Panasonic MN101C77C, F77G user manual Block Diagram P72

Chapter 4 I/O Ports

			Reset
Nch open-drain control			R	SC0ODC3
			D Q
		Write	L		Read
			Reset
			R	P7PLUD2
Pull-up/down resistor control			D Q
		Write	L		Read
			Reset
			R	FLOAT(bp4)
Pull-up/down resistor selection			D Q
		Write	L		Read
			Reset
	Data		R	P7DIR2
I/O direction control			D Q
	bus	Write	L		Read			P72
			Reset
Port output data			R	P7OUT2		0	M
			D Q				U
		Write	L		Read	1
							X
Port input data				P7IN0
			Read
Serial interface 0 clock input
Serial interface 0 clock output
SC0MD1 register
SC0SBOS flag
			Figure 4-7-5 Block Diagram (P72 )
				Reset
				R	P7PLUD3
Pull-up/down resistor control				D Q
			Write	L	Read
				Reset
				R	FLOAT(bp4)
Pull-up/down resistor selection				D Q
			Write	L	Read
				Reset
		Data		R	P7DIR3
I/O direction control				D Q
		bus	Write	L	Read			P73
				Reset
Port output data				R	P7OUT3		0	M
				D Q				U
			Write	L	Read		1
								X
Port input data					P7IN3
				Read
Serial interface 1 transmission data output
UART transmission data output
SC1MD1 register
SC1SBOS flag
			Figure 4-7-6 Block Diagram (P72 )

IV - 34 Port 7