WE866E4-P Module Hardware User Guide
1VV0301487 Rev. 1.2 13 2018-07-27
PRELIMINAR
Y
Chapter 3 Pin Allocation
• Pins Out, page 13
• A Pad Layout, page 16
3.1 Pins Out
Table 2, page 13 describes the WE866E4-P module pin signal description.
Table 2 WE866E4-P Module Pin Signal Description
Pins Name Input/Output Function Type Comments
USB HS 2.0 COMMUNICATION PORT
E5 USB_D+ Input/Output USB differential Data+
E6 USB_D- Input/Output USB differential Data -
E4 VUSB Input Power sense for USB
High Speed Asynchronous Serial Port (USIF0)
A4 UART0_TXD Output Serial data output
CMOS VIO
A5 UART0_RXD Input Serial data input CMOS VIO
B4 UART0_RTS Output Output CMOS VIO
B3 UART0_CTS Input Input CMOS VIO
Low Speed Asynchronous Serial Port (USIF0)
C3 UART1_RXD Input Serial data input CMOS VIO
C4 UART1_TXD Output Serial data input CMOS VIO
Serial Peripheral Interface (SPI) CMOS VIO
A3 SPI_MISO Input Pull-down (see Note 1) CMOS VIO Master
B2 SPI_MOSI Output Pull-down (see Note 1) CMOS VIO Master
A2 SPI_CLK Output Pull-down (see Note 1) CMOS VIO Master
D9 SPI_CS Output Pull-down CMOS VIO Master
Secure Digital Input Output (SDIO)
A6 SDIO_D2 Input/Output DATA2 CMOS VIO
B6 SDIO_D1 Input/Output DATA1 CMOS VIO
B7 SDIO_D3 Input/Output DATA3 CMOS VIO
C7 SDIO_D0 Input/Output DATA0 CMOS VIO
D7 SDIO_CLK Input/Output Clock CMOS VIO
E7 SDIO_CMD Input/Output Command CMOS VIO
Inter - Integrated Circuit Interface
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