收藏本站
a. Adjust the (negative) programmable delay in the FCCC (as described in “Clocking in SmartFusion2” section on
page 127 ) until External Setup violations go away in Max Delay Analysis, but not so far as to introduce Internal
Setup violations.
b. Adjust all input delays until hold violations on paths ending at input ports go away in Min Delay Analysis, using
the -IN_DELAY x switch in the PDC.
Notes on Synthesis:
To ensure that timing is met, it is important to be able to push as many flip-flops as possible into the I/O registers. To
accomplish this, keep the max fanout on output registers at 1 during synthesis. This can be accomplished using the
following SDC attributes in the Synthesis constraint file (The instance name need to match with the instance name of
your design):
define_attribute
{{i:UCORE.MAKE_TARGET.DATAPATHE64.MAKE_DATAPATH_REGISTERS.AD_REGS[31:0]}}
{syn_preserve} {1}
define_attribute {{i:UCORE.MAKE\.UDMA.CBEN_PAD[7:0]}} {syn_replicate} {1}
define_attribute {{i:UCORE.MAKE\.UDMA.CBEN_PAD[7:0]}} {syn_maxfan} {1}
define_attribute
{{i:UCORE.MAKE_TARGET.DATAPATHE.MAKE_DATAPATH_REGISTERS.AD_REGS[31:0]}} {syn_preserve}
{1}
define_attribute {{i:UCORE.MAKE_TARGET.BurstE.UA1\.MAKE_ACK64_OUT.Q_INT}}
{syn_replicate} {1}
define_attribute {{i:UCORE.MAKE\.UDMA.MAKE_REQ64N1.Q_INT}} {syn_replicate} {1}
define_attribute {{i:UCORE.MAKE\.UDMA.MAKE_REQ64N1.Q_INT}} {syn_maxfan} {1}
define_attribute {{i:UCORE.MAKE_TARGET.BurstE.UA1\.MAKE_ACK64_OUT.Q_INT}} {syn_maxfan}
{1}
define_attribute {{i:UCORE.MAKE_TARGET.BurstE.UM1\.MAKE_IRDY_OUT.Q_INT}}
{syn_replicate} {1}
define_attribute {{i:UCORE.MAKE_TARGET.BurstE.UM1\.MAKE_IRDY_OUT.Q_INT}} {syn_maxfan}
{1}
132
v4.0
发布紧急采购，3分钟左右您将得到回复。

采购需求

(若只采购一条型号，填写一行即可)

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

*型号 *数量 厂商 批号 封装
添加更多采购

我的联系方式

*
*
*
相关PDF资料
COREU1LL-AR IP MODULE COREU1LL
COREU1PHY-AR IP MODULE COREU1PHY
CORR-8BIT-XM-UT2 SITE LICENSE IP CORRELATOR XP
CP2-GSA-L CONN SHIELD LOWER TYPE A 22
CP2-HSA110-1 CONN SHROUD CPCI 2MM TYPE A 22
CP2-HSC055-4 CONN SHROUD CPCI 2MM TYPE C 11
CP2-K3567-SR-F COMPACT PCI - MISC
CP2105EK KIT EVAL FOR CP2105
相关代理商/技术参数
COREPCIF-RMFL 功能描述:IP MODULE 制造商:microsemi corporation 系列:- 零件状态:在售 类型:许可证 应用:- 版本:- 许可长度:- 许可 - 用户明细:- 操作系统:- 配套使用产品/相关产品:Microsemi 器件 媒体分发类型:- 标准包装:1
COREPCIF-UR 功能描述:HW/SW/OTHER 制造商:microsemi corporation 系列:* 零件状态:在售 标准包装:1
COREPCI-SN 制造商:ACTEL 制造商全称:Actel Corporation 功能描述:CorePCI v5.41
COREPCI-SR 制造商:ACTEL 制造商全称:Actel Corporation 功能描述:CorePCI v5.41
COREPCI-UR 制造商:ACTEL 制造商全称:Actel Corporation 功能描述:CorePCI v5.41
COREPCI-XX 制造商:ACTEL 制造商全称:Actel Corporation 功能描述:CorePCI v5.41
COREPRO LEDBULB 10.5-60W B 制造商:Philips Lumileds 功能描述:
COREPRO LEDBULB 10.5-60W E 制造商:Philips Lumileds 功能描述: