CC3100_15 Datasheet, PDF (23/44 Pages) Texas Instruments – CC3100 SimpleLink Wi-Fi Network Processor, Internet-of-Things Solution for MCU Applications

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CC3100 (slave)
CC3100
SWAS031D – JUNE 2013 – REVISED FEBRUARY 2015
MCU
HOST_SPI_CLK
HOST_SPI_nCS
HOST_SPI_MISO
HOST_SPI_MOSI
HOST_INTR
nHIB
SPI_CLK
SPI_nCS
SPI_MISO
SPI_MOSI
INTR
GPIO
Figure 4-16. SPI Host Interface
SWAS031-027
Table 4-13 lists the SPI host interface pins.
Pin Name
HOST_SPI_CLK
HOST_SPI_nCS
HOST_SPI_MOSI
HOST_INTR
HOST_SPI_MISO
nHIB
Table 4-13. SPI Host Interface
Description
Clock (up to 20 MHz) from MCU host to CC3100 device
CS (active low) signal from MCU host to CC3100 device
Data from MCU host to CC3100 device
Interrupt from CC3100 device to MCU host
Data from CC3100 device to MCU host
Active-low signal that commands the CC3100 device to enter hibernate mode (lowest power
state)
4.13 Host UART
The SimpleLink device requires the UART configuration described in Table 4-14.
Table 4-14. SimpleLink UART Configuration
Property
Supported CC3100 Configuration
Baud rate
115200 bps, no auto-baud rate detection, can be changed by the host up to 3 Mbps using a special command
Data bits
8 bits
Flow control
CTS/RTS
Parity
None
Stop bits
1
Bit order
LSBit first
Host interrupt polarity
Active high
Host interrupt mode
Endianness
Rising edge or level 1
Little-endian only⁽¹⁾
(1) The SimpleLink device does not support automatic detection of the host length while using the UART interface.
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Specifications
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