void power_calc_inverter_with_input(t_power_usage * power_usage,
float * input_dynamic_power, float in_density, float in_prob,
float size) {
float C_drain, C_gate, C_source;
float C_inv;
float C_in;
float PMOS_size = g_power_tech->PN_ratio * size;
float NMOS_size = size;
power_usage->dynamic = 0.;
power_usage->leakage = 0.;
C_inv = 0.;
C_in = 0.;
power_calc_transistor_capacitance(&C_drain, &C_source, &C_gate, NMOS,
NMOS_size);
C_inv += C_gate + C_drain;
C_in += C_gate;
power_calc_transistor_capacitance(&C_drain, &C_source, &C_gate, PMOS,
PMOS_size);
C_inv += C_gate + C_drain;
C_in += C_gate;
power_usage->dynamic = power_calc_node_switching(C_inv, in_density);
*input_dynamic_power = power_calc_node_switching(C_in, in_density);
power_usage->leakage = in_prob * power_calc_leakage_st(PMOS, PMOS_size)
+ (1 - in_prob) * power_calc_leakage_st(NMOS, NMOS_size);
power_usage->leakage += in_prob * power_calc_leakage_gate(NMOS, NMOS_size)
+ (1 - in_prob) * power_calc_leakage_gate(PMOS, PMOS_size);
}
/**
* Calculates the power of a 2-input multiplexer, comprised of transmission gates
* - power_usage: (Return value) Power usage of the mux
* - in_dens: Array of input transition densities
* - in_prob: Array of input signal probabilities
* - sel_desn: Transition density of select line
* - sel_prob: Signal probability of select line
* - out_dens: Transition density of the output
*/
void power_usage_MUX2_transmission(t_power_usage * power_usage, float * in_dens,
float * in_prob, float sel_dens, float sel_prob, float out_dens,
float period) {
power_zero_usage(power_usage);
/* A transmission gate leaks if the selected input != other input */
power_usage->leakage += (in_prob[0] * (1 - in_prob[1])
+ (1 - in_prob[0]) * in_prob[1])
* (g_power_commonly_used->NMOS_1X_st_leakage
+ g_power_commonly_used->PMOS_1X_st_leakage);
/* Gate switching */
power_usage->dynamic += 2
* power_calc_node_switching(
g_power_commonly_used->NMOS_1X_C_g
+ g_power_commonly_used->PMOS_1X_C_g, sel_dens,
period);
/* Input switching */
power_usage->dynamic += power_calc_node_switching(
g_power_commonly_used->NMOS_1X_C_d
+ g_power_commonly_used->PMOS_1X_C_s, in_dens[0], period);
power_usage->dynamic += power_calc_node_switching(
g_power_commonly_used->NMOS_1X_C_d
+ g_power_commonly_used->PMOS_1X_C_s, in_dens[1], period);
/* Output switching */
power_usage->dynamic += power_calc_node_switching(
2
* (g_power_commonly_used->NMOS_1X_C_s
+ g_power_commonly_used->PMOS_1X_C_d), out_dens,
period);
}
/**
* Calculates the power of an inverter, with irregular P/N ratio
* - power_usage: (Return value) The power usage of the inverter
* - dy_power_input: (Return value) The dynamic power of the input node
* - in_dens: The transition density of the input
* - in_prob: The signal probability of the input
* - PMOS_size: (W/L) of the PMOS
* - NMOS_size: (W/L) of the NMOS
*/
void power_usage_inverter_irregular(t_power_usage * power_usage,
float * dyn_power_input, float in_density, float in_probability,
float PMOS_size, float NMOS_size, float period) {
float C_drain, C_gate, C_source;
float C_inv;
float C_in;
power_usage->dynamic = 0.;
power_usage->leakage = 0.;
C_inv = 0.;
C_in = 0.;
power_calc_transistor_capacitance(&C_drain, &C_source, &C_gate, NMOS,
NMOS_size);
C_inv += C_gate + C_drain;
C_in += C_gate;
power_calc_transistor_capacitance(&C_drain, &C_source, &C_gate, PMOS,
PMOS_size);
C_inv += C_gate + C_drain;
C_in += C_gate;
power_usage->dynamic = power_calc_node_switching(C_inv, in_density, period);
*dyn_power_input = power_calc_node_switching(C_in, in_density, period);
power_usage->leakage = in_probability
* power_calc_leakage_st(PMOS, PMOS_size)
+ (1 - in_probability) * power_calc_leakage_st(NMOS, NMOS_size);
}
/**
* Calculates the power of a wire
* - power_usage: (Return value) Power usage of the wire
* - capacitance: Capacitance of the wire (F)
* - density: Transition density of the wire
*/
void power_usage_wire(t_power_usage * power_usage, float capacitance,
float density, float period) {
power_usage->leakage = 0.;
power_usage->dynamic = power_calc_node_switching(capacitance, density,
period);
}
