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Hi,
I want to confirm about CY7C68320C-100AXC.
(Background)
Customers use the CY7C68300C as a controller for CF (CompactFlash).
There is no problem accessing the CF.
However, if you insert or remove a CF card, it will occasionally not be recognized.
Q.
Would you tell me the steps needed to recognize CF?
*
The following is the content that we believe is necessary for CF recognition.
1)DRVPWRVLD pin status.
2)ARESET# pin status. (To confirm if it is asserted for CF reset)
3)INTRQ# pin status.
4)Is CF power ON / OFF control necessary for CF reset?
----------------------------
【質問事項】
現状、CFのコントローラとしてCY7C68300Cを使用しています。
CFへのアクセスはできるのですが、CFカードの抜き差しを行うと
たまに認識しなくなることがあります。
CFを認識するにあったって、何かエラーが発生していると
思われますが、CFの認識に必要な手順をご教示ください。
以下、CF認識のために必要ではないかと考えている内容です。
① DRVPWRVLDピンの状態でCFの有無を確認しているでしょうか?
② CFリセットのためにARESEST#は発行されているでしょうか?
③ CFの状態確認のため、INTRQの状態確認はされているでしょうか?
④ CFリセットのためにCFの電源ON/OFF制御等は必要でしょうか?
----------------------------
Best Regards,
Solved! Go to Solution.
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Hello,
We are taking a time to find out answer for your queries.
Could you let me know some information as follows?
1. Can the customer get USB trace for during CF plug/unplug? We would like to confirm whether "Test Unit Ready" is successful.
2. What is the configuration bits status on:
a. DRIVE POWER VALID ENABLE : (Bit 0 at Address 0x08)
b. SEARCH_ATA_BUS (Bit 6 at Address 0x08)
c. SEARCH ATA ON VBUS (Bit 0 at Address 0x0E)
Best regards,
Hirotaka Takayama
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Hello,
We are taking a time to find out answer for your queries.
Could you let me know some information as follows?
1. Can the customer get USB trace for during CF plug/unplug? We would like to confirm whether "Test Unit Ready" is successful.
2. What is the configuration bits status on:
a. DRIVE POWER VALID ENABLE : (Bit 0 at Address 0x08)
b. SEARCH_ATA_BUS (Bit 6 at Address 0x08)
c. SEARCH ATA ON VBUS (Bit 0 at Address 0x0E)
Best regards,
Hirotaka Takayama
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Hi Takayama-san,
Thank you for your reply.
We are currently confirming that.
I will add it as soon as I can confirm.
Best Regards,