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PXA3xx Boot ROM Reference Manual - Marvell

PXA3xx Boot ROM Reference Manual - Marvell

PXA3xx Boot ROM Reference Manual - Marvell

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Figure 8:Electronic Signature RequirementsElectronic Signature RequirementsBlock SizeBlock SizeDecodedPage SizePage SizeDecoderIO7 IO6 IO5 IO4 IO3 IO2 IO1 IO00 0 64K 0 0 Not Supported0 1 128K 0 1 2K1 0 Not Supported 1 0 Not Supported1 1 Not Supported 1 1 Not SupportedThe NAND Flash Controller (NFC) is set up for the appropriate NAND configuration as noted inTable 12, “NAND Flash Controller Initial Register Settings". NDCR[DWIDTH_C] andNDCR[DWIDTH_M] are configured by the <strong>Boot</strong> <strong>ROM</strong> depending on the boot configuration SKU ofthe processor.Table 12: NAND Flash Controller Initial Register SettingsRegisterValue for Small BlockOperationNoteNDCR[DWIDTH_C] andNDCR[DWIDTH_M] (bits27:26) initialsettings are determined by the bootstate fusesNote5.3 XIP Flash Support0xCC02_1FFFValue for Large BlockOperation0xCD04_1FFFTiming register 0 0x003F_3F3F 0x003F_3F3FTiming register 1 0x1FF0_C0FF 0x1FF0_C0FFTable 13:NAND Command SetCommand Small Block Command Code Large Block Command CodeRead 0x0000_ 0x3000Read Status 0x0070 0x0070Read ID 0x0090 0x0090Some NAND devices power up with the blocks in a locked state. To ensure the blockscan be unlocked with software, refer to the NFC chapter of the <strong>PXA3xx</strong> ProcessorFamily Vol. II: Memory Controller Configuration Developers <strong>Manual</strong>.The processor <strong>Boot</strong> <strong>ROM</strong> supports NOR Flash memory on the data flash interface (DFI) bus. Flashis supported via a command set, not through a particular JEDEC ID. See Table 14 for supportedcommands.12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758Copyright © 2010 <strong>Marvell</strong> PUBLIC RELEASE Doc. No. MV-S301208-00 Rev. -Page 41

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