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AT89C5122D-RDRUM 数据表(PDF) 161 Page - ATMEL Corporation |
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AT89C5122D-RDRUM 数据表(HTML) 161 Page - ATMEL Corporation |
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161 / 208 page ![]() 161 AT83R5122, AT8xC5122/23 4202F–SCR–07/2008 Reset Value = X0XX 00X0b (Bit addressable) Table 99. Interrupt Enable Register 1 - IEN1 (B1h) for AT8xC5122 7654 3210 - EUSB - - ESCI ESPI - EKB Bit Number Bit Mnemonic Description 7- Reserved The value read from this bit is indeterminate. Do not change this bit. 6EUSB USB Interrupt Enable bit Cleared to disable USB interrupt . Set to enable USB interrupt. 5 - 4 - Reserved The value read from this bit is indeterminate. Do not change these bits. 3ESCI SCI interrupt Enable bit Cleared to disable SCIinterrupt . Set to enable SCI interrupt. 2 ESPI SPI interrupt Enable bit Cleared to disable SPI interrupt . Set to enable SPI interrupt. 1- Reserved The value read from this bit is indeterminate. Do not change this bit. 0EKB Keyboard interrupt Enable bit Cleared to disable keyboard interrupt . Set to enable keyboard interrupt. |
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