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Zakładka z wyszukiwarką danych komponentów |
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Zakładka z wyszukiwarką danych komponentów |
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STUSB1600 Arkusz danych(PDF) 23 Page - STMicroelectronics |
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STUSB1600 Arkusz danych(HTML) 23 Page - STMicroelectronics |
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23 / 69 page  DocID028937 Rev 1 23/69 STUSB1600 Features description 69 • In source power role, a debug accessory device is detected when both the CC1 and CC2 pins are pulled down to ground by an Rd resistor from the connected device. The orientation detection is performed in two steps as described in the table below. The DEBUG2 pin is asserted to advertise the DTS detection and the A_B_SIDE pin indicates the orientation of the connection. The orientation detection is advertised through the TYPEC_FSM_STATE bits of the I2C register CC_OPERATION_STATUS (see Section 5.1: Register description). Table 11. Orientation detection in source power role # CC1 pin (CC2 pin) CC2 pin (CC1 pin) Detection process A_B_SIDE pin CC1/CC2 (CC2/CC1) Orientation detection state TYPEC_FSM_STATE bits value 1Rd Rd 1st step: debug accessory mode detected HiZ (HiZ) UnorientedDebugAccessory.SRC 2Rd ≤ Ra 2nd step: orientation detected (DTS presents a resistance to GND with a value ≤ Ra on its CC2 pin) HiZ (0) OrientedDebugAccessory.SRC |
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