RTLPlayground/doc/devices/SWTGW215AS.md

ZX-SWTGW215AS

Brands

Brand	Type	Managed	PCB	Flash	Chip RTL
Lianguo	ZX-SWTGW215AS	Yes	PCB-SWTG115AS-V2.0	FM25Q16A	8272

RTLPlayground target

Use machine target MACHINE_LIANGUO_ZX_SWTGW215AS for this device.

Physical hardware verification: 5x RJ45 ports + 1x SFP port. Port 5 RJ45 is interfaced through a RTL8221B IC.

PCB

Connectors

Port overview

┌──────────────────────────────────────────────────────────────────────────────────┐
│                                                                   ┌──────────┐   │
│     ┌─────────┐ ┌─────────┐ ┌─────────┐ ┌─────────┐ ┌─────────┐   │ SFP (J4) │   │
│     │  RJ45   │ │  RJ45   │ │  RJ45   │ │  RJ45   │ │  RJ45   │   │  PORT 6  │   │
│     │  PORT 1 │ │  PORT 2 │ │  PORT 3 │ │  PORT 4 │ │  PORT 5 │   │  LOG  8  │   │
│  O  │  LOG  4 │ │  LOG  5 │ │  LOG  6 │ │  LOG  7 │ │  LOG  3 │   │ SerDes 1 │   │
│ RST └─────────┘ └─────────┘ └─────────┘ └─────────┘ └─────────┘   └──────────┘   │
└──────────────────────────────────────────────────────────────────────────────────┘

Type	RTLPlayground logical ports	Physical index
RJ45	3, 4, 5, 6, 7	1-5
SFP	8	6

J4

• Location: SFP connector J4.
• Connected to: 10GMAC number 8, SerDes 1.

J4 SFP PINs	Signal	GPIO	Notes
3	TX_DISABLE	GPIO_NA	Not connected
4	MODDEF2 – SDA	GPIO39	I2C SDA
5	MODDEF1 – SCL	GPIO40	I2C SCL
6	MODDEF0 – PRESENT	GPIO30	Detect
8	LOS	GPIO37	RX Loss of Signal

Notes

• Not all signals were mapped mechanically, hence they've been left out of documentation.

T3, Slave Interface

This connector goes to U4 I2C EEPROM and U10 SPI FLASH (mappings identical to SWTG024AS).

For detailed Slave Interface functionality and protocol information, see T3 documentation in SWTG024AS.md.

T3 pin	what	Signal
1	U4-P6, 33R U10-P6	I2C-SCL, SPI-CLK, Slave SCK/SCL/MDC/EE_SCL
2	GND	---
3	U4-P5, U10-P5	I2C-SDA, SPI-DI/DO, Slave SDI/SDA/MDIO/EE_SDA
4	VCC
5	33R -> U10-P2	SPI-DO/D1
6	U10-P1	SPI-CS

Notes

• 1 pin is square shaped.

T5, Serial Console

T5 pin	GPIO	Signal
1	GPIO31	U0TXD (Output)
2	GND
3	GPIO32	U0RXD (Input)
4	3V3

Notes

• 1 pin is square shaped.

T8

T8 pin	GPIO	Signal
1	GPIO46
2	GND
3	GPIO48
4	3V3
5	GPIO47
6	GPIO49

Notes

• 1 pin is square shaped.
• Mapping unverified but assumed the same as LIANGUO SWTG024AS.

Reset Circuit

Function	GPIO
Reset button	GPIO54

Notes

• Circuit is active-low

GPIO

Note: T3/U4/U10-related signal annotations below are copied from LIANGUO SWTG024AS T3 section as well as T8 port from LIANGUO SWTG024AS T8 section. 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
00000001	GPIO00				GPIO32	T5-3	U0RXD
00000002	GPIO01				GPIO33
00000004	GPIO02				GPIO34
00000008	GPIO03				GPIO35
00000010	GPIO04				GPIO36
00000020	GPIO05				GPIO37	J4-8	SFP LOS
00000040	GPIO06				GPIO38
00000080	GPIO07				GPIO39	J4-4	SFP I2C SDA
00000100	GPIO08				GPIO40	J4-5	SFP I2C SCL
00000200	GPIO09				GPIO41
00000400	GPIO10				GPIO42	U10-P6, U4-P6, T3-1	SPI FLASH CLK / I2C-SCL (from LIANGUO SWTG024AS)
00000800	GPIO11				GPIO43	U10-P5, U4-P5, T3-3	SPI FLASH DI/IO0 / I2C-SDA (from LIANGUO SWTG024AS)
00001000	GPIO12				GPIO44	U10-P2, T3-5	SPI FLASH DO/IO1 (from LIANGUO SWTG024AS)
00002000	GPIO13	PORT1 LED GREEN			GPIO45	U10-P1, T3-6	SPI FLASH CS (from LIANGUO SWTG024AS)
00004000	GPIO14	PORT1 LED ORANGE			GPIO46	T8-1	(from LIANGUO SWTG024AS)
00008000	GPIO15				GPIO47	T8-5	(from LIANGUO SWTG024AS)
00010000	GPIO16	PORT2 LED GREEN			GPIO48	T8-3	(from LIANGUO SWTG024AS)
00020000	GPIO17	PORT2 LED ORANGE			GPIO49	T8-6	(from LIANGUO SWTG024AS)
00040000	GPIO18	PORT3 LED GREEN			GPIO50
00080000	GPIO19	PORT3 LED ORANGE			GPIO51
00100000	GPIO20	PORT4 LED GREEN			GPIO52
00200000	GPIO21	PORT4 LED ORANGE			GPIO53
00400000	GPIO22	PORT5 LED GREEN			GPIO54	Reset Button	GPIO54_ACL_BIT2_EN
00800000	GPIO23	PORT5 LED ORANGE			GPIO55
01000000	GPIO24	SFP LED GREEN	J4		GPIO56
02000000	GPIO25				GPIO57
04000000	GPIO26				GPIO58
08000000	GPIO27				GPIO59
10000000	GPIO28	LED-SYSTEM			GPIO60
20000000	GPIO29				GPIO61
40000000	GPIO30	J4-6	SFP DETECT		GPIO62
80000000	GPIO31	T5-1	U0TXD		GPIO63

LEDs

NAME	GPIO	Port(s)	Function	Notes
PORT1 LED GREEN	GPIO13	5	Activity	LEDS_2G5, LEDS_LINK, LEDS_ACT
PORT1 LED ORANGE	GPIO14	5	Speed	LEDS_1G, LEDS_100M, LEDS_10M, LEDS_LINK, LEDS_ACT
PORT2 LED GREEN	GPIO16	4	Activity	LEDS_2G5, LEDS_LINK, LEDS_ACT
PORT2 LED ORANGE	GPIO17	4	Speed	LEDS_1G, LEDS_100M, LEDS_10M, LEDS_LINK, LEDS_ACT
PORT3 LED GREEN	GPIO18	3	Activity	LEDS_2G5, LEDS_LINK, LEDS_ACT
PORT3 LED ORANGE	GPIO19	3	Speed	LEDS_1G, LEDS_100M, LEDS_10M, LEDS_LINK, LEDS_ACT
PORT4 LED GREEN	GPIO20	2	Activity	LEDS_2G5, LEDS_LINK, LEDS_ACT
PORT4 LED ORANGE	GPIO21	2	Speed	LEDS_1G, LEDS_100M, LEDS_10M, LEDS_LINK, LEDS_ACT
PORT5 LED GREEN	GPIO22	1	Activity	LEDS_2G5, LEDS_LINK, LEDS_ACT
PORT5 LED ORANGE	GPIO23	1	Speed	LEDS_1G, LEDS_100M, LEDS_10M, LEDS_LINK, LEDS_ACT
SFP LED GREEN	GPIO24	6 (SFP J4)	Multi-speed	LEDS_10G, LEDS_5G, LEDS_2G5, LEDS_1G, LEDS_100M, LEDS_LINK, LEDS_ACT
LED-SYSTEM	GPIO28	---	System status	---

Notes

While SWTG024AS.md can be used as a general reference for hardware concepts and interface specifications, this device should not be assumed to be identical beside the difference implicitely highlighted below. Not all information has been validated for compatibility with the SWTG215AS. Consult the SWTG024AS documentation with caution and verify any critical details against this device's.