Intel PXA250 and PXA210 Applications Processors
Intel PXA250 and PXA210 Applications Processors
Intel PXA250 and PXA210 Applications Processors
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System Memory Interface<br />
Figure 2-6. Alternate Bus Master Mode<br />
<strong>PXA250</strong><br />
EXTERNAL SYSTEM<br />
SDCKE<br />
<strong>PXA250</strong><br />
Memory<br />
Controller<br />
SDCLK<br />
nSDCS(0)<br />
nSDRAS<br />
nSDCAS<br />
nWE<br />
MA<br />
External<br />
SDRAM<br />
Bank 0<br />
DQM<br />
MD<br />
MBREQ<br />
MBGNT<br />
<strong>PXA250</strong><br />
GPIO<br />
Block<br />
GPIO (MBGNT)<br />
GPIO (MBREQ)<br />
Companion<br />
Chip<br />
<strong>PXA250</strong> <strong>and</strong> <strong>PXA210</strong> <strong>Applications</strong> <strong>Processors</strong> Design Guide 2-15