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MIC2555-0BML Datasheet(PDF) 24 Page - Micrel Semiconductor |
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MIC2555-0BML Datasheet(HTML) 24 Page - Micrel Semiconductor |
24 / 29 page Micrel, Inc. MIC2555 December 2006 24 M9999-121406 Interrupt Source Register Interrupt Status rd - 08h Indicates the current state of signals that can generate an interrupt. vbus_vld 1 rd bit 0 1 = VBUS > 4.4V (VBUS valid comparator) sess_vld 1 rd bit 1 1 = 0.8V< VBUS< 2.0V. (Session valid comparator) se_dp 1 rd bit 2 1 = D+ pin is HIGH id_gnd_in 1 rd bit 3 1 = ID pin grounded se_dm 1 rd bit 4 1 = D- pin is HIGH id_float 1 rd bit 5 1 = ID pin floating bdis_acon (sess_end) 1 rd bit 6 If: bdis_acon_en = 1 1 = SE0 has been detected, transceiver asserted dp_pullup after detecting B-device disconnect. If bdis_acon_en = 0, sess_end_en = 1 1 = VBUS < 0.8V. (Session End comparator output = TRUE) cr_int 1 rd bit 7 1 = car kit interrupt, D+ pin has seen a pulse above the interrupt level Interrupt Latch 1 Interrupt Source set –0Ah clr – 0Bh Indicates which sources have interrupted. 1 = interrupt. Vbus_vld 1 rd/s/c bit 0 sess_vld 1 rd/s/c bit 1 se_dp 1 rd/s/c bit 2 id_gnd_in 1 rd/s/c bit 3 se_dm 1 rd/s/c bit 4 id_float 1 rd/s/c bit 5 bdis_acon (sess_end) 1 rd/s/c bit 6 cr_int 1 rd/s/c bit 7 Interrupt Mask False False Interrupt Mask set – 0Ch clr – 0Dh Enables interrupts on transition from TRUE to FALSE 1 set = 1, Interrupt on T F. 1 clr = 0, no interrupt. Vbus_vld 1 rd/s/c bit 0 sess_vld 1 rd/s/c bit 1 se_dp 1 rd/s/c bit 2 id_gnd_in 1 rd/s/c bit 3 se_dm 1 rd/s/c bit 4 id_float 1 rd/s/c bit 5 bdis_acon (sess_end) 1 rd/s/c bit 6 cr_int 1 rd/s/c bit 7 |
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