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L99H92 Datasheet(PDF) 47 Page - STMicroelectronics |
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L99H92 Datasheet(HTML) 47 Page - STMicroelectronics |
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47 / 77 page  6 SPI registers 6.1 Global status byte GSB Table 42. Global status byte GSB Bit 23 Bit 22 Bit 21 Bit 20 Bit 19 Bit 18 Bit 17 Bit 16 1 (R) 0 (R) 0 (R) 0 (R) 0 (R) 0 (R) 0 (R) 0 (R) GSBN RSTB SPIE - FE DE GW FS Global status bit not ReSeT bit SPI error Reserved bit Functional error Device error Global warning Fail-safe Bit Name Description 23 GSBN Global status bit not The GSBN bit is a logically NOR combination of GSB bits from bit 16 to bit 22. This bit can also be used as global error flag without starting a complete communication frame as it is present at SDO after pulling CSN low. 0 = error detected (1 or several GSB bits from 16 to 22 are set) 1 = no error detected 22 RSTB Reset bit The RSTB bit indicates that all the device registers have been reset to default. By default it is set to one coming out from standby mode. It is cleared automatically after any valid SPI communication frame. 21 SPIE SPI error bit The SPIE bit indicates errors related to any wrong SPI communication. • SPI CLK count error • Parity error • Read/Write to wrong address • SDI stuck at • CSN timeout This bit is visible inside the communication frame following the not valid one. This bit is cleared automatically by any valid SPI communication frame. 0 = no error (default) 1 = error detected 20 RES Reserved 19 FE Functional error bit The FE bit is a logical OR combination of errors coming from application specific functional blocks. • Overcurrent status flags (DSHSx, DSLSx) 0 = no error (default) 1 = error detected The FE bit is cleared by a Read & Clear command of the overcurrent status flags. 18 DE Device error bit The DE bit is a logical OR combination of errors related to the device specific blocks. • VDH overvoltage status flag (VDHOV) • VDH undervoltage status flag (VDHUV) • VDD overvoltage status flag (VDDOV) • Thermal shutdown status flag (TSD) • Charge pump not ready status bit (NRDY) • Charge pump low status flag/bit (CPLOW) • Digital input/output over-voltage status flag (DIOOV) L99H92 SPI registers DS14069 - Rev 4 page 47/77 |
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