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EZ80L92AZ020SC 数据表(PDF) 60 Page - Zilog, Inc. |
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EZ80L92AZ020SC 数据表(HTML) 60 Page - Zilog, Inc. |
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60 / 241 page  PS013012-1004 PRELIMINARY Interrupt Controller eZ80L92 MCU Product Specification 45 Interrupt Controller The interrupt controller on the eZ80L92 routes the interrupt request signals from the inter- nal peripherals and external devices (via the GPIO pins) to the eZ80® CPU. Maskable Interrupts On the eZ80L92, all maskable interrupts use the eZ80® CPU’s vectored interrupt function. Table 11 lists the low-byte vector for each of the maskable interrupt sources. The maskable interrupt sources are listed in order of their priority, with vector 00h being the highest-priority interrupt. The full 16-bit interrupt vector is located at starting address {I[7:0], IVECT[7:0]} where I[7:0] is the eZ80® CPU’s Interrupt Page Address Register. The user’s program should store the interrupt service routine starting address in the two- byte interrupt vector locations. For example, for ADL mode the two-byte address for the SPI interrupt service routine would be stored at {00h, I[7:0], 1Eh} and {00h, I[7:0], 1Fh}. In Z80 mode, the two-byte address for the SPI interrupt service routine would be stored at Table 11. Interrupt Vector Sources by Priority Vector Source Vector Source Vector Source Vector Source 00h Unused 1Ah UART 1 34h Port B 2 4Eh Port C 7 02h Unused 1Ch I2C 36h Port B 3 50h Port D 0 04h Unused 1Eh SPI 38h Port B 4 52h Port D 1 06h Unused 20h Unused 3Ah Port B 5 54h Port D 2 08h Unused 22h Unused 3Ch Port B 6 56h Port D 3 0Ah PRT 0 24h Unused 3Eh Port B 7 58h Port D 4 0Ch PRT 1 26h Unused 40h Port C 0 5Ah Port D 5 0Eh PRT 2 28h Unused 42h Port C 1 5Ch Port D 6 10h PRT 3 2Ah Unused 44h Port C 2 5Eh Port D 7 12h PRT 4 2Ch Unused 46h Port C 3 60h Unused 14h PRT 5 2Eh Unused 48h Port C 4 62h Unused 16h RTC 30h Port B 0 4Ah Port C 5 64h Unused 18h UART 0 32h Port B 1 4Ch Port C 6 66h Unused Note: Absolute locations 00h, 08h, 10h, 18h, 20h, 28h, 30h, 38h, and 66h are reserved for hardware reset, NMI, and the RST instruction. |
类似零件编号 - EZ80L92AZ020SC |
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类似说明 - EZ80L92AZ020SC |
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