PLA_CPCR
ocp_word_set_bits(tp, MCU_TYPE_PLA, PLA_CPCR,
ocp_word_clr_bits(tp, MCU_TYPE_PLA, PLA_CPCR,
ocp_word_set_bits(tp, MCU_TYPE_PLA, PLA_CPCR, FLOW_CTRL_EN);