| FILTER_THRES | This register is used to filter pluse whose width is smaller than this value for unit0. |
| FILTER_EN | This is the enable bit for filtering input signals for unit0. |
| THR_ZERO_EN | This is the enable bit for comparing unit0’s count with 0 value. |
| THR_H_LIM_EN | This is the enable bit for comparing unit0’s count with thr_h_lim value. |
| THR_L_LIM_EN | This is the enable bit for comparing unit0’s count with thr_l_lim value. |
| THR_THRES0_EN | This is the enable bit for comparing unit0’s count with thres0 value. |
| THR_THRES1_EN | This is the enable bit for comparing unit0’s count with thres1 value . |
| CH0_NEG_MODE | This register is used to control the mode of channel0’s input negedge signal for unit0. 2’d1: increase at the negedge of input signal 2’d2:decrease at the negedge of input signal others:forbidden |
| CH0_POS_MODE | This register is used to control the mode of channel0’s input posedge signal for unit0. 2’d1: increase at the posedge of input signal 2’d2:decrease at the posedge of input signal others:forbidden |
| CH0_HCTRL_MODE | This register is used to control the mode of channel0’s high control signal for unit0. 2’d0:increase when control signal is low 2’d1: decrease when control signal is high others:forbidden |
| CH0_LCTRL_MODE | This register is used to control the mode of channel0’s low control signal for unit0. 2’d0:increase when control signal is low 2’d1: decrease when control signal is high others:forbidden |
| CH1_NEG_MODE | This register is used to control the mode of channel1’s input negedge signal for unit0. 2’d1: increase at the negedge of input signal 2’d2:decrease at the negedge of input signal others:forbidden |
| CH1_POS_MODE | This register is used to control the mode of channel1’s input posedge signal for unit0. 2’d1: increase at the posedge of input signal 2’d2:decrease at the posedge of input signal others:forbidden |
| CH1_HCTRL_MODE | This register is used to control the mode of channel1’s high control signal for unit0. 2’d0:increase when control signal is low 2’d1: decrease when control signal is high others:forbidden |
| CH1_LCTRL_MODE | This register is used to control the mode of channel1’s low control signal for unit0. 2’d0:increase when control signal is low 2’d1: decrease when control signal is high others:forbidden |