Dear All, I want to add a external Uart(PC16550) to my Evaluation Boards. This board is use the winbond W8c438c with 32kb eprom and 32kb sram,but i have some problem in this design. 1.how to design and Implementation the hardware between three chips?. 2.before the mon51 setting is (install 8 FF 0),what is the setting if I use the Uart? Thank You
Take a look to the MCBx51 schematics. These can be found in the User's Guide under: http://www.keil.com/MCBx51 This board is also using an external UART.