TS-4100 CPU DIO Table
From embeddedTS Manuals
The GPIO numbers in the table below are relevant to how the Linux references these numbers. The CPU documentation refers to bank and IO while Linux flattens this out to one number space.
| Schematic Name | CPU PAD [1] | GPIO Number | Common Functions [2] | Location |
|---|---|---|---|---|
| CONSOLE_RXD | UART1_RX_DATA | 17 | Console uart | CN2_095 / Silabs |
| CONSOLE_TXD | UART1_TX_DATA | 16 | Console uart | CN2_093 / Silabs |
| SPARE_1 | UART1_CTS_B | 18 | GPIO | FPGA Crossbar (Default NC) |
| SPARE_2 | UART1_RTS_B | 19 | GPIO | FPGA Crossbar (Default NC) |
| UART2_RXD | UART2_RX_DATA | 21 | #COM_Ports | CN2_084 |
| UART2_TXD | UART2_TX_DATA | 20 | #COM_Ports | CN2_082 |
| CAN_2_TXD | UART2_CTS_B | 22 | #CAN | CN1_071 |
| CAN_2_RXD | UART2_RTS_B | 23 | #CAN | CN1_069 |
| UART3_RXD | UART3_RX_DATA | 25 | #COM_Ports | FPGA Crossbar (Default Bluetooth RX) |
| UART3_TXD | UART3_TX_DATA | 24 | #COM_Ports | FPGA Crossbar (Default Bluetooth TX) |
| UART3_CTS# | UART3_CTS_B | 26 | #COM_Ports | FPGA Crossbar (Default Bluetooth CTS) |
| UART3_RTS# | UART3_RTS_B | 27 | #COM_Ports | FPGA Crossbar (Default Bluetooth RTS) |
| UART4_RXD | UART4_RX_DATA | 29 | #COM_Ports | FPGA Crossbar (Default CN2_080) |
| UART4_TXD | UART4_TX_DATA | 28 | #COM_Ports | FPGA Crossbar (Default CN2_078) |
| UART5_RXD | UART5_RX_DATA | 31 | #COM_Ports | CN2_092 |
| UART5_TXD | UART5_TX_DATA | 30 | #COM_Ports | CN2_090 |
| AUD_RXD | JTAG_TCK | 14 | #I2S / #JTAG | CN2_042 |
| AUD_CLK | JTAG_TDI | 13 | #I2S / #JTAG | CN2_036 |
| AUD_FRM | JTAG_TDO | 12 | #I2S / #JTAG | CN2_038 |
| AUD_MCLK | JTAG_TMS | 11 | #I2S / #JTAG | CN2_054 |
| AUD_TXD | JTAG_TRST_B | 15 | #I2S / #JTAG | CN2_040 |
| EN_ETH_PHY_PWR | JTAG_MOD | 10 | Eth PHY enable / #JTAG | CN2_046 |
| CAM_D_0 | CSI_DATA00 | 117 | #Camera Interface / GPIO | CN2_052 |
| CAM_D_1 | CSI_DATA01 | 118 | #Camera Interface / GPIO | CN2_056 |
| CAM_D_2 | CSI_DATA02 | 119 | #Camera Interface / GPIO | CN2_058 |
| CAM_D_3 | CSI_DATA03 | 120 | #Camera Interface / GPIO | CN2_060 |
| CAM_D_4 | CSI_DATA04 | 121 | #Camera Interface / GPIO | CN2_062 |
| CAM_D_5 | CSI_DATA05 | 122 | #Camera Interface / GPIO | CN2_064 |
| CAM_D_6 | CSI_DATA06 | 123 | #Camera Interface / GPIO | CN2_066 |
| CAM_D_7 | CSI_DATA07 | 124 | #Camera Interface / GPIO | CN2_068 |
| CAM_HSYNC | CSI_HSYNC | 116 | #Camera Interface / GPIO | CN2_070 |
| CAM_MCLK | CSI_MCLK | 113 | #Camera Interface / GPIO | CN2_034 |
| CAM_PIX_CLK | CSI_PIXCLK | 114 | #Camera Interface / GPIO | CN2_032 |
| CAM_VSYNC | CSI_VSYNC | 115 | #Camera Interface / GPIO | CN2_072 |
| USB_OTG1_ID | GPIO1_IO00 | 0 | USB1 OTG ID | CN2_074 / USB_OTG_5V power switch |
| GPIO_1_ADC | GPIO1_IO01 | 1 | #ADC / GPIO | CN2_012 |
| I2C_1_CLK | GPIO1_IO02 | 2 | #I2C | Onboard Silabs |
| I2C_1_DAT | GPIO1_IO03 | 3 | #I2C | Onboard Silabs |
| EN_OTG1_5V | GPIO1_IO04 | 4 | USB OTG switch 5V [3] | Onboard Regulator |
| SD_VSEL_1.8V | GPIO1_IO05 | 5 | SD 1.8V switch [4] | Onboard Regulator |
| ETH_MDIO | GPIO1_IO06 | 6 | Onboard Ethernet MDIO | Onboard PHYs |
| ETH_MDC | GPIO1_IO07 | 7 | Onboard Ethernet MDIO | Onboard PHYs |
| LCD_PWM_ADC8 | GPIO1_IO08 | 8 | #PWM, #ADC, GPIO | CN1_057 |
| GPIO_9_ADC | GPIO1_IO09 | 9 | #ADC, GPIO | CN2_091 |
| POWER_FAIL | SNVS_TAMPER0 | 128 | Power Notification [5] | Onboard PWR Monitor |
| FPGA_IRQ | SNVS_TAMPER1 | 129 | #FPGA | FPGA Crossbar (Default NC) |
| EN_FPGA_PWR | SNVS_TAMPER2 | 130 | FPGA 3.3V switch | Onboard FET |
| GPIO_DVFS | SNVS_TAMPER3 | 131 | CPU DVFS [6] | Onboard Regulator |
| JTAG_FPGA_TDO | SNVS_TAMPER4 | 132 | FPGA JTAG | FPGA JTAG pin |
| JTAG_FPGA_TDI | SNVS_TAMPER5 | 133 | FPGA JTAG | FPGA JTAG pin |
| JTAG_FPGA_TMS | SNVS_TAMPER6 | 134 | FPGA JTAG | FPGA JTAG pin |
| JTAG_FPGA_TCK | SNVS_TAMPER7 | 135 | FPGA JTAG | FPGA JTAG pin |
| SPARE_4 | SNVS_TAMPER8 | 136 | GPIO | FPGA Crossbar (Default WIFI IRQ) |
| EN_SD_POWER | SNVS_TAMPER9 | 137 | SD power enable | Onboard Regulator |
| I2C_3_DAT | LCD_DATA00 | 69 | #I2C [7] | CN2_030 |
| I2C_3_CLK | LCD_DATA01 | 70 | #I2C [7] | CN2_028 |
- ↑ The pad name does not often correspond with the functionality of the IO we use, but can be used to reference the pad in the CPU manual.
- ↑ This does not contain all of the functions possible for a pin, but the common functions as they are used on our off the shelf basebords. Consult the i.MX6 CPU Reference manual for a complete list.
- ↑ TODO
- ↑ This is handled automatically by the kernel after negotiating the capabilities of the connected card. Switching to 1.8V on a 3.3V card can cause damage.
- ↑ This will assert high when power is disconnected and the system and the board is running off supercaps if populated.
- ↑ Under almost all cases this should be maintained by the kernel
- ↑ 7.0 7.1 This i2c bus is used to access all of the FPGA GPIO and typically should not be repurposed as GPIO.