41set_clock_uncertainty命令:Specifies the uncertainty (skew) of the specified clock networks. set_clock_uncertainty[object_list| -fromfrom_clock| -rise_fromrise_from_clock| -fall_fromfall_from_clock-toto_clock| -rise_torise_to_clock| -fall_tofall_to_clock] [-rise] [-fall] [-setup] [-...
CLOCK GENERATORS,隔离型AC-DC转换器IC,单相全波风扇电机驱动器,内置OVP MICRO USB开关,4位LVDS接收机,VIDEO DECODERS,MULTIFUNCTION SINGLE-PHASE FULL-WAVE FAN MOTOR DRIVERS,I²C兼容接口镜头驱动器,LOAD SWITCH ICS,SPEECH PLAYBACK MCUS,INTEGRATED FET SWITCHING REGULATORS,4BIT LVDS RECEIVER,IGBT/MOSFET...
CLOCK GENERATORS,隔离型AC-DC转换器IC,单相全波风扇电机驱动器,内置OVP MICRO USB开关,4位LVDS接收机,VIDEO DECODERS,MULTIFUNCTION SINGLE-PHASE FULL-WAVE FAN MOTOR DRIVERS,I²C兼容接口镜头驱动器,LOAD SWITCH ICS,SPEECH PLAYBACK MCUS,INTEGRATED FET SWITCHING REGULATORS,4BIT LVDS RECEIVER,IGBT/MOSFET...
set_clock_gating_check -setup ${CG_SETUP_CHECK} -hold ${CG_HOLD_CHECK} [all_clocks] set_fix_multiple_port_nets -feedthroughs -outputs -buffer_constant set_attr -type string tcbn90lphpwc0d70d9_pg.db:tcbn90lphpwc0d70d9 default_threshold_voltage_group SVT_LS_LH set_attr -type string...
简单的同步器:使用set_clock_groups命令就可以了,或者设置成set_flase_path, 但是对于格雷码的同步不行,false_path的优先级最高,很显然这么做会导致所有跨读写时钟域的路径全部不做时序分析,读写指针和相关控制逻辑也就失去了存在的意义。 之前组内讨论时发现,每回PT工具报出来的STA报告都会有很多异步时钟的path出...
Joker: I sense we are kindred spirits, you and I. Oh, there are differences, to be sure, like hair. But underneath it all, we're both entrepreneurs, men of vision. We see an opportunity we grab it. Am I right? Right. But in the past few weeks, I've had a run of bad luck....
A pulse width of around 150usec is sufficient to see the full voltage sag and recovery in most DC/DC converters, so the PWM frequency can be set at around 330Hz. The LTC6992 datasheet recommends a 1024 clock frequency divider for this frequency which can be achieved via a divider ratio ...
set_domain_supply_net DES_DOMAIN –primary_power_net VDD12G –primary_ground_net VSS 做完这一步,电源网络申明基本完成。 4.3 添加 Power Switch 这添加 Power Switch 主要是 2 步,第一步创建 Power Switch,第二步 map Power Switch。可以参看以下脚本进行: ...
用通俗的话来说:同步器的主要使用方式是继承,子类通过继承同步器并实现它的抽象方法来管理同步状态,在抽象方法的实现过程中免不了要对同步状态进行更改,这时就需要使用同步器提供的3个方法(getState()、setState(int newState)和compareAndSetState(int expect,int update))来进行操作,因为它们能够保证状态的改变是...
The controller’s clock is set by a single resistor on the RT pin, with the relative phase(s) of subnode(s) programmed through a resistor divider on the RT pin. In the case shown in Figure 12, RT is grounded to set the subnode to 180° phase shifted from the controller. Figure 12...