Motorola MVME1X7P - Manual (Page 281)

Programming Model
http://www.motorola.com/computer/literature 4-33
4
SDRAM Configuration Register
SDCFG2-SDCFG0
Define the physical SDRAM memory population on the
printed circuit board:
ADR/SIZ 1st $FFF4307c/2nd $FFF4317c (8-bits)
BIT 31 30 29 28 27 26 25 24
NAME 0 0 0 0 0 SDCFG2 SDCFG1 SDCGF0
OPER R R R R R R R R
RESET 0 PLS 0 PLS 0 PLS V PLS V PLS V PLS V PLS V PLS
SDCFG2 SDCFG1 SDCFG0 DRAM Array Size
0 0 0 SDRAM device is 64MBit x 16 data with
one bank composed of 3 devices
0 0 1 SDRAM device is 64MBit x 8 data with
one bank composed of 5 devices
0 1 0 SDRAM device is 64MBit x 8 data with
two banks composed of 5 devices each
0 1 1 SDRAM device is 64MBit x 8 data with
four banks composed of 5 devices each
1 0 0 SDRAM device is 128MBit x 8 data with
one bank composed of 5 devices
1 0 1 SDRAM device is 128MBit x 8 data with
two banks composed of 5 devices each
1 1 0 reserved
1 1 1 reserved