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Correction on IO mappings

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Add further clarification on mapping assumptions
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bennydiamond
2026-03-27 20:56:09 -04:00
parent 5f1cd4cce0
commit b64dfd8c25
1 changed files with 15 additions and 13 deletions
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doc/devices/SWTGW215AS.md
+15 -13
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@@ -44,8 +44,8 @@ Port 5 RJ45 is interfaced through a RTL8221B IC.
|`J4` SFP PINs | Signal | GPIO | Notes | |`J4` SFP PINs | Signal | GPIO | Notes |
|---|---|---|---| |---|---|---|---|
|3| TX_DISABLE | GPIO_NA | Not connected | |3| TX_DISABLE | GPIO_NA | Not connected |
|4| MODDEF2 – SDA | GPIO39 | I2C SDA (shared with U4) | |4| MODDEF2 – SDA | GPIO39 | I2C SDA |
|5| MODDEF1 – SCL | GPIO40 | I2C SCL (shared with both SFP/U4) | |5| MODDEF1 – SCL | GPIO40 | I2C SCL |
|6| MODDEF0 – PRESENT | GPIO30 | Detect | |6| MODDEF0 – PRESENT | GPIO30 | Detect |
|8| LOS | GPIO37 | RX Loss of Signal | |8| LOS | GPIO37 | RX Loss of Signal |
### Notes ### Notes
@@ -93,7 +93,7 @@ For detailed Slave Interface functionality and protocol information, see [T3 doc
### Notes ### Notes
* 1 pin is square shaped. * 1 pin is square shaped.
* Mapping unverified but assumed the same as [SWTG024AS.md] * Mapping unverified but assumed the same as [LIANGUO SWTG024AS](SWTG024AS.md#t8).
# Reset Circuit # Reset Circuit
| Function | GPIO | | Function | GPIO |
@@ -104,6 +104,8 @@ For detailed Slave Interface functionality and protocol information, see [T3 doc
# GPIO # GPIO
Note: T3/U4/U10-related signal annotations below are copied from [LIANGUO SWTG024AS T3 section](SWTG024AS.md#t3-slave-interface) as well as T8 port from [LIANGUO SWTG024AS T8 section](SWTG024AS.md#t8). They should be treated as assumed identical for ZX-SWTGW215AS as it has not been 100% confirmed true at the moment.
| HEX VAL. | GPIO | Component / Purpose | Notes | | GPIO | Component / Purpose | Notes | | HEX VAL. | GPIO | Component / Purpose | Notes | | GPIO | Component / Purpose | Notes |
| -------- | ------ | ---- | ---- | ---- | ---- | ---- | ---- | | -------- | ------ | ---- | ---- | ---- | ---- | ---- | ---- |
| 00000001 | GPIO00 | | | | GPIO32 | T5-3 | U0RXD | | 00000001 | GPIO00 | | | | GPIO32 | T5-3 | U0RXD |
@@ -113,17 +115,17 @@ For detailed Slave Interface functionality and protocol information, see [T3 doc
| 00000010 | GPIO04 | | | | GPIO36 | | | | 00000010 | GPIO04 | | | | GPIO36 | | |
| 00000020 | GPIO05 | | | | GPIO37 | J4-8 | SFP LOS | | 00000020 | GPIO05 | | | | GPIO37 | J4-8 | SFP LOS |
| 00000040 | GPIO06 | | | | GPIO38 | | | | 00000040 | GPIO06 | | | | GPIO38 | | |
| 00000080 | GPIO07 | | | | GPIO39 | J4-4, T3 | I2C-SDA (U4/SFP) | | 00000080 | GPIO07 | | | | GPIO39 | J4-4 | SFP I2C SDA |
| 00000100 | GPIO08 | | | | GPIO40 | J4-5, T3 | I2C-SCL (U4/SFP) | | 00000100 | GPIO08 | | | | GPIO40 | J4-5 | SFP I2C SCL |
| 00000200 | GPIO09 | | | | GPIO41 | | | | 00000200 | GPIO09 | | | | GPIO41 | | |
| 00000400 | GPIO10 | | | | GPIO42 | U10-P6, T3 | SPI FLASH CLK | | 00000400 | GPIO10 | | | | GPIO42 | U10-P6, U4-P6, T3-1 | SPI FLASH CLK / I2C-SCL (from [LIANGUO SWTG024AS](SWTG024AS.md#gpio)) |
| 00000800 | GPIO11 | | | | GPIO43 | U10-P5, T3 | SPI FLASH DI/IO0 | | 00000800 | GPIO11 | | | | GPIO43 | U10-P5, U4-P5, T3-3 | SPI FLASH DI/IO0 / I2C-SDA (from [LIANGUO SWTG024AS](SWTG024AS.md#gpio)) |
| 00001000 | GPIO12 | | | | GPIO44 | U10-P2, T3 | SPI FLASH DO/IO1 | | 00001000 | GPIO12 | | | | GPIO44 | U10-P2, T3-5 | SPI FLASH DO/IO1 (from [LIANGUO SWTG024AS](SWTG024AS.md#gpio)) |
| 00002000 | GPIO13 | PORT1 LED GREEN | | | GPIO45 | U10-P1, T3 | SPI FLASH CS | | 00002000 | GPIO13 | PORT1 LED GREEN | | | GPIO45 | U10-P1, T3-6 | SPI FLASH CS (from [LIANGUO SWTG024AS](SWTG024AS.md#gpio)) |
| 00004000 | GPIO14 | PORT1 LED ORANGE | | | GPIO46 | T8-1 | | | 00004000 | GPIO14 | PORT1 LED ORANGE | | | GPIO46 | T8-1 | (from [LIANGUO SWTG024AS](SWTG024AS.md#gpio)) |
| 00008000 | GPIO15 | | | | GPIO47 | T8-5 | | | 00008000 | GPIO15 | | | | GPIO47 | T8-5 | (from [LIANGUO SWTG024AS](SWTG024AS.md#gpio)) |
| 00010000 | GPIO16 | PORT2 LED GREEN | | | GPIO48 | T8-3 | | | 00010000 | GPIO16 | PORT2 LED GREEN | | | GPIO48 | T8-3 | (from [LIANGUO SWTG024AS](SWTG024AS.md#gpio)) |
| 00020000 | GPIO17 | PORT2 LED ORANGE | | | GPIO49 | T8-6 | | | 00020000 | GPIO17 | PORT2 LED ORANGE | | | GPIO49 | T8-6 | (from [LIANGUO SWTG024AS](SWTG024AS.md#gpio)) |
| 00040000 | GPIO18 | PORT3 LED GREEN | | | GPIO50 | | | | 00040000 | GPIO18 | PORT3 LED GREEN | | | GPIO50 | | |
| 00080000 | GPIO19 | PORT3 LED ORANGE | | | GPIO51 | | | | 00080000 | GPIO19 | PORT3 LED ORANGE | | | GPIO51 | | |
| 00100000 | GPIO20 | PORT4 LED GREEN | | | GPIO52 | | | | 00100000 | GPIO20 | PORT4 LED GREEN | | | GPIO52 | | |