The IOB attribute controls if a register must go into the I/O buffer. The values
are TRUE or FALSE. Place
this attribute on the register that you want in the I/O buffer. You can set this
attribute only in the RTL.
The IOB attribute controls if a register must go into the I/O buffer. The values
are TRUE or FALSE. Place
this attribute on the register that you want in the I/O buffer. You can set this
attribute only in the RTL.