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MAX17841B 数据表(PDF) 26 Page - Maxim Integrated Products |
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MAX17841B 数据表(HTML) 26 Page - Maxim Integrated Products |
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26 / 33 page  READ ADDRESS WRITE ADDRESS DEFAULT VALUE NAME 0x01 NA 11h RX_Status 0x03 NA 13h TX_Status 0x05 0x04 00h RX_Interrupt_Enable 0x07 0x06 00h TX_Interrupt_Enable 0x09 0x08 00h RX_Interrupt_Flags 0x0B 0x0A 80h TX_Interrupt_Flags 0x0D 0x0C 60h Configuration_1 0x0F 0x0E 10h Configuration_2 0x11 0x10 0Fh Configuration_3 0x13 NA 00h FMEA 0x15 NA 84h Model 0x17 NA 12h Version 0x19 NA 01h RX_Byte 0x1B NA 3Eh RX_Space 0x95 NA 00h TX_Queue_Selects 0x97 NA 00h RX_Read_Pointer 0x99 NA 01h RX_Write_Pointer 0x9B NA 00h RX_Next_Message RX_STATUS REGISTER ADDRESS BITS DEFAULT NAME DESCRIPTION 0x01 (Read) (Note1) 7 0 RX_Error_Status ThedatabyteatlocationRX_RD_Pointermay contain an error (the corresponding character contained a Manchester and/or parity error). This bit is set when the byte is read, not when the byte is received or written. 6 0 Reserved Alwaysreadslogiczero. 5 0 RX_Busy_Status The UART is busy receiving data. 4 1 RX_Idle_Status The UART is not receiving data. 3 0 RX_Overflow_Status ThedatabyteatlocationRX_WR_POINTERinthe receivebufferwasoverwrittenbecausethereceive bufferwasfull.Clearedwhenthereceivebufferisnot full(whenthebufferisread). 2 0 RX_Full_Status Thenumberofemptybytesinthereceivebufferis less than the length of the message in the transmit queue. 1 0 RX_STOP_Status TheUARThasfinishedreceivingaproperlyframed message (stop character) and it is ready to be read. The UART clears this bit after all unread messages have been read or if the UART detects a new preamble character. The UART does not set this bit if thebufferisemptyanditreceivesastopcharacter. 0 1 RX_Empty_Status Thereceivebufferisclearedandcontainsnounread data(RX_RD_Pointer=RX_WR_Pointer-1). Register Table Maxim Integrated │ 26 MAX17841B Automotive SPI Communication Interface (ASCI) www.maximintegrated.com |
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