Please Explain

1)
NOTE: The MCU must be running the BOOT ROM
program for WINISP or FlashMagic to be able to
communicate with the microcontroller.

2)
EA/Vpp--- ? what to apply in case of 89C66x
PSEN --- ? what to apply in case of 89C66x
TX --MAX-- to PC
RX --MAX-- to PC


3) Can 89C668 be programmed as a stand alone I2C slave ? if yes any
link or application note please .


TIA
J.J