fix tips resistor bit

docs/Instruction/tips/register_bit.md

@@ -6,32 +6,20 @@
 
 ## n-ary numbers
 
-- 1 byte = 8 bits = [7:0]
-- binary
-    - 2進数(0,1)
-    - 0b00001111
-    - B00001111
-- hexadecimal
-    - 16進数(0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F)
-    - 0xFF
-    - $FF
-- decimal
-    - 10進数(0,1,2,3,4,5,6,7,8,9)
-    - 0d255
-    - 255
-- ref. [2進数、8進数、10進数、16進数相互変換ツール](https://hogehoge.tk/tool/number.html)
+- 1 byte = 8 bits = 2^8 = 256 = [7:0]
+- 1 B = 8 b
 
 
-!!! Note
-    JP   | EN        |10       |255
-    --   |---        |--       |--
-    2進数 |Binary     |0b1010   |0b11111111  
-    10進数|Decimal    |0d10   |0d255
-    16進数|Hexadecimal|0xA      |0xff  
+    JP   | EN        | usable  |15       |255|255
+    --   |---        |-- |--       |-- |--
+    2進数 |Binary     |0,1|0b1111  |0b11111111|B11111111
+    10進数|Decimal    |0,1,2,3,4,5,6,7,8,9|0d15   |0d255|255
+    16進数|Hexadecimal|0,1,2,3,4,5,6,7,8,9,</br>A,B,C,D,E,F|0xf|0xff|$f
+
+- Ref. [2進数、8進数、10進数、16進数相互変換ツール](https://hogehoge.tk/tool/number.html)
 
-    1 byte = 8 bits = 2^8 = 256  
-    1B = 8b  
 
+!!! Note
     1**k**B = 1 [kilo] byte = 1000 B  
     1**K**B = 1 [ke̞ː] byte = 1024 B = 2^10 B = 1KiB = 1 [kibi] byte  
 
@@ -41,20 +29,69 @@
 ## pinout
 ![](../images/register/ATtiny_x14.gif)
 
-- Pin name
-    - 5.1 Multiplexed Signals(page18)
-        - Pin names are of type Pxn, with x being the PORT instance (A, B) and n the pin number. The notation for
-signals is PORTx_PINn. All pins can be used as event input.  
-    - PA0
-        - PORT A
-        - pin number 0
-
-- Data Direction Register
-    - 16.5.1 Data Direction
-        - DDRA
-            - PORT A
-            - 0: input
-            - 1: output
+## Datasheet
+
+[ATtiny1614](http://ww1.microchip.com/downloads/en/DeviceDoc/ATtiny1614-16-17-DataSheet-DS40002204A.pdf)
+
+
+5. I/O Multiplexing and Considerations  
+5.1 Multiplexed Signals  
+
+![](../images/register/PORT_Function _Multiplexing .png)
+
+> Pin names are of type Pxn, with x being the PORT instance (A, B) and n the pin number. T``
+
+
+16 .  PORT - I/O Pin Configuration  
+16.1 Features  
+ General Purpose Input and Output Pins with Individual Configuration:    
+ – Pull-up
+
+
+16.2 Overview
+
+> The I/O pins of the device are controlled by instances of the PORT peripheral registers. **Each PORT instance has up to eight I/O pins. The PORTs are named PORTA, PORTB, PORTC, etc.**
+>  
+> **Each PORT pin has a corresponding bit in the Data Direction (PORTx.DIR) and Data Output Value (PORTx.OUT)** registers to enable that pin as an output and to define the output state. For example, **pin PA3 is controlled by DIR[3]
+and OUT[3] of the PORTA instance.**
+
+
+
+16.4 Register Summary - PORTx
+![](../images/register/Register_Summary-PORTx.png)
+
+16.5.1 Data Direction
+
+> Name: DIR  
+> This bit field controls the output driver for each PORTx pin.
+
+Value |Description
+:--:|:--
+0 |Pxn is configured as an input-only pin, and the output driver is disabled
+1 |Pxn is configured as an output pin, and the output driver is enabled
+
+
+16.5.5 Output Value
+
+> Name: OUT  
+> This bit field controls the output driver level for each PORTx pin.
+
+Value |Description
+:--:|:--
+0 |The pin n (Pxn) output is driven low  
+1 |The Pxn output is driven high
+
+16.5.9 Input Value
+
+> Name: IN  
+> This bit field shows the state of the PORTx pins when the digital input buffer is enabled
+
+Value |Description
+:--:|:--
+0 |The voltage level on Pxn is low
+1 |The voltage level on Pxn is high
+
+
 
 ## Program
 
@@ -71,29 +108,28 @@ void loop() {
   delay(500);
 }
 ```
-
-AVR
+AVR 1-series
 ```
 void setup() {
-  DDRB |= 0b00000001;//ポートBの0番ピン(Arduinoの8番ピン)をOUTPUT
+  PORTB.DIR |= 0b00000001;//ポートBの0番ピン(Arduinoの8番ピン)をOUTPUT
 }
 void loop() {
-  PORTB |= 0b00000001;//ポートBの0番ピン(Arduinoの8番ピン)をHIGH
+  PORTB.OUT |= 0b00000001;//ポートBの0番ピン(Arduinoの8番ピン)をHIGH
   delay(500);
-  PORTB &= ~0b00000001;//ポートBの0番ピン(Arduinoの8番ピン)をLOW
+  PORTB.OUT &= ~0b00000001;//ポートBの0番ピン(Arduinoの8番ピン)をLOW
   delay(500);
 }
 ```
 
-AVR 1-series
+AVR
 ```
 void setup() {
-  PORTB.DIR |= 0b00000001;//ポートBの0番ピン(Arduinoの8番ピン)をOUTPUT
+  DDRB |= 0b00000001;//ポートBの0番ピン(Arduinoの8番ピン)をOUTPUT
 }
 void loop() {
-  PORTB.OUT |= 0b00000001;//ポートBの0番ピン(Arduinoの8番ピン)をHIGH
+  PORTB |= 0b00000001;//ポートBの0番ピン(Arduinoの8番ピン)をHIGH
   delay(500);
-  PORTB.OUT &= ~0b00000001;//ポートBの0番ピン(Arduinoの8番ピン)をLOW
+  PORTB &= ~0b00000001;//ポートBの0番ピン(Arduinoの8番ピン)をLOW
   delay(500);
 }
 ```
@@ -101,18 +137,40 @@ void loop() {
 Ref. [Arduinoで入出力を高速化する方法](https://haizairenmei.com/2019/11/29/avr/)
 
 !!! HINT
-    // コメント  
 
+    **代入**  
     a = 0; //初期値 代入    
     b = a + 1; //代入   
     a = a + 1; //加算代入  
     a += a; //加算代入
 
+
+    PORTB.DIR = 0b00000001; //初期値  
+    PORTB.DIR = PORTB.DIR | 0b00000001 //OR  
+    PORTB.DIR |= 0b00000001 //OR  
+
+<!-
     DDRB = 0b000000; //初期値  
     DDRB = DDRB | 0b00000001; //OR  
     DDRB |= 0b00000001; //OR  
+->
+
+## Bitwise Operators (bit演算子)
+
+機能|演算子|使用例
+--  |--    |--   
+OR	|``|`` |指定bitのセット
+AND |&	   |指定bitの取り出し, NOTと併用した指定bitのクリア
+XOR |	^	   |bit反転
+NOT |	~	   |bit反転, bitクリア
+ビットシフト(右)|	>>	|ビットシフト
+ビットシフト(左)|	<<	|ビットシフト
+
+!!! Note
+    operand: 被演算子
+
 
-OR  
+### OR  
 ```
 0  0  1  1    operand1
 0  1  0  1    operand2
@@ -121,7 +179,7 @@ OR
 ```
 1に指定したbitは、元が0でも1でも、1になる  -> 指定bitのセット  
 
-NOT  
+### NOT  
 ```
 0  1    operand1
 -----
@@ -129,7 +187,7 @@ NOT
 ```
 1に指定したbitは、0に反転する (0は1に反転する)
 
-AND  
+### AND  
 ```
 0  0  1  1    operand1
 0  1  0  1    operand2
@@ -140,14 +198,25 @@ NOTで反転した0に指定したbitは、元が0でも1でも、0になる  ->
 
 ref. [Arduino Language Reference](https://www.arduino.cc/reference/en/)
 
+## Example
 
-Bitwise Operators (bit演算子)
+````
+void setup() {
+  PORTB.DIR |= 0b00000011; //PB0とPB1をOUTPUTに設定
+}
+void loop() {
+  PORTB.OUT |= 0b00000001; //PB0をHIGH...(1)
+  delay(500);
+  PORTB.OUT |= 0b00000010; //PB1をHIGH (PB0もHIGHのまま)...(2)
+  delay(500);
+  PORTB.OUT |= 0b00000011; //PB0,PB1をLOW
+}
+````
 
-|機能|演算子|使用例|
-|-- |--    |--   |
-|OR	|``|`` |指定bitのセット|
-|AND|&	   |指定bitの取り出し, NOTと併用した指定bitのクリア|
-|XOR|	^	|bit反転|
-|NOT|	~	|bit反転, bitクリア|
-|ビットシフト(右)|	>>	|ビットシフト|
-|ビットシフト(左)|	<<	|ビットシフト|
+##### (1) (2)について
+```
+0000 0001   operand1 (ORTB.OUT)
+0000 0010   operand2
+----------
+0000 0011   ORTB.OUT = ORTB.OUT | operand2 = ORTB.OUT |= operand2
+```

docs/Instruction/tips_list.md

@@ -41,7 +41,7 @@
 - [ATtiny1614 hello buzzer board](http://tatsuro.homma.fabcloud.io/fabacademy/tips/electronics_design/ATtiny1614_hello_buzzer/)
 - [Step Response / CapacitiveSensor](http://academany.fabcloud.io/fabacademy/2021/labs/kannai/site/instruction/tips/step_response/)
 - [Write C language program to AVR-1 series](http://tatsuro.homma.fabcloud.io/fabacademy/tips/embedded_programming/write_c_program_to_avr1/)
-- [Register_bit](./tips/register_bit.md)
+- [Register bit](./tips/register_bit.md)
 
 ## Other Tips list
 - [Tips List 2021](http://academany.fabcloud.io/fabacademy/2021/labs/kannai/site/instruction/tips_list/)