D-91

v-1.0
---
1. interrupt => LED on

	==> done
D-91

v-1.0a
---
1. while RB0 == 1 => LED 1 --> on

	==> done
D-91

v-1.0b
---
1. while RB0 == 1 => LED 1 --> on
2. if RB1 == 1 => LED 2 --> on

	==> N/W
D-91

v-2.0
---
1. interrupt を使わずに、PORTB の入力に従って、PORTA の出力を出す

	==> W
D-91

v-2.0b
---
1. if (PORTB_0_H)

	==> W
D-91

v-2.0c
---
1. if (PORTB & 0x01 == 0x01)

	==> W
D-91

v-2.0d
---
1. if (PORTB & 0x02 == 0x02)

	==> N/W
D-91

v-1.1
---
1. 改めて、interrupt で、LED を１つ ---> on

	==> N/W
W
D-91

v-1.1
---
1. use => RB0~2

    	==> W
D-91

v-1.2
---
1. LED on => 1 LED at a time

    	==> W
D-91

v-1.2a
---
1. LEDs on => all cases

    	==> W
D-91

v-3.0
---
1. RB1 --> on => send one pattern of signal
	    ==> reader pattern

    	==> W
D-91

v-3.0a
---
1. RB1 --> on => send one pattern of signal
	    ==> data

    	==> N/W
D-91

v-3.0b
---
1. RB1 --> on => send one pattern of signal
	    ==> data

    	==> N/C
D-91

v-3.0c
---
1. RB1 --> on => send one pattern of signal
	    ==> data

    	==> W
D-91

v-3.1
---
1. use => "_custom_lower_num"

    	==> W
D-91

v-3.1a
---
1. send => 3 different signals

    	==> W