TS-4900 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.

CPU PAD [1] GPIO Number Common Functions [2] Location
SD4_DAT1 41 LCD_PWM[3], #GPIO CN1_57
KEY_COL2 106 CAN_1_TXD, #GPIO CN2_97
KEY_ROW2 107 CAN_1_RXD, #GPIO CN2_99
KEY_COL0 102 UART4_TXD CN2_86, #FPGA Muxed
KEY_ROW0 103 UART4_RXD CN2_88, #FPGA Muxed
KEY_COL1 104 UART5_TXD CN2_90
KEY_ROW1 105 UART5_RXD CN2_92
KEY_COL3 108 I2C_2_CLK CN2_28
KEY_ROW3 109 I2C_2_DAT CN2_30
KEY_COL4 110 CAN_2_TXD, #GPIO CN1_71
KEY_ROW4 111 CAN_2_RXD, #GPIO CN1_69
GPIO_0 0 AUD_MCLK CN2_54
GPIO_1 1 USB_OTG_ID CN2_74
GPIO_2 2 Red LED Onboard
CSI0_DAT17 [4] 163 #GPIO CN2_56
SD4_DAT7 [5] 47 #GPIO CN2_58
GPIO_7 7 UART2_TXD CN2_78, #FPGA Muxed
GPIO_8 8 UART2_RXD CN2_80, #FPGA Muxed
SD3_RST [6] 200 #GPIO CN2_60
GPIO_16 203 #GPIO CN2_62
GPIO_17 204 #GPIO CN2_64
GPIO_19 101 #GPIO CN2_68
CSI0_MCLK 147 #GPIO CN2_70
CSI0_PIXCLK 146 #GPIO CN2_72
CSI0_DAT4 150 AUD_CLK, #GPIO CN2_36
CSI0_DAT5 151 AUD_TXD, #GPIO CN2_40
CSI0_DAT6 152 AUD_FRM, #GPIO CN2_38
CSI0_DAT7 153 AUD_RXD, #GPIO CN2_42
CSI0_DAT8 154 SPI_2_CLK CN2_71
CSI0_DAT9 155 SPI_2_MOSI CN2_67
CSI0_DAT10 156 SPI_2_MISO CN2_69
CSI0_DAT11 157 SPI_2_CS# CN2_65
CSI0_DAT12 158 #GPIO CN2_52
CSI0_DAT13 159 #GPIO CN2_66
DI0_DISP_CLK 112 LCD_CLK, #GPIO CN1_49
DI0_PIN2 114 LCD_HSYNC, #GPIO CN1_51
DI0_PIN3 115 LCD_VSYNC, #GPIO CN1_53
DI0_PIN15 113 LCD_DE, #GPIO CN1_55
DISP0_DAT0 117 LCD_D00, #GPIO CN1_24
DISP0_DAT1 118 LCD_D01, #GPIO CN1_26
DISP0_DAT2 119 LCD_D02, #GPIO CN1_28
DISP0_DAT3 120 LCD_D03, #GPIO CN1_30
DISP0_DAT4 121 LCD_D04, #GPIO CN1_32
DISP0_DAT5 122 LCD_D05, #GPIO CN1_34
DISP0_DAT6 123 LCD_D06, #GPIO CN1_38
DISP0_DAT7 124 LCD_D07, #GPIO CN1_40
DISP0_DAT8 125 LCD_D08, #GPIO CN1_19
DISP0_DAT9 126 LCD_D09, #GPIO CN1_21
DISP0_DAT10 127 LCD_D10, #GPIO CN1_23
DISP0_DAT11 133 LCD_D11, #GPIO CN1_25
DISP0_DAT12 134 LCD_D12, #GPIO CN1_27
DISP0_DAT13 135 LCD_D13, #GPIO CN1_31
DISP0_DAT14 136 LCD_D14, #GPIO CN1_33
DISP0_DAT15 137 LCD_D15, #GPIO CN1_35
DISP0_DAT16 138 LCD_D16, #GPIO CN1_37
DISP0_DAT17 139 LCD_D17, #GPIO CN1_39
DISP0_DAT18 140 LCD_D18, #GPIO CN1_41
DISP0_DAT19 141 LCD_D19, #GPIO CN1_43
DISP0_DAT20 142 LCD_D20, #GPIO CN1_45
DISP0_DAT21 143 LCD_D21, #GPIO CN1_42
DISP0_DAT22 144 LCD_D22, #GPIO CN1_44
DISP0_DAT23 145 LCD_D23, #GPIO CN1_46
EIM_LBA 59 #GPIO, BUS_ALE# CN1_96
EIM_OE 57 #GPIO [7] CN1_83
EIM_RW 58 #GPIO,BUS_DIR CN1_98
EIM_CS0 55 #GPIO, BUS_CS# CN1_100
EIM_CS1 56 Green LED Onboard
EIM_A16 54 #GPIO EN_USB_5V [8] CN1_04
EIM_A17 53 #GPIO OFF_BD_RESET# [9] CN1_09
EIM_A18 52 #GPIO CN1_81
EIM_A19 51 #GPIO EN_LCD_3.3V [10] CN1_48
EIM_A20 50 #GPIO CN1_85
EIM_A21 49 #GPIO CN1_77
EIM_A22 48 #GPIO CN1_89
EIM_A23 166 #GPIO CN1_91
EIM_A24 132 #GPIO [7] CN1_93
EIM_D16 80 SPI_1_CLK CN1_60
EIM_D17 81 SPI_1_MISO CN1_56
EIM_D18 82 SPI_1_MOSI CN1_58
EIM_D19 83 SPI_1_CS# [11] Onboard
EIM_D21 85 I2C_1_CLK [12] Onboard
EIM_D28 92 I2C_1_DAT [12] Onboard
EIM_D24 88 UART3_TXD CN2_82
EIM_D25 89 UART3_RXD CN2_84
EIM_EB1 61 BUS_BHE#, #GPIO CN1_99
EIM_BCLK 191 #GPIO CN1_79
EIM_WAIT 128 BUS_WAIT#, #GPIO [7] CN1_97
EIM_D31 95 #GPIO CN1_65
EIM_DA0 64 MUX_AD_00, #GPIO CN1_94
EIM_DA1 65 MUX_AD_01, #GPIO CN1_92
EIM_DA2 66 MUX_AD_02, #GPIO CN1_90
EIM_DA3 67 MUX_AD_03, #GPIO CN1_88
EIM_DA4 68 MUX_AD_04, #GPIO CN1_86
EIM_DA5 69 MUX_AD_05, #GPIO CN1_84
EIM_DA6 70 MUX_AD_06, #GPIO CN1_82
EIM_DA7 71 MUX_AD_07, #GPIO CN1_80
EIM_DA8 72 MUX_AD_08, #GPIO CN1_78
EIM_DA9 73 MUX_AD_09, #GPIO CN1_76
EIM_DA10 74 MUX_AD_10, #GPIO CN1_74
EIM_DA11 75 MUX_AD_11, #GPIO CN1_72
EIM_DA12 76 MUX_AD_12, #GPIO CN1_70
EIM_DA13 77 MUX_AD_13, #GPIO CN1_68
EIM_DA14 78 MUX_AD_14, #GPIO CN1_66
EIM_DA15 79 MUX_AD_15, #GPIO CN1_64
  1. ↑ 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.
  2. ↑ 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.
  3. ↑ This pin is used to tune the LCD backlight through the PWM controller. On our baseboards where there is an LCD present this is connected to provide a sysfs tunable backlight. On other baseboards this is usable as a GPIO.
  4. ↑ This pin changed during the sampling program for the REV C boards. On rev A this was linux gpio #5, or pad "GPIO_5".
  5. ↑ This pin changed during the sampling program for the REV C boards. On rev A this was linux gpio #6, or pad "GPIO_6"
  6. ↑ This pin changed during the sampling program for the REV C boards. On rev A this was linux gpio #9, or pad "GPIO_9"
  7. ↑ 7.0 7.1 7.2 This GPIO stays LOW when power is applied and defaults to a low state until modified by software
  8. ↑ On our off the shelf baseboards this pin typically controls the 5V rail for USB peripherals. For custom designs this can optionally be connected to a FET to control USB peripherals power.
  9. ↑ This pin is dedicated to resetting offboard peripherals during a full reboot.
  10. ↑ On our off the shelf baseboards this is normally used to toggle power to the LCD if the baseboard uses an LCD.
  11. ↑ Used for onboard flash
  12. ↑ 12.0 12.1 Used for communication with RTC and FPGA

FPGA GPIO

The FPGA GPIO can also be accessed through the sysfs API. These are available at GPIOs 224 to 255. Not all of the reserved pins are used on this design, but they will be reserved by the kernel.

FPGA PAD GPIO Number
CN1_63 224
CN1_67 225
CN1_87 226
CN1_64/MUX_AD_15 [1] 227
CN2_54 [1] 228
CN2_78 229
CN2_80 230
CN2_86 231
CN2_88 232
CN2_94 233
CN2_96 234
CN2_98 235
CN2_100 236
CN1_73/PUSH_SW 255
  1. ↑ 1.0 1.1 This pin is not an FPGA pin on PCB revisions after A
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