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???
02/25/00 08:38
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#1593 - 8515 I/O Registers, programing via BASIC
Will the IN instruction read directly from the port B pins that are sticking out of the package? Or is PINB at $36 an internal register with no direct conection externally? Will in rdd,$3E put the SPH into rdd?
Can a progam writen in basic be used to program the Flash through a printing port of a computer? What would be the voltages for highs and lows given out by a computer at the port?
I forgot the command for outputing data via the parrellel printer port. What is it? PRINT A,1?
Are the varous types Of ESPM operations, enabled by a ldl operation?
I suspect so, since there is only one op code for ESPM. Does the ESPM funcion erase and write pages in the flash, without reading pages from an external memory? What is the purpose for having external in ESPM?

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