Datasheet

TUSB9261
SLLSE67F –MARCH 2011–REVISED JULY 2013 www.ti.com
Table 5-4. USB Interface Signals
TERMINAL
I/O DESCRIPTION
PIN
NAME
NO.
USB_SSTXP 43 O SuperSpeed USB transmitter differential pair (positive)
USB_SSTXM 42 O SuperSpeed USB transmitter differential pair (negative)
USB_SSRXP 46 I SuperSpeed USB receiver differential pair (positive)
USB_SSRXM 45 I SuperSpeed USB receiver differential pair (negative)
USB_DP 36 I/O USB High-speed differential transceiver (positive)
USB_DM 35 I/O USB High-speed differential transceiver (negative)
USB_VBUS 50 I USB bus power
USB_R1 38 O Precision resistor reference. A 10-kΩ ±1% resistor should be connected between R1 and R1RTN.
USB_R1RTN 39 I Precision resistor reference return
Table 5-5. Serial Peripheral Interface (SPI) Signals
TERMINAL
I/O DESCRIPTION
PIN
NAME
NO.
O
SPI_SCLK 17 SPI clock
PU
O
SPI_DATA_OUT 18 SPI master data out
PU
I
SPI_DATA_IN 20 SPI master data in
PU
O
SPI_CS0 21 Primary SPI chip select for Flash RAM
PU
SPI_CS2/
I/O SPI chip select for additional peripherals. When not used for SPI chip select this pin may be used
23
PU as general purpose I/O.
GPIO11
SPI_CS1/
I/O SPI chip select for additional peripherals. When not used for SPI chip select this pin may be used
22
PU as general purpose I/O.
GPIO10
14 SIGNAL DESCRIPTIONS Copyright © 2011–2013, Texas Instruments Incorporated
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