The nRF5340 Audio Development Kit (DK) has several test points that can be useful during development and debugging.
The following table is a complete overview of the test points.
| Designator | Net | Description | Size | Layer |
|---|---|---|---|---|
| TP1 | NetTP1-1 | IN1LP_1 pin of CS47L63 | 1.5 mm | Bottom |
| TP2 | NetTP2-1 | IN1LN_1 pin of CS47L63 | 1.5 mm | Bottom |
| TP3 | NetTP3-1 | IN1RP pin of CS47L63 | 1.5 mm | Bottom |
| TP4 | NetTP4-1 | IN1RN pin of CS47L63 | 1.5 mm | Bottom |
| TP5 | NetTP5-1 | IN2LN pin of CS47L63 | 1.5 mm | Bottom |
| TP6 | NetTP6-1 | IN2RN pin of CS47L63 | 1.5 mm | Bottom |
| TP7 | HW_CODEC_AUX_I2C.SCL | AUX SCL pin of CS47L63 | 1.5 mm | Top |
| TP8 | HW_CODEC_AUX_I2C.SDA | AUX SDA pin of CS47L63 | 1.5 mm | Top |
| TP9 | P0.07/AIN3 | RGB LED 1 Red color input pin | 1.5 mm | Top |
| TP10 | P0.28/AIN7 | RGB LED 2 Red color input pin | 1.5 mm | Top |
| TP11 | P1.01 | LED 3 input pin | 1.5 mm | Top |
| TP12 | P0.04/AIN0 | Button 3 | 1.5 mm | Top |
| TP13 | VDD_EXT_HW_CODEC.1V2 | External HW CODEC 1.2 V supply | 1.5 mm | Top |
| TP14 | VDD_EXT_HW_CODEC.1V8 | External HW CODEC 1.8 V supply | 1.5 mm | Top |
| TP15 | BAT_NTC | Li-Po battery NTC pin | 1.5 mm | Top |
| TP16 | BATTERY | Li-Po battery voltage after power switch | 1.5 mm | Top |
| TP17 | NetC41-1 | Universal Serial Bus (USB) voltage after power switch | 1.5 mm | Top |
| TP18 | NetC43-2 | USB voltage before power switch | 1.5 mm | Top |
| TP19 | HEADPHONE.OUTP | Headphone jack tip | 1.5 mm | Top |
| TP20 | HEADPHONE.OUTN | Headphone jack sleeve | 1.5 mm | Top |
| TP21 | DU_N | USB connector D- | 1.5 mm | Top |
| TP22 | DU_P | USB connector D+ | 1.5 mm | Top |
| TP23 | SWDIO | nRF5340 Serial Wire Debug (SWD) data | 1.5 mm | Top |
| TP24 | SWDCLK | nRF5340 SWD clock | 1.5 mm | Top |
| TP25 | RESET | nRF5340 Reset | 1.5 mm | Top |
| TP26 | SD_CS | SD card slot CS line | 1.5 mm | Top |
| TP27 | SD_SCK | SD card slot SCK line | 1.5 mm | Top |
| TP28 | VDD_IN_1V | 1.2 V regulator output | 1.5 mm | Top |
| TP29 | SUPPLY_1V8 | nPM1100 1.8 V output | 1.5 mm | Top |
| TP30 | SUPPLY_3V3 | 3.3 V regulator output | 1.5 mm | Top |
| TP31 | VDD_DBG_3V3 | Debug regulator 3.3 V output | 1.5 mm | Top |
| TP32 | VDD_DBG_1V8 | Debug regulator 1.8 V output | 1.5 mm | Top |
| TP33 | SW_EN | Load switch enable signal | 1.5 mm | Top |
| TP34 | GND | Ground | 1.5 mm | Top |
| TP35 | GND | Ground | 1.5 mm | Top |
| TP36 | NetQ9-1 | Debug enable signal | 1.5 mm | Top |
| TP37 | IMCU_SWDIO | Interface MCU SWD data | 1.5 mm | Top |
| TP38 | IMCU_RESET | Interface MCU Reset | 1.5 mm | Top |
| TP39 | IMCU_SWDCLK | Interface MCU SWD clock | 1.5 mm | Top |
| TP40 | SHIELD_DETECT | Detect signal for Arduino compatible shield | 1.0 mm | Top |
| TP41 | HW_CODEC_IF.SPI.MISO | Serial Peripheral Interface (SPI) MISO pin of CS47L63 | 1.0 mm | Top |
| TP42 | HW_CODEC_IF.SPI.MOSI | SPI MOSI pin of CS47L63 | 1.0 mm | Top |
| TP43 | HW_CODEC_IF.SPI.SCK | SPI SCK pin of CS47L63 | 1.0 mm | Top |
| TP44 | HW_CODEC_IF.SPI.CS | SPI SS pin of CS47L63 | 1.0 mm | Top |
| TP45 | HW_CODEC_IF.CTRL.GPIO | General-Purpose Input/Output (GPIO) pin of CS47L63 | 1.0 mm | Top |
| TP46 | HW_CODEC_IF.CTRL.IRQ | IRQ pin of CS47L63 | 1.0 mm | Top |
| TP47 | HW_CODEC_IF.CTRL.RESET | RESET pin of CS47L63 | 1.0 mm | Top |
| TP48 | HW_CODEC_IF.I2S.MCLK | MCLK1 pin of CS47L63 | 1.0 mm | Top |
| TP49 | HW_CODEC_IF.I2S.DOUT | I2S DOUT pin of CS47L63 | 1.0 mm | Top |
| TP50 | HW_CODEC_IF.I2S.DIN | I2S DIN pin of CS47L63 | 1.0 mm | Top |
| TP51 | HW_CODEC_IF.I2S.BCLK | I2S BCLK pin of CS47L63 | 1.0 mm | Top |
| TP52 | HW_CODEC_IF.I2S.FSYNC | I2S FSYNC pin of CS47L63 | 1.0 mm | Top |
| TP53 | NetSB12-1 | MICBIASB pin of CS47L63 | 1.0 mm | Top |
| TP54 | NetSB13-1 | IN1_PDMDATA pin of CS47L63 | 1.0 mm | Top |
| TP55 | NetSB14-1 | IN1_PDMCLK pin of CS47L6 | 1.0 mm | Top |
| TP56 | PMIC_ERR | nPM1100 error indication | 1.0 mm | Top |
| TP57 | PMIC_CHG | nPM1100 charge indication | 1.0 mm | Top |
| TP58 | P0.29 | RGB LED 2 Green color input pin | 1.0 mm | Top |
| TP59 | P0.30 | RGB LED 2 Blue color input pin | 1.0 mm | Top |
| TP60 | P1.04 | UART1 RXD | 1.0 mm | Top |
| TP61 | P1.05 | UART1 TXD | 1.0 mm | Top |
| TP62 | P1.06 | UART1 CTS | 1.0 mm | Top |
| TP63 | P1.07 | UART1 RTS | 1.0 mm | Top |
| TP64 | NetJ5-10 | SD card slot card detect | 1.0 mm | Top |
| TP65 | P0.11 | SD card slot level translator enable | 1.0 mm | Top |
| TP66 | P1.15 | Current shunt monitor alert signal | 1.0 mm | Top |
| TP67 | GND | Ground | 1.5 mm | Top |
| TP68 | LINE_IN.LEFT | Line-in jack tip | 1.5 mm | Top |
| TP69 | LINE_IN.RIGHT | Line-in jack ring | 1.5 mm | Top |