Question about "Data# Polling Algorithm" flowchart in S29JL064H datasheet.

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yuxi_3250341
Level 3
Level 3
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Hi Cypress team,

In S29JL064H datasheet page 33, there's the "Data# Polling Algorithm" flow char, as shown below:

pastedImage_0.png

At “DQ5=1?", the "No" arrow leads to the beginning of "DQ7=Data?"

-- Is this accurate? I think here we should let it return to the previous read op, viz. it should lead to the "Read DQ7-DQ0 Addr = VA" square after "START".

My guess is confirmed in S29JL064J datasheet page 35 Figure 8, and S29GL01GT datasheet page 39 Figure 7, whose "Data# Polling Algorithm" are as follows:

pastedImage_2.png pastedImage_3.png

Can you confirm which flow chart is correct? The Figure 11.1 in S29JL064H datasheet seems inaccurate, can you confirm this?

Thank you & Best Regards~!

xieyl

March 1, 2020

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Apurva_S
Moderator
Moderator
Moderator
100 likes received 500 replies posted 250 solutions authored

Hi xieyl,

Thank you for contacting Cypress Semiconductor.

Yes, your understanding is correct. The correct operation flow should be to read DQ7 - DQ0 again after checking for DQ5 = 1? and then check for DQ7 = Data?

Best Regards,

Apurva

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Apurva_S
Moderator
Moderator
Moderator
100 likes received 500 replies posted 250 solutions authored

Hi xieyl,

Thank you for contacting Cypress Semiconductor.

Yes, your understanding is correct. The correct operation flow should be to read DQ7 - DQ0 again after checking for DQ5 = 1? and then check for DQ7 = Data?

Best Regards,

Apurva

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Hello Apurva, thanks for your help!

Best Regards

xieyl

March 02, 2020

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