8-bit Microcontrollersのトピックp89lpc92 kbi https://community.nxp.com/t5/8-bit-Microcontrollers/p89lpc92-kbi/m-p/891771#M22833 <HTML><HEAD></HEAD><BODY><P>The KBI does not function in a P89LPC921F but it functions in the P89LPC925F.</P><P>In the 921 the KBPATN always has a value of "0FFH" and the KBMASK always has a value of "00".&nbsp; If I write the registers and read back the value, it is unchanged.&nbsp; I assume that since the KBMASK is "00", that is why an interrupt never occurs.&nbsp; Is anyone else aware of this problem.</P></BODY></HTML> Thu, 11 Apr 2019 01:36:33 GMT rotsig 2019-04-11T01:36:33Z p89lpc92 kbi https://community.nxp.com/t5/8-bit-Microcontrollers/p89lpc92-kbi/m-p/891771#M22833 <HTML><HEAD></HEAD><BODY><P>The KBI does not function in a P89LPC921F but it functions in the P89LPC925F.</P><P>In the 921 the KBPATN always has a value of "0FFH" and the KBMASK always has a value of "00".&nbsp; If I write the registers and read back the value, it is unchanged.&nbsp; I assume that since the KBMASK is "00", that is why an interrupt never occurs.&nbsp; Is anyone else aware of this problem.</P></BODY></HTML> Thu, 11 Apr 2019 01:36:33 GMT https://community.nxp.com/t5/8-bit-Microcontrollers/p89lpc92-kbi/m-p/891771#M22833 rotsig 2019-04-11T01:36:33Z