NAND Flash Actual size - SAM4S xplained pro

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According the SAM4S xplained pro user guide, the board has a 2gb NAND Flash:

 

 

The Chip is a Micron 29F2G08ABAEA (2Gb, x 8 NAND flash, 3.3V 48-TSOP1). In the micron datasheet it describes how the memory is laid out and how the total memory is calculated:

 

 

They calculate the memory as follows:

 

(2k + 64) * 64 * 2048 = 2112 mb

 

By I get the following:

 

2k = 2048

(2048+64) * 64 * 2048 = 276824064 bytes = 270336 kb = ~270.336mb

 

How do they get 2112 mb from (2k + 64) * 64 * 2048 ???

 

Also, printed on the xplained pro, it says the NAND has 256mb not 2gb:

 

 

The number sdont add up. Is is 256mb or 2gb flash ?

 

This topic has a solution.

"When all else fails, read the directions"

Last Edited: Sat. Jun 24, 2017 - 11:29 PM
This reply has been marked as the solution. 
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b is bit, B is byte. Sounds like it is a 256MB chip.

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Kartman wrote:
b is bit, B is byte. Sounds like it is a 256MB chip.

I should know this! blush. Much thx

 

"When all else fails, read the directions"