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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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SH7263 датащи(PDF) 49 Page - Renesas Technology Corp |
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SH7263 датащи(HTML) 49 Page - Renesas Technology Corp |
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49 / 1862 page  Section 1 Overview Rev. 2.00 Mar. 14, 2008 Page 15 of 1824 REJ09B0290-0200 Classification Symbol I/O Name Function NMI I Non-maskable interrupt Non-maskable interrupt request pin. Fix it high when not in use. IRQ7 to IRQ0 I Interrupt requests 7 to 0 Maskable interrupt request pins. Level-input or edge-input detection can be selected. When the edge- input detection is selected, the rising edge, falling edge, or both edges can also be selected. PINT7 to PINT0 I Interrupt requests 7 to 0 Maskable interrupt request pins. Only level-input detection can be selected. Interrupts IRQOUT O Interrupt request output Indicates that an interrupt has occurred, enabling external devices to be informed of an interrupt occurrence even while the bus mastership is released. Address bus A25 to A0 O Address bus Outputs addresses. Data bus D31 to D0 I/O Data bus Bidirectional data bus. Bus control CS7 to CS0 O Chip select 7 to 0 Chip-select signals for external memory or devices. RD O Read Indicates that data is read from an external device. RD/ WR O Read/write Read/write signal. BS O Bus start Bus-cycle start signal. AH O Address hold Address hold timing signal for the device that uses the address/data- multiplexed bus. FRAME O FRAME signal Connected to the FRAME signal in the burst MPX-I/O interface. WAIT I Wait Inserts a wait cycle into the bus cycles during access to the external space. WE0 O Byte select Indicates a write access to bits 7 to 0 of data of external memory or device. |
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