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μ
PD720231
7. How to Connect to External Elements
7.1 Handling Unused Pins
Unused pins shall be connected as shown below.
If the USB to SATA bridge system needs only USB2.0 (High/Full-speed), but not USB3.0 (SuperSpeed),
unused pins related to SuperSpeed shall be handled as shown below.
R19UH0094EJ0100 Rev 1.00
Mar 1, 2013
Table 7-1.
Pin
GPIO0/SPISO,
GPIO1/SPISCK,
GPIO2/SPISI,
GPIO3/SPICSB
GPIO4,
GPIO7/CLKOUT,
GPIO8, GPIO9/EXTINT
GPIO5, GPIO6/ACT
Pin
U3RXP
U3RXN
U3TXP
U3TXN
7. How to Connect to External Elements
Unused Pin Connection
Direction
Connection Method
I/O
Please refer to Table 5-1
I/O
Open
I/O
Pull-up or down on board.
Direction
Connection Method
I
Open
I
Open
O
Open
O
Open
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