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AT89C5122D-RDRUM 数据表(PDF) 60 Page - ATMEL Corporation |
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AT89C5122D-RDRUM 数据表(HTML) 60 Page - ATMEL Corporation |
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60 / 208 page  60 AT83R5122, AT8xC5122/23 4202F–SCR–07/2008 Reset Value = 0000 0000b Reset Value = xxxx 00xxb Table 38. Port Mode Register 1 - PMOD1 (84h) for AT8xC5122 7654 3210 P5HC1 P5HC0 P5MC1 P5MC0 P5LC1 P5LC0 P4C1 P4C0 Bit Number Bit Mnemonic Description 7 - 6 P5HC1-P5HC0 Port 5 High Configuration bits (Applicable from P5.6 to P5.7 only) 00 Quasi bi-directional 01 Push-pull 10 Input with weak pull-down 11 Input with weak pull-up 5 - 4 P5MC1-P5MC0 Port 5 Medium Configuration bits (Applicable from P5.3 to P5.5 only) 00 Quasi bi-directional 01 Push-pull 10 Input with weak pull-down 11 Input with weak pull-up 3 - 2 P5LC1-P5LC0 Port 5 Low Configuration bits (Applicable from P5.0 to P5.2 only) 00 Quasi bi-directional 01 Push-pull 10 Input with medium pull-up 11 Input with weak pull-up 1 - 0 P4C1-P4C0 Port 4 Configuration bits (Applicable from P4.3 to P4.5 only) 00 Quasi bi-directional 01 Push-pull 10 Output Low Speed 11 Input with medium pull-up Table 39. Port Mode Register 1 - PMOD1 (84h) for AT83C5123 7654 3210 - - - - P5LC1 P5LC0 - - Bit Number Bit Mnemonic Description 7 - 4 Reserved The value read from this bit is indeterminate. Do not set this bit. 3 - 2 P5LC1-P5LC0 Port 5 Low Configuration bits (Applicable from P5.0 to P5.2 only) 00 Quasi bi-directional 01 Push-pull 10 Input with medium pull-up 11 Input with weak pull-up 1 - 0 Reserved The value read from this bit is indeterminate. Do not set this bit. |
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