the new mc302x:
　　new improved pcb layout:
　　single board controller.

　　new improved power supply:
　　no electrolytic caps.

　　new fpga:
　　smaller.

　　new improved application memory 4mbit (apps ram).

　　new memory arrangement, arm7 based processor with internal flash memory of 16 mbit

　　new improved encoder/stepper transceiver with new esd protection devices allowing a better esd protection.

　　connection to encoder and/or stepper axis via 2 d-type connector like on the mc206x.

　　possibility to use axis0 as stepper encoder and axis1 as stepper only or axis1 as stepper encoder and axis0 as servo/encoder. (see d-type pin desc-ription).

　　new can controller, 3.3v oki can controller ml9620.

　　new dac isolation using icoupler technology.

　　new improved rs485 transceiver, better esd protection and voltage threshold.

　　two serial connector, one minidin connector for rs232 port#0, on other one for port#1 rs232 or rs485. (see serial connectors pin connection)

　　new wdog circuitry using a single solid state relay.

　　new improved clock generator circuitry, smaller surface mount xtal and better spread spectrum device.

　　new output drivers, quad channel high side driver.

　　new atype 46 to use as a stepper encoder with external encoder input.

　　atype 4 use as a stepper encoder with internal encoder loop back as for mc206.

　　axis pin desc-ription:
　　standard atype:

atype axis(0)=46 (stepper encoder type with external encoder input )

atype axis(1)=46 (stepper encoder type with external encoder input )