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SPEAR320S 数据表(PDF) 34 Page - STMicroelectronics |
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SPEAR320S 数据表(HTML) 34 Page - STMicroelectronics |
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34 / 113 page  Pin description SPEAr320S 34/113 Doc ID 022508 Rev 2 Table 10. USB pins description Group Signal name Description Dir. Pin type Ball USB Device USB_DEVICE_DP USB Device D+ IO Bidirectional analog buffer 5 V tolerant M1 USB_DEVICE_DM USB Device D- M2 USB_DEVICE_VBUS USB Device VBUS I TTL input buffer 3.3 V tolerant, PD G3 USB Host USB_HOST1_DP USB Host1 D+ IO Bidirectional analog buffer 5 V tolerant H1 USB_HOST1_DM USB Host1 D- H2 USB_HOST1_VBUS USB Host1 VBUS O TTL output buffer 3.3 V capable, 4 mA H3 USB_HOST1_OVERCUR USB Host1 Over-Current I TTL input buffer 3.3 V tolerant, PD J4 USB_HOST0_DP USB Host0 D+ IO Bidirectional analog buffer 5 V tolerant K1 USB_HOST0_DM USB Host0 D- K2 USB_HOST0_VBUS USB Host0 VBUS O TTL output buffer 3.3 V capable, 4 mA J3 USB_HOST0_OVERCUR USB Host0 Over-current I TTL Input Buffer 3.3 V tolerant, PD H4 USB USB_TXRTUNE Reference resistor O Analog K5 USB_ANALOG_TEST Analog test output O Analog L4 Table 11. ADC pins description Signal name Description Dir. Pin type Ball AIN_0 ADC analog input channel I Analog buffer 2.5 V tolerant N16 AIN_1 N15 AIN_2 P17 AIN_3 P16 AIN_4 P15 AIN_5 R17 AIN_6 R16 AIN_7 R15 ADC_VREFN ADC negative voltage reference N14 ADC_VREFP ADC positive voltage reference P14 |
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