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FUSB302TMPX Datasheet(PDF) 22 Page - ON Semiconductor |
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FUSB302TMPX Datasheet(HTML) 22 Page - ON Semiconductor |
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22 / 36 page ![]() 21 Table 7. Switches1 - Address: 03h - Reset Value: 0x0010_0000 - Type: Read/Write Bit # Name R/W/C Size (Bits) Description 7 POWERROLE R/W 1 Bit used for constructing the GoodCRC acknowledge packet. This bit corresponds to the Port Power Role bit in the message header if an SOP packet is received 1: Source if SOP 0: Sink if SOP 6:5 SPECREV1: SPECREV0 R/W 2 Bit used for constructing the GoodCRC acknowledge packet. These bits correspond to the Specification Revision bits in the message header 00: Revision 1.0 01: Revision 2.0 10, 11: Do Not Use 4 DATAROLE R/W 1 Bit used for constructing the GoodCRC acknowledge packet. This bit corresponds to the Port Data Role bit in the message header. For SOP: 1: SRC 0: SNK 3 Reserved N/A 1 Do Not Use 2 AUTO_CRC R/W 1 1: Starts the transmitter automatically when a message with a good CRC is received and automatically sends a GoodCRC acknowledge packet back to the relevant SOP* 0: Feature disabled. 1 TXCC2 R/W 1 1: Enable BMC transmit driver on CC2 pin. 0 TXCC1 R/W 1 1: Enable BMC transmit driver on CC1 pin. Table 8. Measure - Address: 04h - Reset Value: 0x0011_0001 - Type: Read/Write Bit # Name R/W/C Size (Bits) Description 7 Reserved N/A 1 Do Not Use 6 MEAS_VBUS R/W 1 0: MDAC/comparator measurement is controlled by MEAS_CC* bits. 1: Measure VBUS with the MDAC/comparator. This requires MEAS_CC* bits to be 0. 5:0 MDAC[5:0] R/W 6 Measure Block DAC data input. LSB is equivalent to 42 mV of voltage which is compared to the measured CC voltage. The measured CC is selected by MEAS_CC2, or MEAS_CC1 bits. MDAC[5:0] MEAS_VBUS=0 MEAS_VBUS=1 Unit 00_0000 0.042 0.420 V 00_0001 0.084 0.840 V 11_0000 2.058 20.58 V 11_0011 2.184 21.84 V 11_1110 2.646 26.46 V 11_1111 >2.688 26.88 V |
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