Changes in 74efa8a: f133

				Chip-cn-dat/allwinner-dat/F133-dat/F133-dat.md
			
          @@ -110,4 +110,10 @@ image == https://github.com/ylyamin/allwinner_d1_hal

           - [[F133]] - [[allwinner]]

          -- [[memory-dat]]

          \ No newline at end of file

          +- [[memory-dat]]

          +

          +- [[ethernet-dat]]

          +

          +- [[HDMI-dat]]

          +

          +- [[USB-dat]]

          \ No newline at end of file

				Chip-dat/silergy-dat/SY6280-dat/SY6280-dat.md
			
          @@ -18,3 +18,8 @@ Features

           - At shutdown, OUT can be forced higher than IN

           - Automatic output discharge at shutdown

           - Compact SOT23 packages minimize the board space. 

          +

          +

          +## ref 

          +

          +- [[silergy-dat]]

          \ No newline at end of file

				Tech-dat/Interface-dat/HDMI-dat/2025-08-07-12-46-51.png
			
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				Tech-dat/Interface-dat/HDMI-dat/HDMI-dat.md
			
          @@ -37,9 +37,15 @@ HDMI_HOTPLUG

           ![](2025-02-21-13-19-09.png)

          +## SCH 

          +wiring to [[D1-dat]] - [[F133-dat]]

          +

          +![](2025-08-07-12-46-51.png)

           ## Display Interface 

          -- [[HDMI-dat]] - [[VGA-dat]] - [[DVI-dat]]

          \ No newline at end of file

          +- [[HDMI-dat]] - [[VGA-dat]] - [[DVI-dat]]

          +

          +- [[audio-dat]]

          \ No newline at end of file

				Tech-dat/Interface-dat/USB-dat/USB-OTG-dat/2025-08-07-12-51-38.png
			
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				Tech-dat/Interface-dat/USB-dat/USB-OTG-dat/USB-OTG-dat.md
			
          @@ -14,6 +14,17 @@

           ![](2025-07-16-13-10-17.png)

          +

          +SCH 2 

          +

          +- [[SY6280-dat]]

          +

          +![](2025-08-07-12-51-38.png)

          +

          +

          +

          +

          +

           ## cell phone type-c gadget 

           ![](2025-04-23-17-22-30.png)

				Tech-dat/Network-dat/ethernet-dat/2025-08-07-12-43-02.png
			
          Binary files /dev/null and b/Tech-dat/Network-dat/ethernet-dat/2025-08-07-12-43-02.png differ

				Tech-dat/Network-dat/ethernet-dat/RGMII-dat/RGMII-dat.md
			
          @@ -0,0 +1,64 @@

          +

          +# RGMII-dat

          +

          +## 🌐 What is RGMII?

          +

          +**RGMII** stands for **Reduced Gigabit Media Independent Interface**.

          +

          +It's a type of **electrical interface** used to connect a **MAC** (Media Access Controller) to a **PHY** (Physical Layer Transceiver) in Ethernet devices.

          +

          +---

          +

          +### 📦 What is it used for?

          +

          +- Used in **Gigabit Ethernet (1000 Mbps)** hardware

          +- Common in **routers, switches, SoCs, FPGAs**, and other networking devices

          +

          +---

          +

          +### 🧠 Why "Reduced"?

          +

          +RGMII reduces the number of data lines compared to **GMII**:

          +

          +| Interface | Data Lines | Speed |

          +|-----------|------------|-------|

          +| GMII      | 24         | Up to 1 Gbps |

          +| RGMII     | 12         | Up to 1 Gbps |

          +

          +🔧 RGMII uses **double data rate (DDR)** — it transfers data on **both rising and falling edges** of the clock signal, so it needs **fewer wires**.

          +

          +---

          +

          +### ⚙️ Key Features

          +

          +- ✅ Supports **10/100/1000 Mbps** Ethernet

          +- ✅ Uses **DDR clocking** to reduce pin count

          +- ✅ Total of **12 signals**:

          +  - 4 TX data

          +  - 4 RX data

          +  - TX control

          +  - RX control

          +  - TX clock

          +  - RX clock

          +

          +---

          +

          +### 🛠️ Typical RGMII Pinout

          +

          +| Signal       | Direction      | Description                  |

          +|--------------|----------------|------------------------------|

          +| TXD[3:0]     | MAC → PHY      | Transmit data                |

          +| RXD[3:0]     | PHY → MAC      | Receive data                 |

          +| TX_CTL       | MAC → PHY      | Transmit control             |

          +| RX_CTL       | PHY → MAC      | Receive control              |

          +| TXC          | MAC → PHY      | Transmit clock               |

          +| RXC          | PHY → MAC      | Receive clock                |

          +

          +---

          +

          +### 🔌 Summary

          +

          +- **RGMII = Compact, fast interface** for Gigabit Ethernet

          +- **Used between Ethernet MAC and PHY**

          +- **Saves pins** compared to GMII

          +- **Supports up to 1 Gbps** using DDR signaling

          \ No newline at end of file

				Tech-dat/Network-dat/ethernet-dat/ethernet-dat.md
			
          @@ -34,6 +34,11 @@ RJ-45 w/[[CH579-dat]]

           ![](2024-03-22-17-34-40.png)

          +transfomer == G2406S_C507595 and RJ45

          +

          +

          +![](2025-08-07-12-43-02.png)

          +

           ## CAT6

           ![](2025-04-25-02-07-43.png)

          @@ -41,4 +46,8 @@ RJ-45 w/[[CH579-dat]]

           ## ref 

          +- [[RGMII-dat]] - [[PHY-dat]] - [[TCPUDP-dat]] - [[TCPIP-dat]]

          +

          +- [[RTL8211-dat]]

          +

           - [[ethernet]]

          \ No newline at end of file

				Tech-dat/audio-dat/2025-08-07-12-47-41.png
			
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				Tech-dat/audio-dat/audio-dat.md
			
          @@ -44,7 +44,12 @@ Different Frequencies: If you'd like to test other audible frequencies, try valu

           - 262 Hz (C4) – A lower-pitched tone.

          +## SCH 

          +wiring to [[D1-dat]] - [[F133-dat]]

          +

          +

          +![](2025-08-07-12-47-41.png)

           ## code library 

          @@ -53,5 +58,6 @@ Different Frequencies: If you'd like to test other audible frequencies, try valu

           ## ref 

          +- [[video-dat]] - [[HDMI-dat]]

           - https://www.arduino.cc/reference/en/libraries/arduinofft/

          \ No newline at end of file

				Tech-dat/memory-dat/2025-08-07-12-49-24.png
			
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				Tech-dat/memory-dat/2025-08-07-12-49-50.png
			
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				Tech-dat/memory-dat/flash-dat/2025-08-07-12-50-03.png
			
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				Tech-dat/memory-dat/flash-dat/flash-dat.md
			
          @@ -37,3 +37,8 @@ NOR flash is a type of non-volatile memory that allows random read access. It is

           - SPI NOR Flash sacrifices speed and flexibility for **lower cost, lower pin count, and small size**.

           - **Parallel NOR Flash** is better for **code execution** and high-speed access.

          +

          +## SPI NAND 

          +

          +![](2025-08-07-12-50-03.png)

          +

				Tech-dat/memory-dat/memory-dat.md
			
          @@ -62,6 +62,18 @@ SCH

           ![](2025-08-07-12-41-17.png)

          +## DDR4 - Double Data Rate 4

          +

          +260P

          +

          +![](2025-08-07-12-49-24.png)

          +

          +

          +## SDIO 

          +

          +![](2025-08-07-12-49-50.png)

          +

          +

           ## use a tools instead of fat fingers 

           ![](2025-04-08-17-14-23.png)

				Tech-dat/memory-dat/sd-dat/2025-08-07-12-50-49.png
			
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				Tech-dat/memory-dat/sd-dat/sd-dat.md
			
          @@ -177,6 +177,10 @@ Note:  The SPI pins can be manually configured by using `SPI.begin(sck, miso, mo

           ![](2025-07-16-13-12-19.png)

          +SCH 3 

          +

          +![](2025-08-07-12-50-49.png)

          +

           ## ref 

           - [[memory-dat]] - [[interface-dat]] - [[sd-card-holder-dat]] - [[microsd-card-holder-dat]]

...	...	@@ -62,6 +62,18 @@ SCH
62	62	![](2025-08-07-12-41-17.png)
63	63
64	64
	65	+## DDR4 - Double Data Rate 4
	66	+
	67	+260P
	68	+
	69	+![](2025-08-07-12-49-24.png)
	70	+
	71	+
	72	+## SDIO
	73	+
	74	+![](2025-08-07-12-49-50.png)
	75	+
	76	+
65	77	## use a tools instead of fat fingers
66	78
67	79	![](2025-04-08-17-14-23.png)

...	...	@@ -177,6 +177,10 @@ Note: The SPI pins can be manually configured by using `SPI.begin(sck, miso, mo
177	177
178	178	![](2025-07-16-13-12-19.png)
179	179
	180	+SCH 3
	181	+
	182	+![](2025-08-07-12-50-49.png)
	183	+
180	184	## ref
181	185
182	186	- [[memory-dat]] - [[interface-dat]] - [[sd-card-holder-dat]] - [[microsd-card-holder-dat]]

...	...	@@ -110,4 +110,10 @@ image == https://github.com/ylyamin/allwinner_d1_hal
110	110
111	111	- [[F133]] - [[allwinner]]
112	112
113		-- [[memory-dat]]
...	...	\ No newline at end of file
	0	+- [[memory-dat]]
	1	+
	2	+- [[ethernet-dat]]
	3	+
	4	+- [[HDMI-dat]]
	5	+
	6	+- [[USB-dat]]
...	...	\ No newline at end of file

...	...	@@ -18,3 +18,8 @@ Features
18	18	- At shutdown, OUT can be forced higher than IN
19	19	- Automatic output discharge at shutdown
20	20	- Compact SOT23 packages minimize the board space.
	21	+
	22	+
	23	+## ref
	24	+
	25	+- [[silergy-dat]]
...	...	\ No newline at end of file

...	...	@@ -37,9 +37,15 @@ HDMI_HOTPLUG
37	37
38	38	![](2025-02-21-13-19-09.png)
39	39
	40	+## SCH
40	41
	42	+wiring to [[D1-dat]] - [[F133-dat]]
	43	+
	44	+![](2025-08-07-12-46-51.png)
41	45
42	46
43	47	## Display Interface
44	48
45		-- [[HDMI-dat]] - [[VGA-dat]] - [[DVI-dat]]
...	...	\ No newline at end of file
	0	+- [[HDMI-dat]] - [[VGA-dat]] - [[DVI-dat]]
	1	+
	2	+- [[audio-dat]]
...	...	\ No newline at end of file

...	...	@@ -14,6 +14,17 @@
14	14
15	15	![](2025-07-16-13-10-17.png)
16	16
	17	+
	18	+SCH 2
	19	+
	20	+- [[SY6280-dat]]
	21	+
	22	+![](2025-08-07-12-51-38.png)
	23	+
	24	+
	25	+
	26	+
	27	+
17	28	## cell phone type-c gadget
18	29
19	30	![](2025-04-23-17-22-30.png)

...	...	@@ -0,0 +1,64 @@
	1	+
	2	+# RGMII-dat
	3	+
	4	+## 🌐 What is RGMII?
	5	+
	6	+RGMII stands for Reduced Gigabit Media Independent Interface.
	7	+
	8	+It's a type of electrical interface used to connect a MAC (Media Access Controller) to a PHY (Physical Layer Transceiver) in Ethernet devices.
	9	+
	10	+---
	11	+
	12	+### 📦 What is it used for?
	13	+
	14	+- Used in Gigabit Ethernet (1000 Mbps) hardware
	15	+- Common in routers, switches, SoCs, FPGAs, and other networking devices
	16	+
	17	+---
	18	+
	19	+### 🧠 Why "Reduced"?
	20	+
	21	+RGMII reduces the number of data lines compared to GMII:
	22	+
	23	+\| Interface \| Data Lines \| Speed \|
	24	+\|-----------\|------------\|-------\|
	25	+\| GMII \| 24 \| Up to 1 Gbps \|
	26	+\| RGMII \| 12 \| Up to 1 Gbps \|
	27	+
	28	+🔧 RGMII uses double data rate (DDR) — it transfers data on both rising and falling edges of the clock signal, so it needs fewer wires.
	29	+
	30	+---
	31	+
	32	+### ⚙️ Key Features
	33	+
	34	+- ✅ Supports 10/100/1000 Mbps Ethernet
	35	+- ✅ Uses DDR clocking to reduce pin count
	36	+- ✅ Total of 12 signals:
	37	+ - 4 TX data
	38	+ - 4 RX data
	39	+ - TX control
	40	+ - RX control
	41	+ - TX clock
	42	+ - RX clock
	43	+
	44	+---
	45	+
	46	+### 🛠️ Typical RGMII Pinout
	47	+
	48	+\| Signal \| Direction \| Description \|
	49	+\|--------------\|----------------\|------------------------------\|
	50	+\| TXD[3:0] \| MAC → PHY \| Transmit data \|
	51	+\| RXD[3:0] \| PHY → MAC \| Receive data \|
	52	+\| TX_CTL \| MAC → PHY \| Transmit control \|
	53	+\| RX_CTL \| PHY → MAC \| Receive control \|
	54	+\| TXC \| MAC → PHY \| Transmit clock \|
	55	+\| RXC \| PHY → MAC \| Receive clock \|
	56	+
	57	+---
	58	+
	59	+### 🔌 Summary
	60	+
	61	+- RGMII = Compact, fast interface for Gigabit Ethernet
	62	+- Used between Ethernet MAC and PHY
	63	+- Saves pins compared to GMII
	64	+- Supports up to 1 Gbps using DDR signaling
...	...	\ No newline at end of file

...	...	@@ -34,6 +34,11 @@ RJ-45 w/[[CH579-dat]]
34	34
35	35	![](2024-03-22-17-34-40.png)
36	36
	37	+transfomer == G2406S_C507595 and RJ45
	38	+
	39	+
	40	+![](2025-08-07-12-43-02.png)
	41	+
37	42	## CAT6
38	43
39	44	![](2025-04-25-02-07-43.png)
...	...	@@ -41,4 +46,8 @@ RJ-45 w/[[CH579-dat]]
41	46
42	47	## ref
43	48
	49	+- [[RGMII-dat]] - [[PHY-dat]] - [[TCPUDP-dat]] - [[TCPIP-dat]]
	50	+
	51	+- [[RTL8211-dat]]
	52	+
44	53	- [[ethernet]]
...	...	\ No newline at end of file

...	...	@@ -44,7 +44,12 @@ Different Frequencies: If you'd like to test other audible frequencies, try valu
44	44	- 262 Hz (C4) – A lower-pitched tone.
45	45
46	46
	47	+## SCH
47	48
	49	+wiring to [[D1-dat]] - [[F133-dat]]
	50	+
	51	+
	52	+![](2025-08-07-12-47-41.png)
48	53
49	54	## code library
50	55
...	...	@@ -53,5 +58,6 @@ Different Frequencies: If you'd like to test other audible frequencies, try valu
53	58
54	59	## ref
55	60
	61	+- [[video-dat]] - [[HDMI-dat]]
56	62
57	63	- https://www.arduino.cc/reference/en/libraries/arduinofft/
...	...	\ No newline at end of file

...	...	@@ -37,3 +37,8 @@ NOR flash is a type of non-volatile memory that allows random read access. It is
37	37	- SPI NOR Flash sacrifices speed and flexibility for lower cost, lower pin count, and small size.
38	38	- Parallel NOR Flash is better for code execution and high-speed access.
39	39
	40	+
	41	+## SPI NAND
	42	+
	43	+![](2025-08-07-12-50-03.png)
	44	+