The following module is defined in XBD:
ATTRIBUTE INSTANCE = clk_1
ATTRIBUTE IOTYPE = XIL_CLOCK_V1
PARAMETER CLK_FREQ = 3686400, IO_IS = clk_freq
This module is converted to the following in the MHS file after creating new project using the wizard:
PORT sys_clk_pin = dcm_clk_s, DIR = I, SIGIS = CLK, CLK_FREQ = 3690000
CLK_FREQ is converted from 3686400 to 3690000.
To work around this issue, you should manually edit the MHS file. This issue will be fixed in EDK 9.1i, scheduled for 2007.