Hardware Reference Manual
Version 1.0
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eInfochips Confidential
6.3.19
Low Speed Expansion Connector
Multiple BLSP signals brought from SDA660 to 20 pin male header (J6). User can use this signals to
connect more peripherals.
J6 Pin Specification are given in below table.
Figure 31 – SBC Low Speed Expansion Header (J6)
Pin Specification of J6 mentioned below,
Pin Number
Net Name
J6.1
VCC_1V8
1.8V Supply
J6.2
5V_USB_IN
5V Supply
J6.3
GND
GND
J6.4
GND
GND
J6.5
BLSP_SPI_CLK_3
BLSP_SPI_Clock
J6.6
BLSP_SPI_CS_N_3
BLSP_SPI_CS_3
J6.7
BLSP_SPI_MOSI_3
BLSP_SPI_MOSI
J6.8
BLSP_SPI_MISO_3
BLSP_SPI_MISO
J6.9
BLSP_I2C_SCL_6
BLSP_I2C_SCL_6
J6.10
BLSP1_SPI_CS_N_EXP
BLSP1_SPI_CS_N_EXP
J6.11
BLSP_I2C_SDA_6
BLSP_I2C_SDA_6
J6.12
BLSP1_SPI_MISO_EXP
BLSP1_SPI_MISO_EXP
J6.13
BLSP1_SPI_CLK_EXP
BLSP1_SPI_CLK_EXP
J6.14
BLSP_UART_TX_5
BLSP_UART_TX_5
J6.15
BLSP1_SPI_MOSI_EXP
BLSP1_SPI_MOSI_EXP
J6.16
BLSP_UART_RX_5
BLSP_UART_RX_5
J6.17
LNBBCLK3
LNBBCLK3
J6.18
BLSP_UART_CTS_N_5
BLSP_UART_CTS_N_5
J6.19
GND
GND
J6.20
BLSP_UART_RFR_N_5
BLSP_UART_RFR_N_5
Table 29: SBC
Low Speed Expansion Header (20) Pinout
Note: SBCe of above interfaces are multiplexed with other peripherals also.
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