小弟最近画廊块DM365的板子，看了一些IBIS方面的资料想简单的对DDR部分仿真，可是在DM365 IBIS的模型中有许多子模块选项，找了很久的资料也没不大明白这几个选项的意思，还请大牛们解惑，小弟万分感激……
HALF_TERM_SSTL_1P8 Cell operated at 1.8(nom)
HALF_TERM_LVCMOS_1P8 Cell operated at 1.8(nom)
NOSR0_NOTERM_1P8 Cell operated at 1.8(nom)
SR0_NOTERM_1P8 Cell operated at 1.8(nom)
FULL_TERM_SSTL_1P8 Cell operated at 1.8(nom)
NO_TERM_LVCMOS_1P8 Cell operated at 1.8(nom)
SR0_NOTERM_0.1_1P8 Cell operated at 1.8(nom)
