A20-OLinuXino-Lime2, board revision H - GPIO layout

Please double check the orientation of the connectors and the starting pin. Pin numbers 1 & 2 are printed on near the connector.

Signals with (NC) in the name are routed to the corresponding processor pin but are disconnected by default.

Some signals are controlled by SMT jumppers. For example, PC3/SATA-PWR-EN and PB8/SATA-PWR-EN. By default PC3/PB8 is in position PC3.

LCD_CON

LIME2 LCD_CON rows of pins are swapped compared to those of LIME LCD_CON

A20 PIN FUNCTIONS SIGNAL # NAME # # SIGNAL # NAME A20 PIN FUNCTIONS

- 5V 1 o o 2 GND -

- 3.3V 3 o o 4 GND -

LCD0_D16/LVDS1_VPC/PD16 LCD_D16 5 o o 6 LCD_D17 LCD0_D17/LVDS1_VNC/PD17

LCD0_D18/LVDS1_VP3/PD18 LCD_D18 7 o o 8 LCD_D19 LCD0_D19/LVDS1_VN3/PD19

LCD0_D20/CSI 1_MCLK/PD20 LCD_D20 9 o o 10 LCD_D21 LCD0_D21/SMC_VPPEN/PD21

LCD0_D22/SMC_VPPPP/PD22 LCD_D22 11 o o 12 LCD_D23 LCD0_D23/SMC_DET/PD23

LCD0_D8/LVDS0_VP3/PD8 LCD_D8 13 o o 14 LCD_D9 LCD0_D9/LVDS0_VN3/PD9

LCD0_D10/LVDS1_VP0/PD10 LCD_D10 15 o o 16 LCD_D11 LCD0_D11/LVDS1_VN0/PD11

PD12 LCD_D12 17 o o 18 LCD_D13 LCD0_D13/LVDS1_VN1/PD13

PD14 LCD_D14 19 o o 20 LCD_D15 LCD0_D15/LVDS1_VN2/PD15

PD0 LCD_D0 21 o o 22 LCD_D1 LCD0_D1/LVDS0_VN0/PD1

PD2 LCD_D2 23 o o 24 LCD_D3 LCD0_D3/LVDS0_VN1/PD3

PD4 LCD_D4 25 o o 26 LCD_D5 LCD0_D5/LVDS0_VN2/PD5

PD6 LCD_D6 27 o o 28 LCD_D7 LCD0_D7/LVDS0_VNC/PD7

PD26 LCD_HSYNC 29 o o 30 LCD_VSYNC LCD0_VSYNC/SMC_SDA/PD27

PD24 LCD_CLK 31 o o 32 LCD_DE LCD0_DE/SMC_RST/PD25

IR0_TX/SPDI F_MCLK/STANBYWFI/PB3 PB3 (NC) 33 o o 34 PB4 (NC) R0_RX/PB4

LCD1_D8/ATAD4/KP_IN0/MS_D0/EINT8/CSI1_D8/PH8 LCD_PWR 35 o o 36 PB2/PWM0 PWM0/PB2

Y22 (default) or PH10 INT/X1 37 o o 38 RES/X2 AA22 (default) or PH11

Y23 (default) or PB20 SCL/Y1 39 o o 40 SDA/Y2 AA23 (default) or PB21

GPIO_1

A20 PIN FUNCTIONS SIGNAL # NAME # # SIGNAL # NAME A20 PIN FUNCTIONS

- 5V 1 o o 2 GND -

- 3.3V 3 o o 4 AGND -

TS1_CLK/CSI1_PCLK/SDC1_CMD/PG0 PG0 5 o o 6 LRADC0 LRADC0

TS1_ERR/CSI1_MLCK/SDC1_CLK/PG1 PG1 7 o o 8 LRADC1 LRADC1

TS1_SYNC/CSI1_HSYNC/SDC1_D0/PG2 PG2 9 o o 10 MICIN1 MICIN1

TS1_DVLD/CSI1_VSYNC/SDC1_D1/PG3 PG3 11 o o 12 VMIC VMIC

TS1_D0/CSI1_D0/SDC1_D2/CSI0_D8/PG4 PG4 13 o o 14 HPOUTL HPOUTL

TS1_D1/CSI1_D1/SDC1_D3/CSI0_D9/PG5 PG5 15 o o 16 HPCOM HPCOM

TS1_D2/CSI1_D2/UART3_TX/CSI0_D10/PG6 PG6 17 o o 18 HPOUTR HPOUTR

TS1_D3/CSI1_D3/UART3_RX/CSI0_D11/PG7 PG7 19 o o 20 VGA-G TVOUT0/VGA-G

TS1_D4/CSI1_D4/UART3_RTS/CSI0_D12/PG8 PG8 21 o o 22 VGA-B TVOUT1/VGA-B

TS1_D5/CSI1_D5/UART3_CTS/CSI0_D13/PG9 PG9 23 o o 24 VGA-R TVOUT2/VGA-R

TS1_D6/CSI1_D6/UART4_TX/CSI0_D14/PG10 PG10 25 o o 26 UART0-RX UART0_TX/IR1_TX/PB22

TS1_D7/CSI1_D7/UART4_RX/CSI0_D15/PG11 PG11 27 o o 28 UART0-TX UART0_RX/IR1_RX/PB23

NCE1/PC3 or NC PC3/SATA-PWR-EN 29 o o 30 PB21 (pull-up) TWI2_SDA/PB21

NCE3/PC18 PC18 31 o o 32 PB20 (pull-up) TWI2_SCK/PB20

NCE4/SPI2_CS0/PC19 PC19 33 o o 34 PB19 (pull-up) TWI1_SDA/PB19

NCE5/SPI2_CLK/PC20 PC20 35 o o 36 PB18 (pull-up) TWI1_SCK/PB18

NCE6/SPI2_MOSI/PC21 PC21 37 o o 38 PC24 NDQS/PC24

NCE7/SPI2_MISO/PC22 PC22 39 o o 40 PC23 SPI0_CS0/PC23

GPIO_2

A20 PIN FUNCTIONS SIGNAL # NAME # # SIGNAL # NAME A20 PIN FUNCTIONS

- 5V 1 o o 2 GND -

- 3.3V 3 o o 4 LDO3-2.8V -

TWI0_SCK/PB0 TWI0-SCK 5 o o 6 PE0 TS0_CLK/CSI0_PCLK/PE0

TWI0_SDA/PB1 TWI0-SDA 7 o o 8 PE1 TS0_ERR/CSI0_MCLK/PE1

GPS_CLK/PI0 PI0 9 o o 10 PE2 TS0_SYNC/CSI0_HSYNC/PE2

GPS_SIGN/PI1 PI1 11 o o 12 PE3 TS0_DVLD/CSI0_VSYNC/PE3

GPS_MAG/PI2 PI2 13 o o 14 PE4 TS0_D0/CSI0_D0/PE4

PWM1/PI3 PI3 15 o o 16 PE5 TS0_D1/CSI0_D1/PE5

SDC3_CMD/PI4 PI4 17 o o 18 PE6 TS0_D2/CSI0_D2/PE6

SDC3_CLK/PI5 PI5 19 o o 20 PE7 TS0_D3/CSI0_D3/PE7

SDC3_D0/PI6 PI6 21 o o 22 PE8 TS0_D4/CSI0_D4/PE8

SDC3_D1/PI7 PI7 23 o o 24 PE9 TS0_D5/CSI0_D5/PE9

SDC3_D2/PI8 PI8 25 o o 26 PE10 TS0_D6/CSI0_D6/PE10

SDC3_D3/PI9 PI9 27 o o 28 PE11 TS0_D7/CSI0_D7/PE11

SPI0_CS0/UART5_TX/EINT22/PI10 PI10 29 o o 30 PI21 HSDA/UART7_RX/PS2_SDA0/PI21

SPI0_CLK/UART5_RX/EINT23/PI11 PI11 31 o o 32 PI20 HSCL/UART7_TX/PS2_SCK0/PI20

SPI0_MOSI/UART6_TX/EINT24/PI12 PI12 33 o o 34 PI19 EINT31/SPI1_MISO/UART2_RX/PI19

SPI0_MISO/UART6_RX/EINT25/PI13 PI13 35 o o 36 PI18 EINT30/SPI1_MOSI/UART2_TX/PI18

PS2_SCK1/TCLKIN0/EINT26/SPI0_CS1/PI14 PI14 37 o o 38 PI17 EINT29/SPI1_CLK/UART2_CTS/PI17

PS2_SDA1/TCLKIN1/EINT27/SPI1_CS1/PI15 PI15 39 o o 40 PI16 EINT28/SPI1_CS0/UART2_RTS/PI16

The pins indicating voltage values – either 5V or 3.3V – are outputs! Do not try to provide power at those pins (usually pins 1 and 3

Of each connector)!

''A20 PIN FUNCTIONS'' field has the pin names as per “A20 Datasheet V1.0”. For full details about the pin (multiplexing, usage, registers, etc)

please refer either to mentioned A20 datasheet or to the latest A20 user's manual. It is highly recommended to refer to source documentation

Released by Allwinner.

''A20 PIN FUNCTIONS'' marked with ''-'' indicate that the signal is related to the power supply circuit. Such signals are not directly connected to the microcontroller

and you should be careful when operating those signals. Improper use might lead to short-circuits.

GPIO_3

A20 PIN FUNCTIONS SIGNAL # NAME # # SIGNAL # NAME A20 PIN FUNCTIONS

- 5V 1 o o 2 GND -

- 3.3V 3 o o 4 PB3 IR0_TX/SPDIF_MCLK/STANBYWFI/PB3

RESET# RESET_N 5 o o 6 PB4 IR0_RX/PB4

LCD1_D0/ATAA0/UART3_TX/EINT0/CSI1_D0/PH0 PH0 7 o o 8 PB5 I2S_MCLK/AC97_MCLK/PB5

LCD1_D7/ATAD3/UART5_RX/MS_CLK/EINT7/CSI1_D7/PH7 GMAC_PWR_E/PH7 9 o o 10 PB6 I2S_BCLK/AC97_BCLK/PB6

LCD1_D9/ATAD5/KP_IN1/MS_D1/EINT9/CSI1_D9/PH9 PH9 11 o o 12 PB7 I2S_LRCK/AC97_SYNC/PB7

LCD1_D10/ATAD6/KP_IN2/MS_D2/EINT10/CSI1_D10/PH10 PH10 13 o o 14 PB8/SATA-PWR_EN NC or I2S_DO0/AC97_DO/PB8

LCD1_D11/ATAD7/KP_IN3/MS_D3/EINT11/CSI1_D11/PH11 PH11 15 o o 16 PB9 I2S_DO1/PB9

LCD1_D12/ATAD8/PS2_SCK1/EINT12/CSI1_D12/PH12 PH12 17 o o 18 PB10 I2S_DO2/PB10

LCD1_D13/ATAD9/PS2_SDA1/SMC_RST/EINT13/CSI1_D13/PH13 PH13 19 o o 20 PB11 I2S_DO3/PB11

LCD1_D14/ATAD10/KP_IN4/SMC_VPPEN/EINT14/CSI1_D14/PH14 PH14 21 o o 22 PB12 I2S_DI/AC97_DI/SPDIF_DI/PB12

LCD1_D15/ATAD1 1/KP_IN5/SMC_VPPPP/EINT15/CSI1_D15/PH15 PH15 23 o o 24 PB13 SPI2_CS1/SPDIF_DO/PB13

LCD1_D16/ATAD12/KP_IN6/SMC_DET/EINT16/CSI1_D16/PH16 PH16 25 o o 26 PB14 JTAG_MS0/SPI2_CS0/PB14

LCD1_D17/ATAD13/KP_IN7/SMC_VCCEN/EINT17/CSI1_D17/PH17 PH17 27 o o 28 PB15 JTAG_CK0/SPI2_CLK/PB15

LCD1_D18/ATAD14/KP_OUT0/SMC_SLK/EINT18/CSI1_D18/PH18 PH18 29 o o 30 PB16 JTAG_DO0/SPI2_MOSI/PB16

LCD1_D19/ATAD15/KP_OUT1/SMC_SDA/EINT19/CSI1_D19/PH19 PH19 31 o o 32 PB17 JTAG_DI0/SPI2_MISO/PB17

LCD1_D20/ATAOE/CAN_TX/EINT20/CSI1_D20/PH20 PH20 33 o o 34 PH24 LCD1_CLK/ATACS1/KP_OUT4/SDC1_D0/CSI1_PCLK/PH24

LCD1_D21/ATADREQ/CAN_RX/EINT21/CSI1_D21/PH21 PH21 35 o o 36 PH25 LCD1_DE/ATAIORDY/KP_OUT5/SDC1_D1/CSI1_FIELD/PH25

LCD1_D22/ATADACK/KP_OUT2/SDC1_CMD/CSI1_D22/PH22 PH22 37 o o 38 PH26 LCD1_HSYNC/ATAIOR/KP_OUT6/SDC1_D2/CSI1_HSYNC/PH26

LCD1_D23/ATACS0/KP_OUT3/SDC1_CLK/CSI1_D23/PH23 PH23 39 o o 40 PH27 LCD1_VSYNC/ATAIOW/KP_OUT7/SDC1_D3/CSI1_VSYNC/PH27

GPIO_4

A20 #PIN SIGNAL # NAME # # SIGNAL # NAME A20 #PIN

- 3.3V 1 o o 2 GND -

AB17 TVOUT3 3 o o 4 NMI_N F5

AC18 TVIN0 5 o o 6 MIC1OUTP AC22

AB18 TVIN1 7 o o 8 MIC1OUTN AC23

AA17 TVIN2 9 o o 10 MICIN2 AC21

Y17 TVIN3 11 o o 12 PA9 E9

AB21 LINEINR 13 o o 14 PA14 D12

AB20 LINEINL 15 o o 16 PC7/SDC2_CLK J22

Y21 FMINR 17 o o 18 PC16/NWP/SDC2_RST M21

Y20 FMINL 19 o o 20 PC17/USB0-DRV F23