ICC是怎么计算load的
时间：10-02
整理：3721RD
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各位，我在CTS后发现相同的net 的 cap 比 CTS 前都要增加，有些还挺夸张的，但是cell 的位置和fanout 都没有变，所以想请教一下，ICC到底是怎么算load的。
PointFanoutCapTransIncrPath
----------------------------------------------------------------------------------------------
clock CLK_SD (rise edge)0.000000.00000
clock network delay (ideal)0.000000.00000
u_sdio_host/u_syn/u_ciu_s0_dtw0/meta1_reg/CK (FFSDQHDMX)0.400000.000000.00000 r
u_sdio_host/u_syn/u_ciu_s0_dtw0/meta1_reg/Q (FFSDQHDMX)0.273460.656040.65604 f
u_sdio_host/u_syn/u_ciu_s0_dtw0/dout (net)30.017470.000000.65604 f
u_sdio_host/u_syn/u_ciu_s0_dtw0/dout (meta_14)0.000000.65604 f
u_sdio_host/u_syn/ciu_s0_dtw[0] (net)0.017470.000000.65604 f
u_sdio_host/u_syn/ciu_s0_dtw[0] (syn)0.000000.65604 f
u_sdio_host/ciu_s0_dtw[0] (net)0.017470.000000.65604 f
u_sdio_host/u_ciu/ciu_s0_dtw[0] (ciu)0.000000.65604 f
u_sdio_host/u_ciu/ciu_s0_dtw[0] (net)0.017470.000000.65604 f
u_sdio_host/u_ciu/U11/AN (NOR2B1HD1X)0.273460.00000 *0.65604 f
u_sdio_host/u_ciu/U11/Z (NOR2B1HD1X)0.199290.346661.00270 f
u_sdio_host/u_ciu/n7 (net)60.021390.000001.00270 f
u_sdio_host/u_ciu/u_dat/ciu_dtw (dat)0.000001.00270 f
u_sdio_host/u_ciu/u_dat/ciu_dtw (net)0.021390.000001.00270 f
u_sdio_host/u_ciu/u_dat/U1049/A (NAND2HDLX)0.199290.00000 *1.00270 f
u_sdio_host/u_ciu/u_dat/U1049/Z (NAND2HDLX)0.591250.432181.43488 r
u_sdio_host/u_ciu/u_dat/n2679 (net)30.015120.000001.43488 r
u_sdio_host/u_ciu/u_dat/U2772/A (INVCLKHD1X)0.591250.00000 *1.43488 r
u_sdio_host/u_ciu/u_dat/U2772/Z (INVCLKHD1X)0.220280.234001.66888 f
u_sdio_host/u_ciu/u_dat/n2672 (net)20.009290.000001.66888 f
u_sdio_host/u_ciu/u_dat/U572/B (NOR2HD2X)0.220280.00000 *1.66888 f
u_sdio_host/u_ciu/u_dat/U572/Z (NOR2HD2X)0.209420.198691.86758 r
u_sdio_host/u_ciu/u_dat/n2520 (net)40.016760.000001.86758 r
u_sdio_host/u_ciu/u_dat/U2765/A (INVCLKHD1X)0.209420.00000 *1.86758 r
u_sdio_host/u_ciu/u_dat/U2765/Z (INVCLKHD1X)0.175020.175102.04268 f
u_sdio_host/u_ciu/u_dat/n1025 (net)20.015190.000002.04268 f
u_sdio_host/u_ciu/u_dat/U570/A (NOR2HD4X)0.175020.00000 *2.04268 f
u_sdio_host/u_ciu/u_dat/U570/Z (NOR2HD4X)0.272600.241212.28389 r
u_sdio_host/u_ciu/u_dat/n1042 (net)200.050300.000002.28389 r
u_sdio_host/u_ciu/u_dat/U165/A (INVCLKHD3X)0.272600.00000 *2.28389 r
u_sdio_host/u_ciu/u_dat/U165/Z (INVCLKHD3X)0.172860.181952.46584 f
u_sdio_host/u_ciu/u_dat/n235 (net)100.042340.000002.46584 f
u_sdio_host/u_ciu/u_dat/U874/A (NOR2HDLX)0.172860.00000 *2.46584 f
u_sdio_host/u_ciu/u_dat/U874/Z (NOR2HDLX)0.686100.494872.96070 r
u_sdio_host/u_ciu/u_dat/n2368 (net)30.012970.000002.96070 r
u_sdio_host/u_ciu/u_dat/U2575/B (OAI21HDLX)0.686100.00000 *2.96070 r
u_sdio_host/u_ciu/u_dat/U2575/Z (OAI21HDLX)0.177250.240573.20127 f
u_sdio_host/u_ciu/u_dat/n2519 (net)10.001740.000003.20127 f
u_sdio_host/u_ciu/u_dat/U2574/C (OAI21HDLX)0.177250.00000 *3.20127 f
u_sdio_host/u_ciu/u_dat/U2574/Z (OAI21HDLX)0.228940.192093.39337 r
u_sdio_host/u_ciu/u_dat/n2518 (net)10.003220.000003.39337 r
u_sdio_host/u_ciu/u_dat/U2573/A (INVCLKHD1X)0.228940.00000 *3.39337 r
u_sdio_host/u_ciu/u_dat/U2573/Z (INVCLKHD1X)0.107520.123623.51698 f
u_sdio_host/u_ciu/u_dat/n2514 (net)20.005210.000003.51698 f
u_sdio_host/u_ciu/u_dat/U923/C (OAI211HDLX)0.107520.00000 *3.51698 f
u_sdio_host/u_ciu/u_dat/U923/Z (OAI211HDLX)0.447650.260753.77773 r
u_sdio_host/u_ciu/u_dat/N7739 (net)20.005160.000003.77773 r
u_sdio_host/u_ciu/u_dat/dat_en_reg_10_/D (FFSDQHDLX)0.447650.00000 *3.77773 r
data arrival time3.77773
clock CLK_SD (rise edge)10.0000010.00000
clock network delay (ideal)0.0000010.00000
clock reconvergence pessimism0.0000010.00000
clock uncertainty-0.350009.65000
u_sdio_host/u_ciu/u_dat/dat_en_reg_10_/CK (FFSDQHDLX)0.000009.65000 r
library setup time-0.286759.36325
data required time9.36325
----------------------------------------------------------------------------------------------
data required time9.36325
data arrival time-3.77773
----------------------------------------------------------------------------------------------
slack (MET)5.58551
这是place之后的report。
PointFanoutCapTransIncrPath
----------------------------------------------------------------------------------------------
clock CLK_SD (rise edge)0.000000.00000
clk_sd (in)0.131970.066040.06604 r
clk_sd (net)10.024940.000000.06604 r
u_clocks/u_tckmux/BUFCLKHD80X_G1B1I13/A (BUFCLKHD14X)0.131970.00099 *0.06702 r
u_clocks/u_tckmux/BUFCLKHD80X_G1B1I13/Z (BUFCLKHD14X)0.122120.192840.25986 r
u_clocks/u_tckmux/clk_sd_G1B1I1 (net)10.110240.000000.25986 r
u_clocks/u_tckmux/genblk1_0__HANDINST_MUX/A (MUX2HD7X)0.122120.01182 *0.27168 r
u_clocks/u_tckmux/genblk1_0__HANDINST_MUX/Z (MUX2HD7X)0.192830.291690.56337 r
u_clocks/u_tckmux/OUT[0] (net)10.128250.000000.56337 r
u_clocks/CTS_CLK_SD_CTO_route_inv539/A (INVHD12X)0.192830.01625 *0.57962 r
u_clocks/CTS_CLK_SD_CTO_route_inv539/Z (INVHD12X)0.113540.124690.70431 f
u_clocks/CTS_CLK_SD_CTO_route_inv5391 (net)10.172260.000000.70431 f
u_clocks/CTS_CLK_SD_CTO_route_inv540/A (INVHD20X)0.116670.02464 *0.72895 f
u_clocks/CTS_CLK_SD_CTO_route_inv540/Z (INVHD20X)0.099540.104510.83346 r
u_clocks/CTS_CLK_SD_CTO_route_inv5401 (net)20.159400.000000.83346 r
u_clocks/u_sdclk/genblk1_0__HANDINST_CLKGATE/CK (CLKGTHD20X)0.103530.02511 *0.85857 r
u_clocks/u_sdclk/genblk1_0__HANDINST_CLKGATE/Z (CLKGTHD20X)0.247680.545871.40445 r
u_clocks/u_sdclk/GCLK[0] (net)110.488320.000001.40445 r
BUFCLKHD16X_G3B2I1/A (BUFCLKHD30X)0.261630.07268 *1.47713 r
BUFCLKHD16X_G3B2I1/Z (BUFCLKHD30X)0.097580.225241.70237 r
GCLK_G3B1I1[0] (net)140.232410.000001.70237 r
CTS_CLK_SD_CTO_delay547/A (BUFCLKHD40X)0.097580.01138 *1.71376 r
CTS_CLK_SD_CTO_delay547/Z (BUFCLKHD40X)0.051650.135261.84902 r
CTS_CLK_SD_CTO_delay5471 (net)30.084170.000001.84902 r
u_sdio_host/BUFCLKHD3X_G3B1I10/A (BUFCLKHD3X)0.051650.00362 *1.85263 r
u_sdio_host/BUFCLKHD3X_G3B1I10/Z (BUFCLKHD3X)0.409830.339442.19208 r
u_sdio_host/GCLK_G3B2I10[0] (net)290.134360.000002.19208 r
u_sdio_host/u_syn/u_ciu_s0_dtw0/meta1_reg/CK (FFSDQHDMX)0.409830.00406 *2.19613 r
u_sdio_host/u_syn/u_ciu_s0_dtw0/meta1_reg/CK (FFSDQHDMX)0.409830.000002.19613 r
u_sdio_host/u_syn/u_ciu_s0_dtw0/meta1_reg/Q (FFSDQHDMX)0.457060.730932.92707 r
u_sdio_host/u_syn/u_ciu_s0_dtw0/dout (net)30.021590.000002.92707 r
u_sdio_host/u_syn/u_ciu_s0_dtw0/dout (meta_14)0.000002.92707 r
u_sdio_host/u_syn/ciu_s0_dtw[0] (net)0.021590.000002.92707 r
u_sdio_host/u_syn/ciu_s0_dtw[0] (syn)0.000002.92707 r
u_sdio_host/ciu_s0_dtw[0] (net)0.021590.000002.92707 r
u_sdio_host/u_ciu/ciu_s0_dtw[0] (ciu)0.000002.92707 r
u_sdio_host/u_ciu/ciu_s0_dtw[0] (net)0.021590.000002.92707 r
u_sdio_host/u_ciu/U11/AN (NOR2B1HD1X)0.457060.00039 *2.92746 r
u_sdio_host/u_ciu/U11/Z (NOR2B1HD1X)4.815843.002565.93002 r
u_sdio_host/u_ciu/n7 (net)60.271680.000005.93002 r
u_sdio_host/u_ciu/u_dat/ciu_dtw (dat)0.000005.93002 r
u_sdio_host/u_ciu/u_dat/ciu_dtw (net)0.271680.000005.93002 r
u_sdio_host/u_ciu/u_dat/U1008/A (NAND3HD2X)4.815840.07324 *6.00325 r
u_sdio_host/u_ciu/u_dat/U1008/Z (NAND3HD2X)1.313421.706747.70999 f
u_sdio_host/u_ciu/u_dat/n2177 (net)100.117460.000007.70999 f
u_sdio_host/u_ciu/u_dat/U2771/A (NOR2HD3X)1.313420.01017 *7.72016 f
u_sdio_host/u_ciu/u_dat/U2771/Z (NOR2HD3X)0.693560.702148.42229 r
u_sdio_host/u_ciu/u_dat/n2369 (net)30.089600.000008.42229 r
u_sdio_host/u_ciu/u_dat/U2575/A (OAI21HDLX)0.693560.00034 *8.42263 r
u_sdio_host/u_ciu/u_dat/U2575/Z (OAI21HDLX)0.266220.326148.74877 f
u_sdio_host/u_ciu/u_dat/n2519 (net)10.004080.000008.74877 f
u_sdio_host/u_ciu/u_dat/U2574/C (OAI21HDLX)0.266220.00009 *8.74886 f
u_sdio_host/u_ciu/u_dat/U2574/Z (OAI21HDLX)0.368530.235818.98468 r
u_sdio_host/u_ciu/u_dat/n2518 (net)10.003770.000008.98468 r
u_sdio_host/u_ciu/u_dat/U2573/A (INVCLKHD1X)0.368530.00015 *8.98483 r
u_sdio_host/u_ciu/u_dat/U2573/Z (INVCLKHD1X)0.405610.368179.35300 f
u_sdio_host/u_ciu/u_dat/n2514 (net)20.040940.000009.35300 f
u_sdio_host/u_ciu/u_dat/U923/C (OAI211HDLX)0.405610.00252 *9.35552 f
u_sdio_host/u_ciu/u_dat/U923/Z (OAI211HDLX)15.608627.6454817.00100 r
u_sdio_host/u_ciu/u_dat/N7739 (net)20.318660.0000017.00100 r
u_sdio_host/u_ciu/u_dat/dat_en_reg_10_/D (FFSDQHDLX)15.608620.10834 * 17.10933 r
data arrival time17.10933
clock CLK_SD (rise edge)10.0000010.00000
clk_sd (in)0.131970.0660410.06604 r
clk_sd (net)10.024940.0000010.06604 r
u_clocks/u_tckmux/BUFCLKHD80X_G1B1I13/A (BUFCLKHD14X)0.131970.00099 * 10.06702 r
u_clocks/u_tckmux/BUFCLKHD80X_G1B1I13/Z (BUFCLKHD14X)0.122120.1928410.25986 r
u_clocks/u_tckmux/clk_sd_G1B1I1 (net)10.110240.0000010.25986 r
u_clocks/u_tckmux/genblk1_0__HANDINST_MUX/A (MUX2HD7X)0.122120.01182 * 10.27168 r
u_clocks/u_tckmux/genblk1_0__HANDINST_MUX/Z (MUX2HD7X)0.192830.2916910.56337 r
u_clocks/u_tckmux/OUT[0] (net)10.128250.0000010.56337 r
u_clocks/CTS_CLK_SD_CTO_route_inv539/A (INVHD12X)0.192830.01625 * 10.57962 r
u_clocks/CTS_CLK_SD_CTO_route_inv539/Z (INVHD12X)0.113540.1246910.70431 f
u_clocks/CTS_CLK_SD_CTO_route_inv5391 (net)10.172260.0000010.70431 f
u_clocks/CTS_CLK_SD_CTO_route_inv540/A (INVHD20X)0.116670.02464 * 10.72895 f
u_clocks/CTS_CLK_SD_CTO_route_inv540/Z (INVHD20X)0.099540.1045110.83346 r
u_clocks/CTS_CLK_SD_CTO_route_inv5401 (net)20.159400.0000010.83346 r
u_clocks/u_sdclk/genblk1_0__HANDINST_CLKGATE/CK (CLKGTHD20X)0.103530.02511 * 10.85857 r
u_clocks/u_sdclk/genblk1_0__HANDINST_CLKGATE/Z (CLKGTHD20X)0.247680.5458711.40445 r
u_clocks/u_sdclk/GCLK[0] (net)110.488320.0000011.40445 r
u_sdio_host/u_ciu/u_dat/clk_gate_dat_en_reg_0/latch/CK (CLKGTPHD8X)0.280500.11198 * 11.51643 r
u_sdio_host/u_ciu/u_dat/clk_gate_dat_en_reg_0/latch/Z (CLKGTPHD8X)0.256360.59001 12.10644 r
u_sdio_host/u_ciu/u_dat/clk_gate_dat_en_reg_0/ENCLK (net)160.213320.0000012.10644 r
u_sdio_host/u_ciu/u_dat/dat_en_reg_10_/CK (FFSDQHDLX)0.257780.03361 * 12.14005 r
clock reconvergence pessimism0.0000012.14005
clock uncertainty-0.3500011.79005
u_sdio_host/u_ciu/u_dat/dat_en_reg_10_/CK (FFSDQHDLX)0.0000011.79005 r
library setup time-3.081408.70866
data required time8.70866
----------------------------------------------------------------------------------------------
data required time8.70866
data arrival time-17.10933
----------------------------------------------------------------------------------------------
slack (VIOLATED)-8.40068
这是CTS后的。
比如说红色那条net，为什么cap会相差那么远，三个cell的位置都没有变，u_sdio_host/u_ciu/u_dat/U923 (OAI211HDLX)和另外两个cell隔着hardmacro。
PointFanoutCapTransIncrPath
----------------------------------------------------------------------------------------------
clock CLK_SD (rise edge)0.000000.00000
clock network delay (ideal)0.000000.00000
u_sdio_host/u_syn/u_ciu_s0_dtw0/meta1_reg/CK (FFSDQHDMX)0.400000.000000.00000 r
u_sdio_host/u_syn/u_ciu_s0_dtw0/meta1_reg/Q (FFSDQHDMX)0.273460.656040.65604 f
u_sdio_host/u_syn/u_ciu_s0_dtw0/dout (net)30.017470.000000.65604 f
u_sdio_host/u_syn/u_ciu_s0_dtw0/dout (meta_14)0.000000.65604 f
u_sdio_host/u_syn/ciu_s0_dtw[0] (net)0.017470.000000.65604 f
u_sdio_host/u_syn/ciu_s0_dtw[0] (syn)0.000000.65604 f
u_sdio_host/ciu_s0_dtw[0] (net)0.017470.000000.65604 f
u_sdio_host/u_ciu/ciu_s0_dtw[0] (ciu)0.000000.65604 f
u_sdio_host/u_ciu/ciu_s0_dtw[0] (net)0.017470.000000.65604 f
u_sdio_host/u_ciu/U11/AN (NOR2B1HD1X)0.273460.00000 *0.65604 f
u_sdio_host/u_ciu/U11/Z (NOR2B1HD1X)0.199290.346661.00270 f
u_sdio_host/u_ciu/n7 (net)60.021390.000001.00270 f
u_sdio_host/u_ciu/u_dat/ciu_dtw (dat)0.000001.00270 f
u_sdio_host/u_ciu/u_dat/ciu_dtw (net)0.021390.000001.00270 f
u_sdio_host/u_ciu/u_dat/U1049/A (NAND2HDLX)0.199290.00000 *1.00270 f
u_sdio_host/u_ciu/u_dat/U1049/Z (NAND2HDLX)0.591250.432181.43488 r
u_sdio_host/u_ciu/u_dat/n2679 (net)30.015120.000001.43488 r
u_sdio_host/u_ciu/u_dat/U2772/A (INVCLKHD1X)0.591250.00000 *1.43488 r
u_sdio_host/u_ciu/u_dat/U2772/Z (INVCLKHD1X)0.220280.234001.66888 f
u_sdio_host/u_ciu/u_dat/n2672 (net)20.009290.000001.66888 f
u_sdio_host/u_ciu/u_dat/U572/B (NOR2HD2X)0.220280.00000 *1.66888 f
u_sdio_host/u_ciu/u_dat/U572/Z (NOR2HD2X)0.209420.198691.86758 r
u_sdio_host/u_ciu/u_dat/n2520 (net)40.016760.000001.86758 r
u_sdio_host/u_ciu/u_dat/U2765/A (INVCLKHD1X)0.209420.00000 *1.86758 r
u_sdio_host/u_ciu/u_dat/U2765/Z (INVCLKHD1X)0.175020.175102.04268 f
u_sdio_host/u_ciu/u_dat/n1025 (net)20.015190.000002.04268 f
u_sdio_host/u_ciu/u_dat/U570/A (NOR2HD4X)0.175020.00000 *2.04268 f
u_sdio_host/u_ciu/u_dat/U570/Z (NOR2HD4X)0.272600.241212.28389 r
u_sdio_host/u_ciu/u_dat/n1042 (net)200.050300.000002.28389 r
u_sdio_host/u_ciu/u_dat/U165/A (INVCLKHD3X)0.272600.00000 *2.28389 r
u_sdio_host/u_ciu/u_dat/U165/Z (INVCLKHD3X)0.172860.181952.46584 f
u_sdio_host/u_ciu/u_dat/n235 (net)100.042340.000002.46584 f
u_sdio_host/u_ciu/u_dat/U874/A (NOR2HDLX)0.172860.00000 *2.46584 f
u_sdio_host/u_ciu/u_dat/U874/Z (NOR2HDLX)0.686100.494872.96070 r
u_sdio_host/u_ciu/u_dat/n2368 (net)30.012970.000002.96070 r
u_sdio_host/u_ciu/u_dat/U2575/B (OAI21HDLX)0.686100.00000 *2.96070 r
u_sdio_host/u_ciu/u_dat/U2575/Z (OAI21HDLX)0.177250.240573.20127 f
u_sdio_host/u_ciu/u_dat/n2519 (net)10.001740.000003.20127 f
u_sdio_host/u_ciu/u_dat/U2574/C (OAI21HDLX)0.177250.00000 *3.20127 f
u_sdio_host/u_ciu/u_dat/U2574/Z (OAI21HDLX)0.228940.192093.39337 r
u_sdio_host/u_ciu/u_dat/n2518 (net)10.003220.000003.39337 r
u_sdio_host/u_ciu/u_dat/U2573/A (INVCLKHD1X)0.228940.00000 *3.39337 r
u_sdio_host/u_ciu/u_dat/U2573/Z (INVCLKHD1X)0.107520.123623.51698 f
u_sdio_host/u_ciu/u_dat/n2514 (net)20.005210.000003.51698 f
u_sdio_host/u_ciu/u_dat/U923/C (OAI211HDLX)0.107520.00000 *3.51698 f
u_sdio_host/u_ciu/u_dat/U923/Z (OAI211HDLX)0.447650.260753.77773 r
u_sdio_host/u_ciu/u_dat/N7739 (net)20.005160.000003.77773 r
u_sdio_host/u_ciu/u_dat/dat_en_reg_10_/D (FFSDQHDLX)0.447650.00000 *3.77773 r
data arrival time3.77773
clock CLK_SD (rise edge)10.0000010.00000
clock network delay (ideal)0.0000010.00000
clock reconvergence pessimism0.0000010.00000
clock uncertainty-0.350009.65000
u_sdio_host/u_ciu/u_dat/dat_en_reg_10_/CK (FFSDQHDLX)0.000009.65000 r
library setup time-0.286759.36325
data required time9.36325
----------------------------------------------------------------------------------------------
data required time9.36325
data arrival time-3.77773
----------------------------------------------------------------------------------------------
slack (MET)5.58551
这是place之后的report。
PointFanoutCapTransIncrPath
----------------------------------------------------------------------------------------------
clock CLK_SD (rise edge)0.000000.00000
clk_sd (in)0.131970.066040.06604 r
clk_sd (net)10.024940.000000.06604 r
u_clocks/u_tckmux/BUFCLKHD80X_G1B1I13/A (BUFCLKHD14X)0.131970.00099 *0.06702 r
u_clocks/u_tckmux/BUFCLKHD80X_G1B1I13/Z (BUFCLKHD14X)0.122120.192840.25986 r
u_clocks/u_tckmux/clk_sd_G1B1I1 (net)10.110240.000000.25986 r
u_clocks/u_tckmux/genblk1_0__HANDINST_MUX/A (MUX2HD7X)0.122120.01182 *0.27168 r
u_clocks/u_tckmux/genblk1_0__HANDINST_MUX/Z (MUX2HD7X)0.192830.291690.56337 r
u_clocks/u_tckmux/OUT[0] (net)10.128250.000000.56337 r
u_clocks/CTS_CLK_SD_CTO_route_inv539/A (INVHD12X)0.192830.01625 *0.57962 r
u_clocks/CTS_CLK_SD_CTO_route_inv539/Z (INVHD12X)0.113540.124690.70431 f
u_clocks/CTS_CLK_SD_CTO_route_inv5391 (net)10.172260.000000.70431 f
u_clocks/CTS_CLK_SD_CTO_route_inv540/A (INVHD20X)0.116670.02464 *0.72895 f
u_clocks/CTS_CLK_SD_CTO_route_inv540/Z (INVHD20X)0.099540.104510.83346 r
u_clocks/CTS_CLK_SD_CTO_route_inv5401 (net)20.159400.000000.83346 r
u_clocks/u_sdclk/genblk1_0__HANDINST_CLKGATE/CK (CLKGTHD20X)0.103530.02511 *0.85857 r
u_clocks/u_sdclk/genblk1_0__HANDINST_CLKGATE/Z (CLKGTHD20X)0.247680.545871.40445 r
u_clocks/u_sdclk/GCLK[0] (net)110.488320.000001.40445 r
BUFCLKHD16X_G3B2I1/A (BUFCLKHD30X)0.261630.07268 *1.47713 r
BUFCLKHD16X_G3B2I1/Z (BUFCLKHD30X)0.097580.225241.70237 r
GCLK_G3B1I1[0] (net)140.232410.000001.70237 r
CTS_CLK_SD_CTO_delay547/A (BUFCLKHD40X)0.097580.01138 *1.71376 r
CTS_CLK_SD_CTO_delay547/Z (BUFCLKHD40X)0.051650.135261.84902 r
CTS_CLK_SD_CTO_delay5471 (net)30.084170.000001.84902 r
u_sdio_host/BUFCLKHD3X_G3B1I10/A (BUFCLKHD3X)0.051650.00362 *1.85263 r
u_sdio_host/BUFCLKHD3X_G3B1I10/Z (BUFCLKHD3X)0.409830.339442.19208 r
u_sdio_host/GCLK_G3B2I10[0] (net)290.134360.000002.19208 r
u_sdio_host/u_syn/u_ciu_s0_dtw0/meta1_reg/CK (FFSDQHDMX)0.409830.00406 *2.19613 r
u_sdio_host/u_syn/u_ciu_s0_dtw0/meta1_reg/CK (FFSDQHDMX)0.409830.000002.19613 r
u_sdio_host/u_syn/u_ciu_s0_dtw0/meta1_reg/Q (FFSDQHDMX)0.457060.730932.92707 r
u_sdio_host/u_syn/u_ciu_s0_dtw0/dout (net)30.021590.000002.92707 r
u_sdio_host/u_syn/u_ciu_s0_dtw0/dout (meta_14)0.000002.92707 r
u_sdio_host/u_syn/ciu_s0_dtw[0] (net)0.021590.000002.92707 r
u_sdio_host/u_syn/ciu_s0_dtw[0] (syn)0.000002.92707 r
u_sdio_host/ciu_s0_dtw[0] (net)0.021590.000002.92707 r
u_sdio_host/u_ciu/ciu_s0_dtw[0] (ciu)0.000002.92707 r
u_sdio_host/u_ciu/ciu_s0_dtw[0] (net)0.021590.000002.92707 r
u_sdio_host/u_ciu/U11/AN (NOR2B1HD1X)0.457060.00039 *2.92746 r
u_sdio_host/u_ciu/U11/Z (NOR2B1HD1X)4.815843.002565.93002 r
u_sdio_host/u_ciu/n7 (net)60.271680.000005.93002 r
u_sdio_host/u_ciu/u_dat/ciu_dtw (dat)0.000005.93002 r
u_sdio_host/u_ciu/u_dat/ciu_dtw (net)0.271680.000005.93002 r
u_sdio_host/u_ciu/u_dat/U1008/A (NAND3HD2X)4.815840.07324 *6.00325 r
u_sdio_host/u_ciu/u_dat/U1008/Z (NAND3HD2X)1.313421.706747.70999 f
u_sdio_host/u_ciu/u_dat/n2177 (net)100.117460.000007.70999 f
u_sdio_host/u_ciu/u_dat/U2771/A (NOR2HD3X)1.313420.01017 *7.72016 f
u_sdio_host/u_ciu/u_dat/U2771/Z (NOR2HD3X)0.693560.702148.42229 r
u_sdio_host/u_ciu/u_dat/n2369 (net)30.089600.000008.42229 r
u_sdio_host/u_ciu/u_dat/U2575/A (OAI21HDLX)0.693560.00034 *8.42263 r
u_sdio_host/u_ciu/u_dat/U2575/Z (OAI21HDLX)0.266220.326148.74877 f
u_sdio_host/u_ciu/u_dat/n2519 (net)10.004080.000008.74877 f
u_sdio_host/u_ciu/u_dat/U2574/C (OAI21HDLX)0.266220.00009 *8.74886 f
u_sdio_host/u_ciu/u_dat/U2574/Z (OAI21HDLX)0.368530.235818.98468 r
u_sdio_host/u_ciu/u_dat/n2518 (net)10.003770.000008.98468 r
u_sdio_host/u_ciu/u_dat/U2573/A (INVCLKHD1X)0.368530.00015 *8.98483 r
u_sdio_host/u_ciu/u_dat/U2573/Z (INVCLKHD1X)0.405610.368179.35300 f
u_sdio_host/u_ciu/u_dat/n2514 (net)20.040940.000009.35300 f
u_sdio_host/u_ciu/u_dat/U923/C (OAI211HDLX)0.405610.00252 *9.35552 f
u_sdio_host/u_ciu/u_dat/U923/Z (OAI211HDLX)15.608627.6454817.00100 r
u_sdio_host/u_ciu/u_dat/N7739 (net)20.318660.0000017.00100 r
u_sdio_host/u_ciu/u_dat/dat_en_reg_10_/D (FFSDQHDLX)15.608620.10834 * 17.10933 r
data arrival time17.10933
clock CLK_SD (rise edge)10.0000010.00000
clk_sd (in)0.131970.0660410.06604 r
clk_sd (net)10.024940.0000010.06604 r
u_clocks/u_tckmux/BUFCLKHD80X_G1B1I13/A (BUFCLKHD14X)0.131970.00099 * 10.06702 r
u_clocks/u_tckmux/BUFCLKHD80X_G1B1I13/Z (BUFCLKHD14X)0.122120.1928410.25986 r
u_clocks/u_tckmux/clk_sd_G1B1I1 (net)10.110240.0000010.25986 r
u_clocks/u_tckmux/genblk1_0__HANDINST_MUX/A (MUX2HD7X)0.122120.01182 * 10.27168 r
u_clocks/u_tckmux/genblk1_0__HANDINST_MUX/Z (MUX2HD7X)0.192830.2916910.56337 r
u_clocks/u_tckmux/OUT[0] (net)10.128250.0000010.56337 r
u_clocks/CTS_CLK_SD_CTO_route_inv539/A (INVHD12X)0.192830.01625 * 10.57962 r
u_clocks/CTS_CLK_SD_CTO_route_inv539/Z (INVHD12X)0.113540.1246910.70431 f
u_clocks/CTS_CLK_SD_CTO_route_inv5391 (net)10.172260.0000010.70431 f
u_clocks/CTS_CLK_SD_CTO_route_inv540/A (INVHD20X)0.116670.02464 * 10.72895 f
u_clocks/CTS_CLK_SD_CTO_route_inv540/Z (INVHD20X)0.099540.1045110.83346 r
u_clocks/CTS_CLK_SD_CTO_route_inv5401 (net)20.159400.0000010.83346 r
u_clocks/u_sdclk/genblk1_0__HANDINST_CLKGATE/CK (CLKGTHD20X)0.103530.02511 * 10.85857 r
u_clocks/u_sdclk/genblk1_0__HANDINST_CLKGATE/Z (CLKGTHD20X)0.247680.5458711.40445 r
u_clocks/u_sdclk/GCLK[0] (net)110.488320.0000011.40445 r
u_sdio_host/u_ciu/u_dat/clk_gate_dat_en_reg_0/latch/CK (CLKGTPHD8X)0.280500.11198 * 11.51643 r
u_sdio_host/u_ciu/u_dat/clk_gate_dat_en_reg_0/latch/Z (CLKGTPHD8X)0.256360.59001 12.10644 r
u_sdio_host/u_ciu/u_dat/clk_gate_dat_en_reg_0/ENCLK (net)160.213320.0000012.10644 r
u_sdio_host/u_ciu/u_dat/dat_en_reg_10_/CK (FFSDQHDLX)0.257780.03361 * 12.14005 r
clock reconvergence pessimism0.0000012.14005
clock uncertainty-0.3500011.79005
u_sdio_host/u_ciu/u_dat/dat_en_reg_10_/CK (FFSDQHDLX)0.0000011.79005 r
library setup time-3.081408.70866
data required time8.70866
----------------------------------------------------------------------------------------------
data required time8.70866
data arrival time-17.10933
----------------------------------------------------------------------------------------------
slack (VIOLATED)-8.40068
这是CTS后的。
比如说红色那条net，为什么cap会相差那么远，三个cell的位置都没有变，u_sdio_host/u_ciu/u_dat/U923 (OAI211HDLX)和另外两个cell隔着hardmacro。
cts后面的有没有做route?
你先用report_delay_calculation -from u_sdio_host/u_ciu/u_dat/U923/C -to u_sdio_host/u_ciu/u_dat/U923/Z
看看两个有任何不一样 ，应该是CTS 之后u_sdio_host/u_ciu/u_dat/U923/Z 端cap 变大了
然后你就要看u_sdio_host/u_ciu/u_dat/U923/Z connectivity ，可能不只是连了一个reg，其他的cell 可能在CTS 时被relocation了 ， 甚至 连接这个端口的cell中有些是clock path 上 CTS 就动作更大了。
距离远了 cap 就大了 delay就很大了
不过这种不用担心 你继续下一步 clock_opt -only_psyn 可以把它修掉的
以上言论不代表本台立场
没有的
我确定没有任何cell relocation，因为我为了验证这个把它们都 set dont touch 了，谢谢你的指导。
你确定u_sdio_host/u_ciu/u_dat/U923/Z 这个端口接的所有cell 都没有变化? 不可能无缘无故就cap 变大的
红色的那条net有两个fanout,另一条负载看过没?还是没有变化吗?
还有就是你place 和cts的环境有没有什么不同，sdc和相关setting有没有差别?
你可以试试分别报出同一个pin的load（place 和cts）,看看详细报告