SPRUJ52C june 2022 – july 2023 AM69 , AM69A , TDA4AH-Q1 , TDA4AP-Q1 , TDA4VH-Q1 , TDA4VP-Q1
This chapter details the USB subsystem environment.
Table 12-193 describes the external signals of the USB3SS0 subsystem.
Device Pin | I/O(1) | Description |
---|---|---|
USB0_DP | I/O | USB2.0 data pins. These are HS/FS/LS bidirectional differential data lane (D+/D-) |
USB0_DM | I/O | |
USB0_RX1_P (USB0_RX0_P) or(2) USB3_RX1_P (USB3_RX0_P) |
I | USB3.0 differential data receive lane (RX+ pin) |
USB0_RX1_N (USB0_RX0_N) or(2) USB3_RX1_N (USB3_RX0_N) |
I | USB3.0 differential data receive lane (RX- pin) |
USB0_TX1_P (USB0_TX0_P) or(2) USB3_TX1_P (USB3_TX0_P) |
O | USB3.0 differential data transmit lane (TX+ pin) |
USB0_TX1_N (USB0_TX0_N) or(2) USB3_TX1_N (USB3_TX0_N) |
O | USB3.0 differential data transmit lane (TX- pin) |
USB0_REXT or(2) USB3_REXT |
A/I | USB3.0 SerDes external calibration resistor. Requires a 3.01 kOhm ±1% accurate off-chip resistor connected from this pin to ground. |
USB0_ID | A/I | USB cable identifier (A/B-device). Analog ID pin sense with internal pull-up |
USB0_VBUS | A/I | An 3.3-V analog input for monitoring the voltage on VBUS (VBUS sense). 5-V VBUS must be applied via an external resistive divider /3. For example, R1 = 20 kOhm and R2 = 10 kOhm |
USB0_DRVVBUS | O | A digital output signal for VBUS Power Supply Enabling. Used to enable an external charge pump or power switch to supply +5V power to the VBUS port, when appropriate |
USB0_RCALIB | A/I | External resistor for USB2.0 PHY calibration. Requires a 500 Ohm ±1% off-chip resistor connected from this pin to ground |
Table 12-194 describes the external signals of the USB3SS1 subsystem.
Device Pin | I/O(1) | Description |
---|---|---|
USB1_DP | I/O | USB2.0 data pins. These are HS/FS/LS bidirectional differential data lane (D+/D-) |
USB1_DM | I/O | |
USB1_RX1_P (USB1_RX0_P) or(2) USB2_RX1_P (USB2_RX0_P) |
I | USB3.0 differential data receive lane (RX+ pin) |
USB1_RX1_N (USB1_RX0_N) or(2) USB2_RX1_N (USB2_RX0_N) |
I | USB3.0 differential data receive lane (RX- pin) |
USB1_TX1_P (USB1_TX0_P) or(2) USB2_TX1_P (USB2_TX0_P) |
O | USB3.0 differential data transmit lane (TX+ pin) |
USB1_TX1_N (USB1_TX0_N) or(2) USB2_TX1_N (USB2_TX0_N) |
O | USB3.0 differential data transmit lane (TX- pin) |
USB1_REXT or(2) USB2_REXT |
A/I | USB3.0 SerDes external calibration resistor. Requires a 3.01 kOhm ±1% accurate off-chip resistor connected from this pin to ground. |
USB1_ID | A/I | USB cable identifier (host/device). Analog ID pin sense with internal pull-up |
USB1_VBUS | A/I | An 3.3-V analog input for monitoring the voltage on VBUS (VBUS sense). 5-V VBUS must be applied via an external resistive divider /3. For example, R1 = 20 kOhm and R2 = 10 kOhm |
USB1_DRVVBUS | O | A digital output signal for VBUS Power Supply Enabling. Used to enable an external charge pump or power switch to supply +5V power to the VBUS port, when appropriate |
USB1_RCALIB | A/I | External resistor for USB2.0 PHY calibration. Requires a 500 Ohm ±1% off-chip resistor connected from this pin to ground |