Datasheet

20
J18 Pin MCU Pin RDK Function (MCU Port) J18 Pin MCU Pin RDK Function (MCU Port)
64 64 Infrared Output (P140) 63 63 Ambient Light Sensor INT (P141)
62 62 PMOD PIN10 (P00) 61 61 Audio Generator PWM (P01)
60 60 SPI Bus MOSI (P02) 59 59 SPI Bus MISO (P03)
58 58 SPI Bus SCK (P04) 57 57 Peripheral Reset (P130)
56 56 Not Used (P20) 55 55 Not Used (P21)
54 54 Not Used (P22) 53 53 Not Used (P23)
52 52 POT Input (P24) 51 51 MIC Input (P25)
50 50 Audio Loopback Input (P26) 49 49 Audio Filter Input (P27)
48 48 WIFI GPIO26 (P147) 47 47 WIFI GPIO25 (P146)
46 46 LCD SPI CS (P10) 45 45 RS-232 UART RXD (P11)
44 44 RS-232 UART TXD (P12) 43 43 WIFI UART TXD (P13)
42 42 WIFI UART RXD (P14) 41 41 LCD Reg. Select (P15)
40 40 Right Audio Output (P16) 39 39 Left Audio Output (P17)
38 38 LED1 (P55) 37 37 LED6 (P54)
36 36 LED5 (P53) 35 35 LED4 (P52)
34 34 User Switch 3 (P51) 33 33 User Switch 2 (P50)
Table 9-3: J18 Expansion Header