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What I am trying to do is write specific hex values to ROM through my assembly code. The lookup table will be used to reference a specific key press to 4 bytes of data (32 bits), which is output to a serial LCD driver.
These 32 bits are then output serially (using 8051 serial port) to enable the required lcd's.

Can the serial port output the required information? Is there a serial mode that uses either Tx.d or Rx.d as a clock signal? If so which pin? Any help would be appreciated