Alcor Micro AU9216, Technical Reference Manual

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10 PIN ASSIGNMENT
Table 3-2 (continued). Pin Descriptions for the 52-pin QFP
Pin # Pin Name I/O Description
45 VCC PWR +5V power supply.
46 N/C - No connection.
47 USB_DP I/O
USB D+ for upstream port. Need external 1.5K
Ω
pull-
up to 3.3V.
48 USB_DM I/O USB D- for upstream port.
49 UPPORT_LED O Upstream port LED. Active low when upstream port
enabled.
50 USB1_DP I/O USB D+ for downstream port 1, add 15K
Ω
pull-down to
ground.
51 USB1_DM I/O
USB D- for downstream port 1, add 15K
Ω
pull-down to
ground.
52 DP1_LED O Downstream port 1 LED. Active low when port 1
enabled.