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7.
Expansion Connectors
The 96Board CE specification calls for one Low speed expansion connector and one High speed expansion connector.
7.1 Low Speed Expansion Connector
The low speed expansion connector brings GPIO and other low speed interfaces for the Expansion Board connection. The
connector is a dual row, low profile 2mm, 40 pin female receptacle J5 (9-1734516-0)
The following tables show the Low Speed Expansion Connector pin out:
Pin
No.
SD 600eval Signals
Pin
No.
SD 600eval Signals
1
GND
2
GND
3
LS_EXP_UART_1_CTS (APQ GPIO_20)
4
PWRBTN#
5
LS_EXP_UART_1_TX
(APQ GPIO_82)
6
RSTBTN#
7
LS_EXP_UART_1_RX (APQ GPIO_83)
8
LS_EXP_SPI_CLK
9
LS_EXP_UART_1_RFR (APQ GPIO_21)
10
LS_EXP_SPI_MISO
11
LS_DEBUG_UART_TX (APQ GPIO_18)
12
LS_EXP_SPI_CS_N
13
LS_DEBUG_UART_RX (APQ GPIO_19)
14
LS_EXP_SPI_MOSI
15
LS_EXP_I2C0_SCL (APQ GPIO_7)
16
LS_EXP_I2S_WS
17
LS_EXP_I2C0_SDA (APQ GPIO_6)
18
LS_EXP_I2S_SCLK
19
LS_EXP_I2C1_SCL (APQ GPIO_23)
20
LS_EXP_I2S_DOUT
21
LS_EXP_I2C1_SDA (APQ GPIO_22)
22
LS_EXP_I2S_DIN
23
LS_EXP_GPIO_A (APQ GPIO_35) (APQ INT)
24
LS_EXP_GPIO_B
25
LS_EXP_GPIO_C (APQ GPIO_55) (TS_INT_N)
26
LS_EXP_GPIO_D
27
LS_EXP_GPIO_E (APQ GPIO_29)
(GYRO_ACCL_INT_N)
28
LS_EXP_GPIO_F
29
LS_EXP_GPIO_G (APQ GPIO_0) (DSI_VSYNC)
30
LS_EXP_GPIO_H
31
LS_EXP_GPIO_I (APQ GPIO_28) (CSI0_RST)
32
LS_EXP_GPIO_J
33
LS_EXP_GPIO_K (APQ GPIO_34) (CSI1_RST)
34
LS_EXP_GPIO_L
35
LS_EXP_1P8
36
SYS_12V_DCIN
37
VCC_5V0
38
SYS_12V_DCIN
39
GND
40
GND
7.1.1 UART {0/1}
The 96Boards CE specification calls for a 4-wire UART implementation and an optional 2-wire UART on the Low Speed Expansion
Connector.
The SD 600eval board implements UART0 as a 4-wire UART that connects directly to the APQ8064 SoC. These signals are driven
at 1.8V.
UART1 is implemented as a 2-wire UART that connects directly to the APQ8064 SoC. These signals are driven at 1.8V.
7.1.2 I2C {0/1}
The 96Boards CE specification calls for two I2C interfaces to be implemented on the Low Speed Expansion Connector.
The SD 600eval board implements both interfaces, I2C0 and I2C1 that connects directly to the APQ8064 SoC. I2C lines are pulled
up with 2.2K resistor at 1.8V voltage level.
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