topic SC16IS741A Default behavior in Digital Signal Controllers https://community.nxp.com/t5/Digital-Signal-Controllers/SC16IS741A-Default-behavior/m-p/853195#M1445 <HTML><HEAD></HEAD><BODY><P>Hello. I try to figure out what's the factory default behavior of the SC16IS741A chip, without any configuration encoded whatsoever, in SPI mode.</P><P>- First will it be usable as is, with factory default? Or am I forced to encode configuration setting registers to make it work? (Assuming default settings are OK for my application)<BR />And if yes what will do basically, in SPI mode.</P><P>- Is the default word format is 8N1. The datasheet indicates that "no parity" is "default normal condition". But it doesn't indicates the default condition for the stop bit (Is it 1 or 2?).<BR />It would be 0-1 if LCR[2] default is 0. (how could it be without stop bit ???)<BR />And it doesn't indicate the default value for the word length. Here, if the value in LCR[1] and [0] the word length would 5, which is very strange.<BR />So, what are the default values for LCR[2],[1] and [0]?</P><P>- In SPI mode, as FIFO is left disabled by default, is it necessary to send a read request ("10000000" followed by the response) or would data flow automatically from RX to SO?<BR />And vice versa: Would it be necessary to send a write request instead of just feeding the data through the circuit?</P></BODY></HTML> Tue, 22 Jan 2019 19:14:38 GMT projects1 2019-01-22T19:14:38Z SC16IS741A Default behavior https://community.nxp.com/t5/Digital-Signal-Controllers/SC16IS741A-Default-behavior/m-p/853195#M1445 <HTML><HEAD></HEAD><BODY><P>Hello. I try to figure out what's the factory default behavior of the SC16IS741A chip, without any configuration encoded whatsoever, in SPI mode.</P><P>- First will it be usable as is, with factory default? Or am I forced to encode configuration setting registers to make it work? (Assuming default settings are OK for my application)<BR />And if yes what will do basically, in SPI mode.</P><P>- Is the default word format is 8N1. The datasheet indicates that "no parity" is "default normal condition". But it doesn't indicates the default condition for the stop bit (Is it 1 or 2?).<BR />It would be 0-1 if LCR[2] default is 0. (how could it be without stop bit ???)<BR />And it doesn't indicate the default value for the word length. Here, if the value in LCR[1] and [0] the word length would 5, which is very strange.<BR />So, what are the default values for LCR[2],[1] and [0]?</P><P>- In SPI mode, as FIFO is left disabled by default, is it necessary to send a read request ("10000000" followed by the response) or would data flow automatically from RX to SO?<BR />And vice versa: Would it be necessary to send a write request instead of just feeding the data through the circuit?</P></BODY></HTML> Tue, 22 Jan 2019 19:14:38 GMT https://community.nxp.com/t5/Digital-Signal-Controllers/SC16IS741A-Default-behavior/m-p/853195#M1445 projects1 2019-01-22T19:14:38Z