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SPI_CLK: Clock (O)
SPI_SEL_1: Select 1 (O)
SPI_SEL_2: Select 2 (O)
SPI_SEL_3: Select 3 (O)
SPI_SEL_4: Select 4 (O)
Universal Serial Bus (USB) Port:
Usage: Facilitate the transfer of data files to/from the CPU by using USB memory devices as an
alternative to laptop computer.
Location: One USB connector at Front plate.
Requirements: Hardware and Software conforms to v2.0 USB devices to be used are formatted as
FAT16 file system providing a 2GB storage.
Interface pins:
USB_D+: Data Line Positive (I/O)
USB_D-: Data Line Negative (I/O)
USB_POWER_SWITCH Power Switch (O)
USB_OVERCURRENT Over-current (I)
Ethernet Interface (ENET):
Usage: Local and Network Communications.
Location: Three 10/100BASE-T Ethernet ports on Front plate, ENET1 (2) and ENET2 (1). Four
10/100BASE-T Ethernet ports on the Host board thru 12 pins headers.
Operating modes: Synchronous, Manchester-encoded, and Differential.
Sync rates (bps): 10M, 100M.
Interface pins:
ENET1_TX_POS: Port 1 Transmit Data Positive (O)
ENET1_TX_NEG: Port 1 Transmit Data Negative (O)
ENET1_RX_POS: Port 1 Receive Data Positive (I)
ENET1_RX_NEG: Port 1 Receive Data Negative (I)
ENET2_TX_POS: Port 2 Transmit Data Positive (O)
ENET2_TX_NEG: Port 2 Transmit Data Negative (O)
ENET2_RX_POS: Port 2 Receive Data Positive (I)
ENET2_RX_NEG: Port 2 Receive Data Negative (I)
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