XU4 Shifter Shield
Download Fritzing part for ODROID-XU4 Shifter Shield odroid-xu4-shiftershield.fzpz
TI recommends that this current be limited to values under 1 mA for the TXS0108E.
pulldown resistors must be avoided because of decreased VOH levels. If pulldown resistors are necessary
they must be limited to values of 50 kΩ or greater. The negative impact of pulldown resistors on VOH levels
also demonstrates why the TXS family of translators must only be used to drive high-impedance loads.
Many thanks to user qxtgo who shared this important information in our forum.
Click here for more details about pulldown/pullup resistors of shifter shield
GPIO Map for WiringPi Library
| Net Name | GPIO & Export No | WiringPi GPIO | Header Pin | Header Pin | WiringPi GPIO | GPIO & Export No | Net Name |
|---|---|---|---|---|---|---|---|
| 3.3V | 3.3V | 3.3V | 1 | 2 | 5.0V | 5.0V | 5.0V |
| I2C_1.SDA | GPB3.2(#209) | GPIO_08 | 3 | 4 | 5.0V | 5.0V | 5.0V |
| I2C_1.SCL | GPB3.3(#210) | GPIO_09 | 5 | 6 | GND | GND | GND |
| XE.INT10 | GPX1.2(#18) | GPIO_07 | 7 | 8 | GPIO_15(TXD) | GPA0.1(#172) | UART_0.TXD |
| GND | GND | GND | 9 | 10 | GPIO_16(RXD) | GPA0.0(#171) | UART_0.RXD |
| UART_0.RTS_N | GPA0.3(#174) | GPIO_00 | 11 | 12 | GPIO_01(PWM) | GPA0.2(#173) | UART_0.CTS_N |
| XE.INT13 | GPX1.5(#21) | GPIO_02 | 13 | 14 | GND | GND | GND |
| XE.INT14 | GPX1.6(#22) | GPIO_03 | 15 | 16 | GPIO_04 | GPX1.3(#19) | XE.INT11 |
| 3.3V | 3.3V | 3.3V | 17 | 18 | GPIO_05 | GPX1.7(#23) | XE.INT15 |
| SPI_1.MOSI | GPA2.7(#192) | GPIO_12 | 19 | 20 | GND | GND | GND |
| SPI_1.MISO | GPA2.6(#191) | GPIO_13 | 21 | 22 | GPIO_06 | GPX2.0(#24) | XE.INT16 |
| SPI_1.SCLK | GPA2.4(#189) | GPIO_14 | 23 | 24 | GPIO_10 | GPA2.5(#190) | SPI_1.CSN |
| GND | GND | GND | 25 | 26 | GPIO_11 | GPX2.1(#25) | XE.INT17 |
| I2C_5.SDA | GPA2.2(#187) | GPIO_30 | 27 | 28 | GPIO_31 | GPA2.3(#188) | I2C_5.SCL |
| XE.INT20 | GPX2.4(#28) | GPIO_21 | 29 | 30 | GND | GND | GND |
| XE.INT22 | GPX2.6(#30) | GPIO_22 | 31 | 32 | GPIO_26 | GPX2.5(#29) | XE.INT21 |
| XE.INT23 | GPX2.7(#31) | GPIO_23 | 33 | 34 | GND | GND | GND |
| PWR_ON(INPUT) | PWR_ON(INPUT) | GPIO_24 | 35 | 36 | GPIO_27 | GPX3.1(#33) | XE.INT25 |
| ADC_0.AIN0 | AIN0(Max 1,8V) | GPIO_25 | 37 | 38 | GPIO_28 | ADC REF OUT(1.8V) | ADC REF OUT |
| GND | GND | GND | 39 | 40 | GPIO_29 | AIN3(Max 1.8V) | ADC_0.AIN3 |
- Net Name I2C_1.SDA/I2C_1.SCL physical I2C Address : 0x12c70000
- Net Name I2C_5.SDA/I2C_5.SCL physical I2C Address : 0x12cb0000 (hsi2c)
- Net Name I2C_5.SDA/I2C_5.SCL are not available in XU3
neal