Pin Assignments and Functions
This section describes the pin assignments and pin functions.
Pin assignments¶
Module seen from the top
Pin functions¶
| Pin | Name | Pin type | Description |
|---|---|---|---|
| 1 | VSS | Power | Ground (0V) |
| 2 | IRQ | Digital output | Interrupt signal, active low |
| 3 | CS | Digital input | Chip select, active low |
| 4 | SCK | Digital input | SPI clock |
| 5 | MOSI | Digital input | SPI Master Out, Slave In |
| 6 | MISO | Digital output | SPI Master In, Slave Out |
| 7 | VSS | Power | Ground (0V) |
| 8 | DMX_TXD | Digital output | DMX TXD |
| 9 | VSS | Power | Ground (0V) |
| 10 | RS485_DE | Digital output | RS485 driver control signal |
| 11 | RS485_RE | Digital output | RS485 driver control signal |
| 12 | DMX_RXD | Digital input | DMX RXD (3.3 V max) |
| 13 | RDI_LVL0 | Digital output | Radio level LED |
| 14 | RDI_LVL1 | Digital output | Radio level LED |
| 15 | RDI_LVL2 | Digital output | Radio level LED |
| 16 | RDI_LVL3 | Digital output | Radio level LED |
| 17 | RDI_LVL4 | Digital output | Radio level LED |
| 18 | RDM | Digital output | RDM LED |
| 19 | DMX | Digital output | DMX LED |
| 20 | N.C. | No connection | Do not connect |
| 21 | N.C. | No connection | Do not connect |
| 22 | VSS | Power | Ground (0V) |
| 23 | VSS | Power | Ground (0V) |
| 24 | VSS | Power | Ground (0V) |
| 25 | VSS | Power | Ground (0V) |
| 26 | VSS | Power | Ground (0V) |
| 27 | VSS | Power | Ground (0V) |
| 28 | VSS | Power | Ground (0V) |
| 29 | VSS | Power | Ground (0V) |
| 30 | VSS | Power | Ground (0V) |
| 31 | ANT_SEL | Digital input | RF Antenna select |
| 32 | LINK_SW | Digital input | Link control switch input |
| 33 | STATUS_LED | Digital output | Status LED |
| 34 | LINKED | Digital output | Linked to transmitter LED |
| 35 | RF_LINK | Digital output | RF link LED |
| 36 | VDD | Power | Power supply (3.3V) |
| 37 | VSS | Power | Ground (0V) |
| ANT | RF ANT | RF | Antenna connector |
Typical Application Circuit¶
