Ask a arm problem, s3c2440 chip that nand flash on the controller in that there is a place to don't understand

Ask a arm problem, s3c2440 chip that nand flash on the controller in that there is a place to don't understand
http://www.siliconray.com/
Here the word access. Half word access and byte access is how certain, software configuration or chip fixed, thank you, because flash literacy has been make uncertain, hundreds of dollars to buy board put for a long time, no one understand around,
By software to set the access method. This way you choose depends on the FLASH visit structure, and if your FLASH support 32 bit visit, it is 3 kinds of methods, if your FLASH is 16, then after only two, if your FLASH is eight, it can only visit BYTE. Generally speaking, if FLASH is not very big, with BYTE ACCESS. Come from: turn the answer