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133 lines
5.1 KiB
Markdown
133 lines
5.1 KiB
Markdown
### 2M-PCB23-V3.1
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## Brands
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|Brand|Type|Managed|PCB|Flash|Chip RTL|
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|---|---|---|---|---|---|
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| keepLINK | KP-9000-9XHML-X | Yes| 2M-PCB23-V3.1 | 2M| 8273N + 8224N |
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# Connectors
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|`J4` SFP PINs | Signal | Component | GPIO | Notes |
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|---|---|---|---|---|
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|2| TX_FAULT | | --- | |
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|3| TX_DISABLE | | --- | Pull down - 0R |
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|4| MODDEF2 – SDA | b-r273 | GPIO39 | |
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|5| MODDEF1 – SCL | b-r274 | GPIO40 | |
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|6| MODDEF0 – PRESENT | B-R275 | GPIO38 | |
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|7| RATE SEL | | --- | |
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|8| LOS | B-R276 | GPIO38 | |
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|9| TO? | | --- | |
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Note: component numbering `<L>-<REFDES>-<SIDE>`
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* L: Layer, T=Top, B=Bottom
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* REFDEES: full silkscreen like `R123`
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* SIDE: Side of the component. when the rj45 are facing towards you are you can read the silkscreen normal.
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L = Left, R=right, B=bottom, T=top or P with a pin number.
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### T8, serial console
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|`T9` pin|GPIO|Signal|
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|---|---|---|
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| 1 | GPIO31 | U0TXD (Output) |
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| 2 | GND | PWR |
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| 3 | GPIO32 | U0RXD (Input) |
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| 4 | 3V3 | PWR |
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### T7
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|`T7` pin|what|Signal|
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|---|---|---|
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| 1 | GPIO | |
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| 2 | GND | |
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| 3 | GPIO | |
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| 4 | 3V3 | |
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| 5 | GPIO | |
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| 6 | GPIO | |
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### T9
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|`T9` SMI | Signal | Component | GPIO | Notes |
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|---|---|---|---|---|
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|1| MDO | SMI-MDO | GPIO41 | |
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|2| GND | PWR | | |
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|3| MDC | SMI-MDC | GPio40 | |
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### T10
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|`T10` pin|what|Signal|
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|---|---|---|
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| 1 | GPIO49 | |
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| 2 | GPIO47 | |
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| 3 | 3V3 | |
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| 4 | GPIO48 | |
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| 5 | GND | |
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| 6 | GPIO46 | |
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# Reset ciruit
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Reset-line found at `T-D6-L`, `T-R83`, `T-R97`, `T-R94`, `T-R93` active-low.
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# GPIO
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| HEX VAL. | GPIO | Component | What | | GPIO | Component | What |
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| -------- | ------ | ---- | ---- | ---- | ---- | ---- | ---- |
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| 00000001 | GPIO00 | T-R34-R, P1-LED-YL |? | | GPIO32 | B-r126-r | U0RXD |
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| 00000002 | GPIO01 | T-R99-R, P1-LED-GR |? | | GPIO33 | | |
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| 00000004 | GPIO02 | |? | | GPIO34 | B-R172, To RTL8225 | Already driver HIGH INT? |
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| 00000008 | GPIO03 | T-R113-R, P2-LED-GR |? | | GPIO35 | B-R173, To RTL8225 | Easy to pulldown Reset? |
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| 00000010 | GPIO04 | T-R115-R, P3-LED-YL |? | | GPIO36 || | |
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| 00000020 | GPIO05 | T-R117-R, P3-LED-GR |? | | GPIO37 | To RTL8225 | Already driver low I2C-SCL? | |
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| 00000040 | GPIO06 | |? | | GPIO38 | sfp-6 via B-R275, sfp-8 via B-R276 | |
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| 00000080 | GPIO07 | |? | | GPIO39 | sfp-4, b-r273, B-r143 | |
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| 00000100 | GPIO08 | | | | GPIO40 | T9-2, sfp-5 b-r274, B-r146 | SMI-MDC |
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| 00000200 | GPIO09 | |LEDx[^1] | | GPIO41 | T9-1, | SMI-MDO , B-r143 |
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| 00000400 | GPIO10 | | | | GPIO42 | U6?8?-P6, T-R | SPI-MEMORY, CLK |
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| 00000800 | GPIO11 | |LEDx[^1] | | GPIO43 | U6?8?-P5, T-R | SPI-MEMORY, DI,IO0 |
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| 00001000 | GPIO12 | |LEDx[^1] | | GPIO44 | U6?8?-P2, T-R | SPI-MEMORY, DO,IO1 |
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| 00002000 | GPIO13 | |LEDx[^1] | | GPIO45 | U6?8?-P1, T-R | SPI-MEMORY, CS |
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| 00004000 | GPIO14 | |LEDx[^1] | | GPIO46 | T10-6 | |
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| 00008000 | GPIO15 | |LEDx[^1] | | GPIO47 | T10-2 | |
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| 00010000 | GPIO16 | |LEDx[^1] | | GPIO48 | T10-4, J6 (BUTTON RESET) | |
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| 00020000 | GPIO17 | |LEDx[^1] | | GPIO49 | T10-1 | |
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| 00040000 | GPIO18 | |LEDx[^1] | | GPIO50 | | |
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| 00080000 | GPIO19 | |LEDx[^1] | | GPIO51 | | |
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| 00100000 | GPIO20 | |LEDx[^1] | | GPIO52 | | |
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| 00200000 | GPIO21 | P7-LED-GR, B-R139 |LEDx[^1] | | GPIO53 | | |
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| 00400000 | GPIO22 | |LEDx[^1] | | GPIO54 | | |
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| 00800000 | GPIO23 | |LEDx[^1] | | GPIO55 | | |
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| 01000000 | GPIO24 | P8-led-yellow,b-r154 |LEDx | | GPIO56 | | |
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| 02000000 | GPIO25 | | | | GPIO57 | | |
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| 04000000 | GPIO26 | |LEDx | | GPIO58 | | |
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| 08000000 | GPIO27 | |? | | GPIO59 | | |
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| 10000000 | GPIO28 | | | | GPIO60 | | |
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| 20000000 | GPIO29 | | | | GPIO61 | | |
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| 40000000 | GPIO30 | |SFP-DETE | | GPIO62 | To RTL8225 | Already driver INT? | |
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| 80000000 | GPIO31 | B-r129-r? |U0TXD | | GPIO63 | | |
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## GPIO Register Input value
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GPIO 1: 0a7ffbdd
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GPIO 0: effb6dff
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# LEDs
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| NAME | COMPONENTS | GPIO |
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| ---- | ---------- | ---- |
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| SYSTEM | | ? |
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| SFP | | ? |
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# Power supply
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Board has two supply rails.
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`0.95` and `3.3` volt.
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## `0.95` Core Voltage.
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Voltage is crated by a `MP2225GJ` Buck converter.
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0.95V must be within 3%.
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## `3.3` Voltage
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Voltage is crated by a `MP2225GJ` Buck converter.
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3.3V must be within 4.5%.
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Chip can deliver up to 5A and the sweetspot is at 2A.
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So higher power SFP-modules should work.
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[^1]: LEDs are found by just plugin a RJ45 connector and see with cmd `gpio` the status change. But the bit pattern for port 1,2 are diffrent from port 3,4. |