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W9816G6CB-7 Datasheet(PDF) 9 Page - Winbond |
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W9816G6CB-7 Datasheet(HTML) 9 Page - Winbond |
9 / 42 page W9816G6CB Command is defined by having RAS and CAS high with CS and WE low at the rising edge of the clock. The data DQs go to a high impedance state after a delay, which is equal to the CAS Latency in a burst read cycle, interrupted by Burst Stop. If a Burst Stop Command is issued during a full page burst write operation, then any residual data from the burst write cycle will be ignored. 7.12 Addressing Sequence of Sequential Mode A column access is performed by increasing the address from the column address, which is input to the device. The disturb address is varied by the Burst Length as shown in Table 2. Table 2 Address Sequence of Sequential Mode DATA ACCESS ADDRESS BURST LENGTH Data 0 n BL = 2 (disturb address is A0) Data 1 n + 1 No address carry from A0 to A1 Data 2 n + 2 BL = 4 (disturb addresses are A0 and A1) Data 3 n + 3 No address carry from A1 to A2 Data 4 n + 4 Data 5 n + 5 BL = 8 (disturb addresses are A0, A1 and A2) Data 6 n + 6 No address carry from A2 to A3 Data 7 n + 7 7.13 Addressing Sequence of Interleave Mode A column access is started in the input column address and is performed by inverting the address bit in the sequence shown in Table 3. Table 3 Address Sequence of Interleave Mode DATA ACCESS ADDRESS BURST LENGTH Data 0 A8 A7 A6 A5 A4 A3 A2 A1 A0 BL = 2 Data 1 A8 A7 A6 A5 A4 A3 A2 A1 A0 Data 2 A8 A7 A6 A5 A4 A3 A2 A1 A0 BL = 4 Data 3 A8 A7 A6 A5 A4 A3 A2 A1 A0 Data 4 A8 A7 A6 A5 A4 A3 A2 A1 A0 BL = 8 Data 5 A8 A7 A6 A5 A4 A3 A2 A1 A0 Data 6 A8 A7 A6 A5 A4 A3 A2 A1 A0 Data 7 A8 A7 A6 A5 A4 A3 A2 A1 A0 Publication Release Date: Aug. 23, 2007 - 9 - Revision A3 |
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