Panasonic MN101C77C, F77G user manual Block Diagram P04

Chapter 4 I/O Ports

		Reset
Pull-up resistor control			R	P0PLU4
			D Q
	Write		L		Read
		Reset
I/O direction control			R	P0DIR4
			D Q
	Write		L		Read
	Data	Reset
	bus			P0OUT4		0	M
Port output data			R
			D Q				U
	Write		L		Read	1

X

P0IN4

Port input data

Read

Serial interface 0 reception data input

UART reception data input

Figure 4-2-6 Block Diagram (P04)

		Reset
				SC0ODC1
Nch open-drain control			R
	Write		D Q
			L		Read
		Reset
Pull-up resistor control			R	P0PLU5
			D Q
	Write		L		Read
		Reset
I/O direction control			R	P0DIR5
			D Q
	Write		L		Read
	Data	Reset
	bus			P0OUT5		0	M
Port output data			R
			D Q			1	U
	Write		L		Read

X

P0IN5

Port input data

Read

Serial interface 0 clock input

Serial interface 0 clock output

SC0MD1 register

SC0SBTS flag

Figure 4-2-7 Block Diagram (P05)

P04

P05

IV - 10 Port 0