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MB90483CPMC Datasheet(PDF) 35 Page - Fujitsu Component Limited. |
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MB90483CPMC Datasheet(HTML) 35 Page - Fujitsu Component Limited. |
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35 / 124 page  MB90480B/485B Series DS07-13722-11E 35 (3) Port Input Resistance Registers These registers control the use of pull-up resistance in input mode. 0 : No pull-up resistance in input mode. 1 : With pull-up resistance in input mode. In output mode, these registers have no function (no pull-up resistance) . Input/output mode settings are controlled by the setting of port direction (DDR) registers. In case of a stop (SPL = 1) , no pull-up resistance is applied (high impedance) . Using of this function is prohibited when an external bus is used. Do not write to these registers. (4) Port Output Pin Registers *1 : The value is set to “ ⎯” on MB90485B series only. *2 : The initial value of this bit is “XX000000B” on MB90485B series only. These registers control open drain settings in output mode. 0 : Standard output port functions in output mode. 1 : Open drain output port in output mode. In input mode, these registers have no function (Hi-Z output) . Input/output mode settings are controlled by the setting of port direction (DDR) registers. Using of this function is prohibited when an external bus is used. Do not write to these registers. (5) Analog Input Enable Register This register controls the port 6 pins as follows. 0 : Port input/output mode. 1 : Analog input mode. The default value at reset is all “1”. (6) Up/down Timer Input Enable Register This register controls the port 3 pins as follows. 0 : Port input mode. 1 : Up/down timer input mode.The default value at reset is “0”. RDR0 Initial value Access Address : 00001CH 00000000B R/W RDR1 Address : 00001DH 00000000B R/W 76 5 4 3 2 1 0 RD06 RD07 RD05 RD04 RD03 RD02 RD01 RD00 76 5 4 3 2 1 0 RD16 RD17 RD15 RD14 RD13 RD12 RD11 RD10 ODR7 Initial value Access Address : 00001EH 00000000B*2 R/W ODR4 Address : 00001BH 00000000B R/W 76 5 4 3 2 1 0 OD75 OD74 OD73 OD72 OD71 OD70 OD76*1 OD77*1 76 5 4 3 2 1 0 OD46 OD47 OD45 OD44 OD43 OD42 OD41 OD40 ADER Initial value Access Address : 00001FH 11111111B R/W 76 5 4 3 2 1 0 ADE6 ADE7 ADE5 ADE4 ADE3 ADE2 ADE1 ADE0 UDER Initial value Access Address : 00000BH XX000000B R/W 76 5 4 3 2 1 0 ⎯ ⎯ UDE5 UDE4 UDE3 UDE2 UDE1 UDE0 |
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