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AT89C5122DS-RDRUM 数据表(PDF) 166 Page - ATMEL Corporation |
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AT89C5122DS-RDRUM 数据表(HTML) 166 Page - ATMEL Corporation |
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166 / 208 page ![]() 166 AT83R5122, AT8xC5122/23 4202F–SCR–07/2008 Reset Value = XXXX X000b (Not bit addressable) Table 105. Interrupt Priority High Register 1 - IPH1 (B3h) for AT8xC5122 7654 3210 - PUSBH - - PSCIH - Bit Number Bit Mnemonic Description 7- Reserved The value read from this bit is indeterminate. Do not change this bit. 6PUSBH USB Interrupt Priotity High bit PUSBH PUSBL Priority Level 0 0 Lowest 01 10 1 1 Highest 5-4 - Reserved The value read from this bit is indeterminate. Do not change these bits. 3PSCIH SCI Interrupt Priority High bit PSCIH PSCIL Priority Level 0 0 Lowest 01 10 1 1 Highest 2PSPIH SPI Interrupt Priority High bit PSPIH PSPIL Priority Level 0 0 Lowest 01 10 1 1 Highest 1- Reserved The value read from this bit is indeterminate. Do not change this bit. 0PKBH Keyboard Interrupt Priority High bit PKBDH PKBDL Priority Level 0 0 Lowest 01 10 1 1 Highest |
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