How to initialize the extended ROM/Flash interface of MPC8245?

chao yu chaoyu5201314 at
Wed Jan 19 16:57:02 EST 2005

      I have a CPLD connected to the RCS3 of MPC 8245 processor. 
      Does the initialization of MPC8245's extended rom interface follow the two steps below?
      1. Set the Bit 21 of MCCR registers with 1 to enable the extended rom/falsh interface?
      2. Set the ERCR2 register(0xD4) and ERCR4 register(0xDC).
Any extra steps must be go?  Thx.

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