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SD6830 Datasheet(PDF) 10 Page - AUK corp |
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SD6830 Datasheet(HTML) 10 Page - AUK corp |
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10 / 34 page  KSI-W002-000 10 6.9 I /O Ports Port C/REM Port C/REM is a 1-bit output port, which is related with the bit 3 of accumulator, with CMOS N-channel open drain, which have large current sink capability, for I.R.LED drive. This output can be configured as carrier frequency by programming the register Z and port C data. This pin is put into the high-impedance state in stop mode. Port D Port D is a 4-bit input port with pull-up resistor. Forcing any input pins to “L” state, system reset occurs and it starts to operate from the reset address. Port E Port E is a 4-bit input port with pull-up resistor. Forcing any input pins to reset occurs and it starts to operate from the reset address. Port F Port F is an 8-bit output port with N-channel open drain. Each output which specified by the lower 3-bit of register L can be set and reset individually. All F pins are put into the low state in stop mode. Port G Port G is a 1-bit output port with N-channel open drain. When stop mode is specified, this pin still remains in the previous state. Set this pin to appropriate state before entering stop mode for visible LED or key scan application. Port K Port K is a 1-bit output port with N-channel open drain. When stop mode is specified, this pin still remains in the previous state. Set this pin to appropriate state before entering stop mode for visible LED or key scan application. SD6830 |
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Similar Description - SD6830 |
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