AMC 68VZ328 software manual Sdram

to its working position in the memory map and to initialize SDRAM to address 0x00000000.

SDRAM

The SDRAM used on the dimmPCITM is the MT48LC4M16A2 or compatible 3.0V SDRAM. The exact SDRAM part or size is dependant on the current SDRAM in stock or available on the market. The SDRAM is located at 0x00000000 in memory so that the interrupt vector table will be located in SDRAM.

*NOTE * Setting the registers to recognize different SDRAM sizes doesn’t work as explained in the Motorola Application Note AN2148-D rev 5.0. Instead a few jumper resistors select the SDRAM size.

Figure 5. SDRAM Schematic

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