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57 lines
No EOL
1.4 KiB
Text
57 lines
No EOL
1.4 KiB
Text
library (retention) {
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delay_model : table_lookup;
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voltage_unit : 1V;
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current_unit : 1mA;
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leakage_power_unit : 1nW;
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time_unit : 1ns;
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capacitive_load_unit (1, pf);
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pulling_resistance_unit : 1kohm;
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input_threshold_pct_rise : 50;
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input_threshold_pct_fall : 50;
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output_threshold_pct_rise : 50;
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output_threshold_pct_fall : 50;
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slew_lower_threshold_pct_rise : 30;
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slew_upper_threshold_pct_rise : 70;
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slew_upper_threshold_pct_fall : 70;
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slew_lower_threshold_pct_fall : 30;
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cell ("retention_cell") {
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ff (Q1,QN1) {
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clocked_on : "CK";
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next_state : "(D * !SE + SI * SE)";
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clear : "(((!B2B) * !Q2) + !RD)";
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preset : "((!B2B) * Q2)";
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clear_preset_var1 : "L";
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clear_preset_var2 : "H";
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}
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latch (Q2,QN2) {
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enable : "B1";
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data_in : "Q1";
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}
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pin (B1) {
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direction : input;
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}
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pin (B2B) {
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direction : input;
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}
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pin (CK) {
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clock : true;
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direction : input;
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}
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pin (D) {
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direction : input;
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}
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pin (Q) {
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direction : output;
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function : "Q1";
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}
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pin (RD) {
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direction : input;
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}
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pin (SE) {
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direction : input;
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}
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pin (SI) {
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direction : input;
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}
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}
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} |