Intel PXA250 and PXA210 Sdram Support, Sdram Memory Types Supported by the Applications Processor

System Memory Interface

2.4SDRAM Support

Table 2-2shows the SDRAM memory types and densities that are supported by the applications processor.

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Table 2-2. SDRAM Memory Types Supported by the Applications Processor

Partition Size		SDRAM		Number Chips/			Maximum		Total Number
						Bank Bits x	Memory
(Mbyte/Partition)		Configu-		Partition					of Chips
			Chip			Row bits x	(4 Partitions)
		ration
			Size			Column
		(Words x
16-bit	32-bit			16-bit	32-bit	Bits	16-bit	32-bit	16-bit	32-bit
		Bits)
Bus	Bus			Bus	bus		Bus	Bus	Bus	Bus
2 Mbyte	4 Mbyte	1M x 16	16 Mbit	1	2	1 x 11 x 8	8 Mbyte	16 Mbyte	4	8
4 Mbyte	8 Mbyte	2 M x 8	16 Mbit	2	4	1 x 11 x 9	16 Mbyte	32 Mbyte	8	16
8 Mbyte	16 Mbyte	4 M x 4	16 Mbit	4	8	1 x 11 x 10	32 Mbyte	64 Mbyte	16	32
N/A	8 Mbyte	2 M x 32	64 Mbit	N/A	1	2 x 11 x 8	N/A	32 Mbyte	N/A	4
8 Mbyte	16 Mbyte	4 M x 16	64 Mbit	1	2	1 x 13 x 8	32 Mbyte	64 Mbyte	4	8
						2 x 12 x 8
16 Mbyte	32 Mbyte	8 M x 8	64 Mbit	2	4	1 x 13 x 9	64 Mbyte	128	8	16
						2 x 12 x 9		Mbyte
32 Mbyte	64 Mbyte	16 M x 4	64 Mbit	4	8	1 x 13 x 10	128	256	16	32
						2 x 12 x 10	Mbyte	Mbyte
16 Mbyte	32 Mbyte	8 M x 16	128 Mbit	1	2	2 x 12 x 9	64 Mbyte	128	4	8
								Mbyte
32 Mbyte	64 Mbyte	16 M x 8	128 Mbit	2	4	2 x 12 x 10	128	256	8	16
							Mbyte	Mbyte
64 Mbyte	N/A	32 M x 4	128 Mbit	4	8	2 x 12 x 11	256	N/A	16	32
							Mbyte
32 Mbyte	64 Mbyte	16 M x	256 Mbit	1	2	2 x 13 x 9	128	256	4	8
		16					Mbyte	Mbyte
64 Mbyte	N/A	32 M x 8	256 Mbit	2	4	2 x 13 x 10	256	N/A	8	16
							Mbyte

PXA250 and PXA210 Applications Processors Design Guide 2-5