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MB91F127 Datasheet(PDF) 8 Page - Fujitsu Component Limited. |
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MB91F127 Datasheet(HTML) 8 Page - Fujitsu Component Limited. |
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8 / 50 page  MB91F127/F128 8 (Continued) Note : Most of the above terminals multiplex inputs and outputs of I/O ports and resources, as indicated as “XXXX/ PXX”. If the outputs of ports and resources conflict with each other on the terminals, resources take prefer- ences. No. Pin name Input/output circuit type Description 79 PF0/TCI0 D [TCI0] External clock input of timer 0. [PF0] General input/output port 80 SI2/PF1 D [SI2] Data input of UART2.This function is active when data in- put of UART2 is allowed. [PF1] General input/output port 81 SO2/PF2 D [SO2] Data output of UART2.This function is active when data output of UART2 is allowed. [PF2] General input/output port. This function is active when data output of UART2 is disallowed. 82 SC2/PF3/ATG D [SC2] Clock input of UART2 [ATG]External trigger input of A/D converter The input is used whenever necessary if a function concerned is selected. Output of other functions must be suspended if not on purpose. [PF3] General input/output port 83 to 90 AN0/PJ0 AN1/PJ1 AN2/PJ2 AN3/PJ3 AN4/PJ4 AN5/PJ5 AN6/PJ6 AN7/PJ7 E [AN0 to AN7] Analog input of A/D converter. This function is active when analog input is specified in AIC reg- ister. [PJ0 through PJ7] General input/output ports 91 AVCC VCC power supply for A/D converter 92 AVRH Reference voltage of A/D converter (high potential side). Be sure to turn on or off this terminal with a potential higher than AVRH applied to VCC. 93 AVSS/AVRL A/D converter VSS power source and reference voltage (low po- tential side). 94 to 96 VCC Power sources of digital circuits. Be sure to connect power source to all terminals when the device is used. 97 to 100 VSS Ground level of digital circuits. |
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