FROM ANY COURSE OF DEALING OR USAGE OF TRADE. IN NO EVENT SHALL SMSC BE LIABLE FOR ANY DIRECT, INCIDENTAL, INDIRECT, SPECIAL, PUNITIVE, OR CONSEQUENTIAL DAMAGES; OR FOR LOST DATA, PROFITS, SAVINGS OR REVENUES OF ANY KIND; REGARDLESS OF THE FORM OF ACTION, WHETHER BASED ON CONTRACT; TORT; NEGLIGENCE OF SMSC OR OTHERS; STRICT LIABILITY; BREACH OF WARRANTY; OR OTHERWISE; WHETHER OR NOT ANY REMEDY OF BUYER IS HELD TO HAVE FAILED OF ITS ESSENTIAL PURPOSE, AND WHETHER OR NOT SMSC HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. 1
1 Overview The EMC140X series of devices are SMBus temperature sesors with THERM ad ALERT outputs. The EMC142X series of devices have Hardware Thermal Shutdow outputs i place of THERM. The EMC1402 ad EMC1422 each moitor oe iteral diode ad oe exterally coected temperature diode.the EMC1403 ad EMC1423 each moitor oe iteral diode ad two exterally coected temperature diodes. Ad fially, the EMC1404 ad EMC1424 each moitor oe iteral diode ad up to three exterally coected temperature diodes. All of the modes ad fuctios of the EMC140X/2X ca be tested ad observed with the EVB- EMC14XX. The EVB-EMC14XX is a USB-based platform for evaluatig all variatios of the EMC140X/2X. A block diagram of this EVB is show i Figure 1.1. 1.1 Related Documets The CD icluded with the evaluatio board cotais the followig documets: Evaluatio Board Checklist Bill Of Materials Schematic Jumper Settigs ad Coector List Datasheets Chip Maager Applicatio Chip Maager Register Defiitio Files (EMC1402.xml, EMC1403.xml, EMC1404.xml, EMC1422.xml, EMC1423.xml, ad EMC1424.xml) Figure 1.1 EVB-EMC14XX Block Diagram 2
2 Gettig Started 2.1 System Requiremets To use the EVB you will eed: A PC ruig Widows 2000 or XP Display resolutio 800x600 (or larger to view several widows simultaeously) A available USB port 2.2 Feature Summary The SMSC Chip Maager (ChipMa) applicatio allows viewig ad chagig register values Graphig of ay register Headers for coectig a remote diode or CPU/GPU Resistace Error Correctio verificatio Savig of settigs of all registers allowig for quick loadig at a later time USB commuicatio to evaluatio board A exteral SMBus master may also be used via jumper settigs 2.3 Istallig the EVB 1. Istall the Chip Maager applicatio ad device driver o a PC by ruig Setup.exe from the Chip Maager distributio CD. A revisio history ad istall/u-istall otes may be foud i the readme.txt file o the disk. 2. Coect the supplied USB cable to a available USB port o the PC. Plug the mii-b ed of the USB cable ito EVB coector P6. The +3.3V ad Bridge ACT LEDs should illumiate. After the EVB is coected to the PC the Fid New Hardware wizard will pop up for USB driver istallatio. Follow the istructios i the readme.txt file to complete the istallatio process. 3. Start the EVB Software by selectig the Chip Maager applicatio from the SMSC folder from the Programs Widows Start meu. The EVB will iitialize ad the Chip Maager Quick Help scree will appear as i Figure 2.1. The USBAct LED should be blikig whe the Chip Maager is ruig. For more help with Chip Maager, select Help -> Cotets for a html based help documet as show i Figure 2.2. Note: The SMSC Chip Maager applicatio allows viewig ad chagig register values for a variety of EVBs icludig the EMC1001, EMC1002, EMC1023, EMC1033 ad EMC2101. The Chip Maager software oly eeds to be istalled oce to support all of these EVBs. The list of supported EVBs may be foud i the pulldow meu uder Optios -> Select Device. 3
Figure 2.1 Chip Maager Quick Help Startup Scree 4
Figure 2.2 Chip Maager Help Scree 5
2.4 Board Layout The EVB was desiged for ease of use ad user experimetatio with easily accessible jumpers ad access to the SMBus data lies. Figure 2.3 below shows the silk-scree for the EVB-EMC14XX. Figure 2.3 EVB-EMC14XX Board Outlie ad Silk-scree 6
3 Hardware Descriptio 3.1 Itroductio The EVB-EMC14XX provides the meas to demostrate all of the EMC140X/2X features ad to view ad modify registers. LEDs idicate status iformatio ad test poits are icluded to moitor system voltages with a user provided voltmeter or oscilloscope. 3.2 EMC140X/2X Devices A total of four of six SMSC devices are o-board the EVB-EMC14XX. Jumpers eable which versio is active o the EVB. Please cotact SMSC for boards with the EMC1423 or EMC1424 devices. 3.3 USB to SMBus Bridge The USB to SMBus bridge is based o a 8051 micro cotroller with itegrated USB ad SMBus iterfaces as well as iteral flash ad RAM. Durig EVB maufacture, firmware is loaded ito the bridge that provides the iterface betwee the USB ad the SMBus. Power is sourced to the micro cotroller from the USB iterface for device power ad commuicatio. 3.3.1 Direct SMBus Coect Optio It is also possible to coect a exteral SMBus master to the EVB-EMC14XX. A few jumper settigs are all that is required to drive the ay oe of the devices o-board the EVB: Simply remove the jumpers o JP6 ad coect the SMBus master to the SCL, SDA ad ALERT pis, as well as a exteral supply for +3.3V. The +3.3V ca be supplied by the SMBus bridge by leavig the +3.3V jumper i place ad retaiig the USB coectio. 3.4 Coectig to Remote Diodes This EVB is populated with jumpers to coect to a exteral diode or CPU/GPU. If coectig to a CPU s thermal diode, it is ecessary to provide a commo groud. Also, it is usually ecessary to bias the appropriate CPU Vcc plae above this commo groud to avoid forward-biasig the ESD diodes with the temperature sesor sigals. These coectios have bee provided o JP11 which is read by EMC1422. Cosult the CPU maufacturer s datasheet for guidace o iterfacig to the thermal diode. Refer to the schematic EMC14XX_EVB_SCH-7092-A.pdf for details o the EVB header coectios. 3.5 Resistace Error Correctio (REC) The remote diode DN sigal path has a 100 ohm series resistor to demostrate the EMC140X/2X s REC feature. See Table 3.3 for details o the REC jumper settigs. 3.6 Power Source This EVB requires oly oe USB coectio to power the etire board. The USB-SMBus bridge regulates the +5V USB power to +3.3V used by the EMC140X/2X ad other EVB circuitry. 3.7 Test Poits Test poits are provided for: Groud +3.3V power +5V_USB power ALERT, THERM, ad SYS_SHDN outputs 7
3.8 LED Idicators LEDs idicate the status of the followig sigals (Table 3.1). Table 3.1 LED Status Idicators LED SIGNAL OFF GREEN RED LED1 ALERT +3.3V power OFF No ALERT ALERT LED2 +3.3V +3.3V power OFF +3.3V power ON NA LED3 Bridge Activity NO Activity o USB/SMBus Bridge Activity o USB/SMBus Bridge NA LED4 USB Activity NO Activity o USB port Activity o USB port NA LED5 SYS_SHDN +3.3V power OFF No SYS_SHDN SYS_SHDN LED6 THERM +3.3V power OFF No THERM THERM LED7 ALERT/THERM +3.3V power OFF No ALERT/THERM ALERT/THERM LED02 EMC1402 power device OFF device ON NA LED03 EMC1403 power device OFF device ON NA LED04 EMC1404 power device OFF device ON NA LED22 EMC1422 power device OFF device ON NA LED23 EMC1423 power device OFF device ON NA LED24 EMC1424 power device OFF device ON NA 3.9 Jumper Settigs This EVB has may jumper cofiguratios to evaluate all of the features of the EMC140X/2X family of devices. The first jumper the user should coect is the device eable jumper. This jumper will determie which of the 6 devices will be powered up ad evaluated. Table 3.2 Device Selectio Jumpers DEVICE ENABLE DISABLE EMC1402 JP1: short 1-2 JP1: short 2-3 EMC1403 JP2: short 1-2 JP2: short 2-3 EMC1404 JP3: short 1-2 JP3: short 2-3 EMC1422 JP4: short 1-2 JP4: short 2-3 EMC1423 JP5: short 1-2 JP5: short 2-3 EMC1424 JP6: short 1-2 JP6: short 2-3 The remote diode o board the EVB-EMC14XX has a i-lie series resistace adjustmet. Checkig the REC (Resistace Error Correctio) feature of the EMC1402 is accomplished by settig the jumper o JP16 as show i Table 3.3. A ope jumper adds 100 ohms of series resistace to the DN lie of the diode coectio. To retur to 0 ohm series resistace, replace the jumper o JP16. This feature 8
is demostrated o the EMC1402 oly. However, each device of the EMC140X/2X family has this feature. Table 3.3 Resistace Error Correctio JUMPER NAME OPEN SHORT JP16 REC 100 ohms i DN lie (diode remote -) 0 ohms i DN lie (diode remote -) This EVB also allows for a to be tested (see Table 3.4). This is doe by removig both jumpers of the device of iterest. The coect Pi 1 to the remote+ termial of the remote diode ad Pi 3 to the remote- termial of the remote diode. Make sure a commo groud exists betwee the remote diode (GPU, etc.) ad the EMC140X/2X EVB. Also esure that the remote diode is properly biased accordig to the diode maufacture. Oe remote coectio is provided per EMC140X/2X device. Table 3.4 Remote Diode Cofiguratios JUMPER CONFIGURATION PIN 1 PIN 2 PIN 3 PIN 4 JP7 JP8 JP9 JP10 JP13 JP14 JP15 O-board diode EMC1402 (Q1) short / DP short / DN Off-board diode (CPU, GPU, etc.) remote + / DP ope remote - / DN ope O-board diode EMC1403 (Q3) short / DP short / DN Off-board diode (CPU, GPU, etc.) remote + / DP ope remote - / DN ope O-board diode EMC1404 (Q5) short / DP short / DN Off-board diode (CPU, GPU, etc.) remote + / DP ope remote - / DN ope O-board diode EMC1404 (Q6) short / DP short / DN Off-board diode (CPU, GPU, etc.) remote + / DP ope remote - / DN ope O-board diode EMC1423 (Q8) short / DP short / DN Off-board diode (CPU, GPU, etc.) remote + / DP ope remote - / DN ope O-board diode EMC1424 (Q10) short / DP short / DN Off-board diode (CPU, GPU, etc.) remote + / DP ope remote - / DN ope O-board diode EMC1424 (Q12) short / DP short / DN Off-board diode (CPU, GPU, etc.) remote + / DP ope remote - / DN ope Table 3.5 EMC1422 Off-board Diode Coectios CONFIGURATION JUMPER PIN 1 PIN 2 PIN 3 PIN 4 O-board diode EMC1422 (Q7) JP12 NA NA Short / DP Short / DN JP11 NA NA 9
CONFIGURATION JUMPER PIN 1 PIN 2 PIN 3 PIN 4 Off-board diode (CPU, GPU, etc.) JP12 Ope Ope NA NA JP11 remote + / DP remote - / DN Vbias GND 10
A uique feature of the EMC142X series of devices is the ability to select the Hardware System shutdow temperature based o the pull up resistor o the ALERT ad SYS_SHDN outputs. The EVB allows the user to quickly evaluate each of the 36 temperature values by adjustig JP18 ad JP17 as show i Table 3.6. Table 3.6 ALERT ad SYS_SHDN Resistor Selectio for SYS_SHDN Temperature SYS_SHDN PULL-UP R53 JP18: 1-2 R54 JP18: 3-4 R55 JP18: 5-6 R56 JP18: 7-8 R57 JP18: 9-10 R58 JP18: 11-12 ALERT PULL-UP 4.7K OHM ±10% 6.8K OHM ±10% 10K OHM ±10% 15K OHM ±10% 22K OHM ±10% 33K OHM ±10% R47 JP17: 1-2 4.7K OHM ±10% R48 JP17: 3-4 6.8K OHM ±10% R49 JP17: 5-6 10K OHM ±10% R50 JP17: 7-8 15K OHM ±10% R51 JP17: 9-10 22K OHM ±10% R52 JP17: 11-12 33K OHM ±10% 77 C 83 C 89 C 95 C 101 C 107 C 78 C 84 C 90 C 96 C 102 C 108 C 79 C 85 C 91 C 97 C 103 C 109 C 80 C 86 C 92 C 98 C 104 C 110 C 81 C 87 C 93 C 99 C 105 C 111 C 82 C 88 C 94 C 100 C 106 C 112 C 11
3.10 Default Jumper Settigs Table 3.7 Default Jumper Settigs JUMPER NAME CONNECTION DESCRIPTION JP1 EMC1402 Power 2 3 Power o EMC1402 Tur off EMC1402 JP2 EMC1403 Power 1 2 2-3 Power o EMC1403 Tur off EMC1403 JP3 EMC1404 Power 1 2 2-3 Power o EMC1404 Tur off EMC1404 JP4 EMC1422 Power 1 2 2-3 Power o EMC1422 Tur off EMC1422 JP5 EMC1423 Power 1 2 2-3 Power o EMC1423 Tur off EMC1423 JP6 EMC1424 Power 1 2 2-3 Power o EMC1424 Tur off EMC1424 JP7 EMC1402 DP coectio DN coectio JP8 EMC1403 DP coectio DN coectio JP9 EMC1404 DP coectio DN coectio JP10 EMC1404 DN coectio for ati-parallel diode DP coectio for ati-parallel diode JP11/JP12 EMC1422 JP12.1 - JP11.1 JP12.2 - JP11.2 DP coectio DN coectio JP11.3 Vbias ~ +0.7V JP11.4 Groud JP13 EMC1423 DP coectio DN coectio JP14 EMC1424 DP coectio DN coectio JP15 EMC1424 DN coectio for ati-parallel diode DP coectio for ati-parallel diode JP16 REC * IN = 0 ohms, OUT = 100 ohms i 12
JUMPER NAME CONNECTION DESCRIPTION JP17 ALERT pull-up 3 4 5 6 7 8 9 10 11 12 Select 4.7k ohm resistor Select 6.8k ohm resistor Select 10k ohm resistor Select 15k ohm resistor Select 22k ohm resistor Select 33k ohm resistor JP18 SYS_SHDN Select 4.7k ohm resistor pull-up 3 4 Select 6.8k ohm resistor 5 6 Select 10k ohm resistor 7 8 Select 15k ohm resistor 9 10 Select 22k ohm resistor 11 12 Select 33k ohm resistor JP19 USB to SMBus 5-6 7-8 +3.3V SDA - SMBus SCL - SMBus ALERT JP20 Flash Prog Header NA Used i maufacturig Note: dashed lie idicates jumper positio 3.11 Other Sesor Features Other features such as Ideality Factor Cofiguratio, Coversio Rate, Digital Filterig, ad Stadby Mode ca be cotrolled with EMC140X/2X registers. See the datasheet register descriptio for details. 13
4 Software Descriptio 4.1 Chip Maager Overview The Chip Maager (ChipMa) applicatio iitially displays the mai Help scree, where detailed descriptio of the applicatio s features may be foud. The Help screes ca be displayed at ay time by selectig Help from the meubar. Chip Maager eables the user to display temperature readigs, set temperature limits ad read/write cofiguratio register values. 4.2 Temperature/Register History Graph To ope a Temperature or Register History Graph widow, select the register or registers to plot i the Chip Maager applicatio. the select Optios -> Plot Register Data from the meubar. Oce the graph appears, select Cotrol -> Start to begi plottig data. The history plot cotiuously updates the register data reported by the EMC140X/2X. Figure 4.1below is a typical Temperature History with the exteral diode of the EMC1402 startig at room temp ad the beig heated by simply placig a figer o Q1.: Figure 4.1 EMC140X/2X Temperature History Graph 14