EXTERNAL PORTS
These are the external ports defined in the MHS file.
Attributes Key
The attributes are obtained from the SIGIS and IOB_STATE parameters set on the PORT in the MHS file
CLK  indicates Clock ports, (SIGIS = CLK) 
INTR  indicates Interrupt ports,(SIGIS = INTR) 
RESET  indicates Reset ports, (SIGIS = RST) 
BUF or REG  Indicates ports that instantiate or infer IOB primitives, (IOB_STATE = BUF or REG) 
# NAME DIR [LSB:MSB] SIG ATTRIBUTES
fpga_0_RS232_Uart_1_RX_pin I 1 fpga_0_RS232_Uart_1_RX
fpga_0_RS232_Uart_1_TX_pin O 1 fpga_0_RS232_Uart_1_TX
sys_clk_pin I 1 dcm_clk_s  CLK 
sys_rst_pin I 1 sys_rst_s  RESET 
PHY_RESET_0_pin O 1 PHY_RESET_0
GTP_READY_pin O 1 GTP_READY
REFCLK_P_IN_pin I 1 REFCLK_P_IN
REFCLK_N_IN_pin I 1 REFCLK_N_IN