Pin Assignments and Functions
This section describes the pin assignments and pin functions.
Pin assignments¶
Pin functions¶
| Pin | Name | Pin type | Description |
|---|---|---|---|
| 1 | VDD | Power | Power supply (3.3V) |
| 2 | N.C. | No connection | Do not connect |
| 3 | IRQ | Digital output | Interrupt signal, active low |
| 4 | CS | Digital input | Chip select, active low |
| 5 | SCK | Digital input | SPI clock |
| 6 | MOSI | Digital input | SPI Master Out, Slave In |
| 7 | MISO | Digital output | SPI Master In, Slave Out |
| 8 | DMX_TXD | Digital output | DMX TXD |
| 9 | RS485_DE | Digital output | RS485 driver control signal |
| 10 | RS485_RE | Digital output | RS485 driver control signal |
| 11 | DMX_RXD | Digital input | DMX RXD (3.3 V max) |
| 12 | VDD | Power | Power supply (3.3V) |
| 13 | VSS | Power | Ground (0V) |
| 14 | RDI_LVL0 | Digital output | Radio level LED |
| 15 | RDI_LVL1 | Digital output | Radio level LED |
| 16 | RDI_LVL2 | Digital output | Radio level LED |
| 17 | RDI_LVL3 | Digital output | Radio level LED |
| 18 | RDI_LVL4 | Digital output | Radio level LED |
| 19 | N.C. | No connection | Do not connect |
| 20 | DMX_LED | Digital output | DMX LED |
| 21 | LINKED | Digital output | Linked to transmitter LED |
| 22 | RF_LINK | Digital output | RF link LED |
| 23 | RESET | Reset | Chip reset, active low |
| 24 | N.C. | No connection | Do not connect |
| 25 | N.C. | No connection | Do not connect |
| 26 | N.C. | No connection | Do not connect |
| 27 | N.C. | No connection | Do not connect |
| 28 | N.C. | No connection | Do not connect |
| 29 | CAP1 | Analog output | Capacitor connection |
| 30 | RF_BIAS | Analog output | RF circuitry biasing |
| 31 | RF1 | RF | Differential antenna connection |
| 32 | RF2 | RF | Differential antenna connection |
| 33 | VSS | Power | Ground (0V) |
| 34 | VSS | Power | Ground (0V) |
| 35 | VDD | Power | Power supply (3.3V) |
| 36 | VDD | Power | Power supply (3.3V) |
| 37 | XTAL1 | Analog input | Connection for 16 MHz crystal or 16 MHz clock reference |
| 38 | XTAL2 | Analog output | Connection for 16 MHz crystal |
| 39 | CAP2 | Analog output | Capacitor connection |
| 40 | N.C. | No connection | Do not connect |
| 41 | N.C. | No connection | Do not connect |
| 42 | N.C. | No connection | Do not connect |
| 43 | N.C. | No connection | Do not connect |
| 44 | N.C. | No connection | Do not connect |
| 45 | LINK_SW | Digital input | Link control switch input |
| 46 | STATUS_LED | Digital output | Status LED |
| 47 | N.C. | No connection | Do not connect |
| 48 | N.C. | No connection | Do not connect |
| SLUG | GND | Power | Must be connected to Ground (0V) |