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M38B53M4-059FP Datasheet(PDF) 94 Page - Mitsubishi Electric Semiconductor |
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M38B53M4-059FP Datasheet(HTML) 94 Page - Mitsubishi Electric Semiconductor |
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94 / 355 page  2-6 38B5 Group User’s Manual APPLICATION 2.1 I/O port Fig. 2.1.9 Structure of pull-up control register 2 2.1.3 Terminate unused pins Table 2.1.1 Termination of unused pins Pull-up control register 2 b7 b6 b5 b4 b3 b2 b1 b0 Pull-up control register 2 (PULL2: address 0EF116) b 0 1 2 3 4 5 7 Name 0 Functions At reset R W 0 0 0 0 0 0 Ports P70, P71 pull- up control Ports P72, P73 pull- up control Ports P76, P77 pull- up control Ports P84, P85 pull- up control Ports P86, P87 pull- up control Nothing is arranged for this bit. This is a write disabled bit. When this bit is read out, the contents are “0”. Ports P74, P75 pull- up control 0: No pull-up 1: Pull-up 0: No pull-up 1: Pull-up 0: No pull-up 1: Pull-up 0: No pull-up 1: Pull-up 0: No pull-up 1: Pull-up 0: No pull-up 1: Pull-up 6 0 Ports P90, P91 pull- up control 0: No pull-up 1: Pull-up Note: The pin set to output port is cut off from pull-up control. Pins P1, P3 P5, P61–P65, P7, P84–P87, P9 P40–P46, P60 P0, P2, P80–P83 P47 VREF XOUT AVSS, VEE Termination Open at “H” output state. • Set to the input mode and connect each to VCC or VSS through a resistor of 1 k Ω to 10 k Ω. • Set to the output mode and open at “L” or “H” output state. • Set to the input mode and connect each to VCC or VSS through a resistor of 1 k Ω to 10 k Ω. • Set to the output mode and open at “L” output state. • Set to the input mode and connect each to VCC or VSS through a resistor of 1 k Ω to 10 k Ω. • Set to the output mode and open at “H” output state. Disable INT2 interrupt and connect to VCC or VSS through a resistor of 1 K Ω to 10 kΩ. Open Open (only when using external clock) Connect to VSS (GND). |
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