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TLC6989 Datasheet(PDF) 20 Page - Texas Instruments |
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TLC6989 Datasheet(HTML) 20 Page - Texas Instruments |
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20 / 72 page  7.3.4.10 Diagnostics Table Table 7-1. Diagnostics Table FAULT TYPE DETECTION CRITERIA CONDITIONS FAULT ACTIONS FAULT OUTPUT FAULT PIN VCC UVLO VCC < VUVF Device switch to Unpowered state FLAG_POR FLAG_ERR Constant pulled down Oscillator error tWD,OSC overflows No action FLAG_OSC FLAG_ERR Constant pulled down SPI communication loss fault tSPI_WDT overflows Device enters FAILSAFE state DEV_STATE = FAILSAFE FLAG_ERR Constant pulled down SPI command timeout fault tSPI_RST_TIMEOUT overflows Reset SPI logic FLAG_SPI_TIMEOUT FLAG_SPI FLAG_ERR Constant pulled down SPI Chip Select (CS) fault CS pin is pulled high in middle of SPI command Reset SPI logic FLAG_SPI_CS FLAG_SPI FLAG_ERR Constant pulled down SPI CRC error Calculated CRC is different than received CRC No action FLAG_SPI_CRC FLAG_ERR (maskable) Constant pulled down (maskable) Register write failure CCSICTRL is written during CCSI controller/peripheral activity No action FLAG_SPI_REG_WRITE No action SIN stuck error tWD,SIN overflows No action FLAG_CCSI_SIN FLAG_CCSI FLAG_ERR (maskable) Constant pulled down (maskable) CCSI CHECK bit error CHECK bit is not the inverted of the 16th bit value No action FLAG_CCSI_CHECK_BIT FLAG_CCSI FLAG_ERR (maskable) Constant pulled down (maskable) CCSI CRC error CCSI SOUT Head_bytes and Data_bytes_N result in a different CRC value than what is received on SIN Head_bytes = VSYNC (0xAAF0) or write FCx (0xAA00 - 0xAA0F) No action FLAG_CCSI_CRC FLAG_CCSI FLAG_ERR (maskable) Constant pulled down (maskable) CCSI Command Queue overflow Command queue is full and SPI receives new CCSI command CCSI controller stops (if ongoing) and TXFFST is set to 0 FLAG_CCSI_CMD_QUEUE_OVF FLAG_CCSI FLAG_ERR Constant pulled down TXFIFO overflow TXFFST = 511 and SPI data word needs to be stored SPI command type starts with FWD CCSI controller stops (if ongoing) and TXFFST is set to 0 FLAG_TXFFOVF FLAG_TXFF FLAG_ERR Constant pulled down TXFIFO underflow TXFFST = 0 and CCSI controller requests a new word for transmission CCSI controller stops FLAG_TXFFUVF FLAG_TXFF FLAG_ERR Constant pulled down TLC6989 SLVSHF5 – NOVEMBER 2024 www.ti.com 20 Submit Document Feedback Copyright © 2024 Texas Instruments Incorporated Product Folder Links: TLC6989 |
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