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Bank Selection Bits in DDR3

Question asked by Qammar Abbas on Nov 7, 2017
Latest reply on Nov 8, 2017 by Qammar Abbas

T1042 Reference Manual Example

 

 

Hi,
The attached picture is taken from the reference manual of T1042. The query here is why there are only 2 sub-bank selection bits shown on each chip (indicated in red)? In this example all 8 sub banks are being used, and for that to happen we need 3 sub-bank selection bits (indicated in red in DDR controller). Please let me know where is the 3rd bit? Thank you!

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