W90210F Datasheet, PDF(29/67 Page) Winbond – PA-RISC EMBEDDED CONTROLLER

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W90210F Datasheet, PDF (29/67 Pages) Winbond – PA-RISC EMBEDDED CONTROLLER

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W90210F

2ah

[0:7]

[0:1] RAS# precharge time.(default 0)

[2] CAS# precharge time.(default 0)

[3] Write cycle CAS# pulse width.(default 1)

[4:5] Read cycle RAS# to CAS# delay.(default 'b01)

[6:7] Write cycle RAS# to CAS# delay.(default 'b01)

2bh

[0:7]

[0:1] Refresh period.

00 : â 15us. (default).

01 : â 30us.

10 : â 60us.

11 : â disable refresh (for test only).

[2] Refresh cycle. RAS# active pulse width after CAS# disactive.

[3:4] Refresh cycle. RAS# active to CAS# inactive delay.(default 'b01)

[5] Refresh cycle. CAS# active to RAS# active delay.(default 0)

[6:7] Read cycle CAS# pulse width.(default 'b01)

The above information is the exclusive intellectual property of Winbond Electronics Corp. and shall not be disclosed, distributed or reproduced without permission from Winbond.

Version 1.4, 10/8/97

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