TX28

PIN

Type

Function

i.MX28 Pad Name

Alternate functions

GPIO

Description (refer to i.MX28 manuals for details)

Synchronous Serial Port 2 instead of the standard CMOS Sensor Interface

103

3V3

SSP0_DATA4

SSP2_D0

GPIO2_4

104

3V3

SSP1_SCK

SSP2_D1

ENET0_1588_EVENT2_O

GPIO2_12

105

3V3

SSP1_CMD

SSP2_D2

ENET0_1588_EVENT2_IN

GPIO2_13

106

3V3

SSP2_SS0

AUART3_TX

SAIF1_SDATA2

GPIO2_19

107

3V3

SSP2_SS1

SSP2_D1

USB1_OVERCURRENT

GPIO2_20

108

3V3

SSP2_SS2

SSP2_D2

USB0_OVERCURRENT

GPIO2_21

109

3V3

SSP1_DATA0

SSP2_D6

ENET0_1588_EVENT3_O

GPIO2_14

110

3V3

SSP1_DATA3

SSP2_D7

ENET0_1588_EVENT3_IN

GPIO2_15

111

GND

GND

112

3V3

SSP2_MISO

AUART3_RX

SAIF1_SDATA1

GPIO2_18

113

3V3

SSP2_MOSI

AUART2_TX

SAIF0_SDATA2

GPIO2_17

114

3V3

SSP2_SCK

AUART2_RX

SAIF0_SDATA1

GPIO2_16

115

3V3

PWM1

I2C1_SDA

DUART_TX

GPIO3_17

116

GND

GND

LCD Controller and Smart LCD Controller

117

3V3

LD0

LCD_D00

ETM_DA0

GPIO1_0

57K-PD

Boot mode selection at startup: BM0 (47K-PU if BOOTMODE=L)

LCD Data Bus

118

3V3

LD1

LCD_D01

ETM_DA1

GPIO1_1

47K-PD

Boot mode selection at startup: BM1

LCD Data Bus

119

3V3

LD2

LCD_D02

ETM_DA2

GPIO1_2

57K-PU

Boot mode selection at startup: BM2 (10K-PD if BOOTMODE=L)

LCD Data Bus

120

3V3

LD3

LCD_D03

ETM_DA3

ETM_DA8

GPIO1_3

57K-PD

Boot mode selection at startup: BM3 (47K-PU if BOOTMODE=L)

LCD Data Bus

121

3V3

LD4

LCD_D04

ETM_DA4

ETM_DA9

GPIO1_4

47K-PD

Boot mode selection at startup: VOLTAGE SELECTOR

LCD Data Bus

122

3V3

LD5

LCD_D05

ETM_DA5

GPIO1_5

47K-PD

Boot mode selection at startup: ETM ENABLE

LCD Data Bus

123

3V3

LD6

LCD_D06

ETM_DA6

GPIO1_6

LCD Data Bus

124

3V3

LD7

LCD_D07

ETM_DA7

GPIO1_7

LCD Data Bus

125

3V3

LD8

LCD_D08

ETM_DA8

ETM_DA3

GPIO1_8

LCD Data Bus

126

3V3

LD9

LCD_D09

ETM_DA9

ETM_DA4

GPIO1_9

LCD Data Bus

127

3V3

LD10

LCD_D10

ETM_DA10

GPIO1_10 LCD Data Bus

128

3V3

LD11

LCD_D11

ETM_DA11

GPIO1_11 LCD Data Bus

129

GND

GND

130

3V3

LD12

LCD_D12

ETM_DA12

GPIO1_12 LCD Data Bus

131

3V3

LD13

LCD_D13

ETM_DA13

GPIO1_13 LCD Data Bus

132

3V3

LD14

LCD_D14

ETM_DA14

GPIO1_14 LCD Data Bus

133

3V3

LD15

LCD_D15

ETM_DA15

GPIO1_15 LCD Data Bus

134

3V3

LD16

LCD_D16

ETM_DA7

GPIO1_16 LCD Data Bus

135

3V3

LD17

LCD_D17

ETM_DA6

GPIO1_17 LCD Data Bus

136

3V3

LD18

LCD_D18

ETM_DA5

GPIO1_18 LCD Data Bus

137

3V3

LD19

LCD_D19

ETM_DA4

GPIO1_19 LCD Data Bus

138

3V3

LD20

LCD_D20

ENET1_1588_EVENT2_O

ETM_DA3

GPIO1_20 LCD Data Bus

139

3V3

LD21

LCD_D21

ENET1_1588_EVENT2_IN

ETM_DA2

GPIO1_21 LCD Data Bus

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www.karo-electronics.de