I-STMicroelectronics TN1317 Self Test Configuration ye-SPC58xNx Device
Isingeniso
Lo mbhalo uhlinzeka ngemihlahlandlela mayelana nendlela yokumisa iyunithi yokulawula ukuzihlola (STCU2) futhi uqale ukwenza ukuzihlola. I-STCU2 kudivayisi ye-SPC58xNx iphatha kokubili Ukuzihlola Kwenkumbulo Ne-Logic Built-In Self (MBIST ne-LBIST) yedivayisi. Ama-MBIST nama-LBIST angathola ukwehluleka okucashile okuthinta izinkumbulo eziguquguqukayo namamojula anengqondo. Umfundi kufanele abe nokuqonda okucacile kokusetshenziswa kokuzihlola. Bheka ISithasiselo A Sesigaba ukuze uthole ama-Akhronimi, izifinyezo nemibhalo eyireferensi ukuze uthole imininingwane eyengeziwe.
Kuphelileview
- I-SPC58xNx isekela kokubili i-MBIST ne-LBIST.
- I-SPC58xNx ihlanganisa:
- Ukusikeka kwenkumbulo okungu-92 (kusuka ku-0 kuye ku-91)
- I-LBIST0 (ukuphepha kwe-LBIST)
- 6 LBIST yokuxilonga(1) (kusuka koku-1 kuye koku-6)
I-LBIST
I-LBIST yokuxilongwa kufanele isebenze lapho imoto isegaraji hhayi ngenkathi uhlelo lokuphepha lusebenza. Umfundi angabheka uhlu oluphelele esahlukweni 7 (Ukucushwa Kwedivayisi) semanuwali yereferensi ye-RM0421 SPC58xNx.
Ukuzihlola ngokwakho
Ukuzihlola kungasebenza kumodi ye-inthanethi noma engaxhunyiwe ku-inthanethi.
Ukucushwa kwe-MBIST
- Ukuze ufinyelele ukuhwebelana okungcono kakhulu mayelana nokusetshenziswa nesikhathi sokwenza, sincoma ukuhlukanisa ama-MBIST abe ukuhlukaniswa okungu-11. Izingxenye ze-MBIST zokuhlukanisa okufanayo zigijima ngokuhambisana.
- Ukuhlukaniswa okungu-11 kusebenza ngemodi elandelanayo. Okwesiboneloample:
- zonke izingxenye ze-MBIST zokuhlukaniswa_0 ziqala ngokuhambisana;
- ngemva kokusetshenziswa, zonke izingxenye ze-MBIST zokuhlukaniswa_1 ziqala ngokuhambisana;
- njalonjalo.
- Uhlu oluphelele lokuhlukaniswa kanye nama-MBIST luboniswa ku-split kanye nencwadi yokusebenzela ye-DCF Microsoft Excel® enamathiselwe files.
Ukucushwa kwe-LBIST
- Kumodi engaxhunyiwe ku-inthanethi, ngokuvamile i-LBIST0 kuphela esebenzayo, leyo ibhithi yokuphepha (ukuqinisekisa i-ASIL D). Yi-BIST yokuqala ekucushweni kokuzihlola (isikhombi esingu-0 kurejista ye-LBIST_CTRL).
- Kumodi eku-inthanethi umsebenzisi angakhetha ukusebenzisa amanye ama-LBIST (kusuka ku-1 kuye ku-6) ukuze asetshenziswe ukuxilonga. Zihlanganisa:
- I-LBIST1: gtm
- I-LBIST2: hsm, ithunyelwe, emios0, psi5, dspi
- LBIST3: can1, flexray_0, memu, emios1, psi5_0, fccu, ethernet1, adcsd_ana_x, crc_0, crc_1, fosu, cmu_x, bam, adcsd_ana_x
- LBIST4: psi5_1, ethernet0,adcsar_dig_x, adcsar_dig_x, iic, dspi_x, adcsar_seq_x, adcsar_seq_x, linlfex_x, pit, ima, cmu_x, adgsar_ana_wrap_x
- I-LBIST5: inkundla
- LBIST6: can0, dma
Uhlu lwe-DCF lokucushwa okungaxhunyiwe ku-inthanethi
I-MBIST ne-LBIST0 ingasebenza ngokungaxhunyiwe ku-inthanethi kufikela ku-100 MHz njengefrikhwensi enkulu. Incwadi yokusebenzela ye-DCF Microsoft Excel® inamathiselwe file ibika uhlu lwe-DCF oluzolungiswa ukuze kuqaliswe i-MBIST ne-LBIST phakathi nesigaba sokuqalisa (imodi yokungaxhunyiwe ku-inthanethi). Bathatha cishe 42 ms.
Abaqaphi ngesikhathi sokuzihlola
- Izigaba ezimbili ezihlukene zinomthelela ekusebenzeni kokuzihlola (Bona i-RM0421 SPC58xNx reference manual).
- Ukuqalisa (ukulayisha ukulungiselelwa). I-SSCM (imodi engaxhunyiwe ku-inthanethi) noma isofthiwe (imodi ye-inthanethi) ilungiselela ama-BIST ngokuhlela i-STCU2.
- Ukuzihlola ngokwakho. I-STCU2 yenza ukuzihlola.
- Izinja ezimbili ezihlukene ziqapha lezi zigaba.
- I-watchdog enekhodi eqinile iqapha isigaba "sokuqalisa". Kuyi-watchdog yehadiwe elungiselelwe ku-0x3FF.
- Umsebenzisi akakwazi ukukulungisa. Iwashi le-watchdog enekhodi eqinile lincike kumodi yokusebenza:
- I-oscillator ye-IRC kumodi engaxhunyiwe ku-inthanethi
- Iwashi le-STCU2 kwimodi ye-inthanethi
- Isibali sikhathi se-Watchdog (WDG) siqapha "ukwenziwa kokuzihlola". Kuyi-hardware watchdog elungiseka ngumsebenzisi (irejista ye-STCU_WDG). Umsebenzisi angakwazi ukuhlola isimo se-“STCU WDG” ngemva kokusetshenziswa kwe-BIST kurejista ye-STCU_ERR_STAT (ifulegi le-WDTO).
Iwashi le-"STCU WDG" lincike kumodi yokusebenza:
- Ilungiseka nge-STCU_PLL (IRC noma i-PLL0) kumodi engaxhunyiwe ku-inthanethi;
- Ilungiseka nge-software kwimodi ye-inthanethi.
I-watchdog enekhodi eqinile ivuselela ngesikhathi sokuqalisa
Isikhathi sokuvala se-watchdog enekhodi eqinile imijikelezo yewashi engu-0x3FF. I-SSCM noma isofthiwe kufanele ngezikhathi ezithile ivuselele i-watchdog enekhodi eqinile ngokuhlela ukhiye2 we-STCU2. Ukuze enze lo msebenzi, umsebenzisi kufanele ahlukanise nohlu lwamarekhodi e-DCF (imodi engaxhunyiwe ku-inthanethi) noma ukufinyelela kokubhala kumarejista we-STCU2 (imodi ye-inthanethi) ngokubhala kurejista ye-STCU2 key2. Endabeni ye-BIST engaxhunyiwe ku-inthanethi, ukubhala okukodwa kwerekhodi le-DCF kuthatha imijikelezo yewashi eyi-17. Njengoba i-watchdog enekhodi eqinile iphelelwa yisikhathi ngemva kwemijikelezo yewashi engu-1024, umsebenzisi kufanele ayivuselele njalo kumarekhodi angama-60 e-DCF. Qaphela: I-watchdog iphelelwa yisikhathi ngemva kwemijikelezo yewashi engu-1024. Ukubhala kwe-DCF okukodwa kuthatha imijikelezo yewashi eyi-17. I-STCU2 yamukela amarekhodi afika kwangu-60 e-DCF ngaphambi kokuthi i-hard-watchdog iphelelwe yisikhathi (1024/17 = 60). Esimeni se-BIST eku-inthanethi, isikhathi sokuvuselela (STCU2 key2 ukubhala) sincike kuhlelo lokusebenza.
Ukucushwa kwemodi ye-inthanethi
Kumodi ye-inthanethi uhlu oluhlukene lwe-MBIST luhlala lufana nokulinganiselwa okuthile ngenxa yomjikelezo wempilo. Wonke ama-MBIST angasebenza ngemodi ye-inthanethi kuphela ekukhiqizeni kwe-ST nokuhlaziya ukwehluleka (FA). Kweminye imijikelezo yempilo, i-HSM/MBIST ne-Flash MBIST azifinyeleleki. Kulesi simo, imvamisa ephezulu ye-MBIST ngu-200 MHz futhi inikezwa yi-sys_clock. I-LBIST yokuxilonga ingafika ku-50 MHz, kuyilapho i-LBIST 0 ingagijima ifike ku-100 MHz. Uma kunjalo, amarejista e-STCU2 angacushwa ngekholomu “yenani lokubhalisa” lohlu lwe-DCF. file.
Isifinyezo
Ku-SPC58xNx kokubili i-MBIST ne-LBIST ingasebenza. Ngesikhathi ungaxhunyiwe ku-inthanethi, i-LBIST0 nawo wonke ama-MBIST angasebenza ngokuya ngokulungiselelwa kokuhlukaniswa. Ngesikhathi semodi eku-inthanethi, i-LBIST yokuxilongwa ingasebenza nayo.
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I-STMicroelectronics TN1317 Self Test Configuration ye-SPC58xNx Device [pdf] Imaniwali yosebenzisayo I-TN1317, Ukucushwa Kokuzihlola Kwedivayisi ye-SPC58xNx, Ukucushwa Kwedivayisi ye-SPC58xNx, Ukucushwa Kokuzihlola, TN1317, Ukuzihlola |
