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IDT7005S Datasheet(PDF) 15 Page - Integrated Device Technology |
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IDT7005S Datasheet(HTML) 15 Page - Integrated Device Technology |
15 / 20 page IDT7005S/L HIGH-SPEED 8K x 8 DUAL-PORT STATIC RAM MILITARY AND COMMERCIAL TEMPERATURE RANGES 6.06 15 WAVEFORM OF INTERRUPT TIMING(1) TRUTH TABLES TRUTH TABLE I — INTERRUPT FLAG(1,4) Left Port Right Port R/ W W W W WL CE CE CE CE CEL OE OE OE OE OEL A12L-A0L INT INT INT INT INTL R/ W W W W WR CE CE CE CE CER OE OE OE OE OER A12R-A0R INT INT INT INT INTR Function L L X 1FFF XXXXX L (2) Set Right INTR Flag X X X X X X L L 1FFF H (3) Reset Right INTR Flag XX X X L (3) L L X 1FFE X Set Left INTL Flag X L L 1FFE H (2) XXXXX Reset Left INTL Flag NOTES: 2738 tbl 17 1. Assumes BUSYL = BUSYR = VIH. 2. If BUSYL = VIL, then no change. 3. If BUSYR = VIL, then no change. 4. INTR and INTL must be initialized at power-up. NOTES: 1. All timing is the same for left and right ports. Port “A” may be either the left or right port. Port “B” is the port opposite from port “A”. 2. See Interrupt truth table. 3. Timing depends on which enable signal ( CE or R/W) asserted last. 4. Timing depends on which enable signal ( CE or R/W) is de-asserted first. 2738 drw 18 ADDR"B" INTERRUPT CLEAR ADDRESS CE"B" OE"B" tAS tRC (3) tINR(3) INT"B" (2) 2738 drw 17 ADDR"A" INTERRUPT SET ADDRESS CE"A" R/ W"A" tAS tWC tWR (3) (4) tINS (3) INT"B" (2) |
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