Datasheet
TUSB1310A
www.ti.com
SLLSE32E –NOVEMBER 2010–REVISED JULY 2012
Table 2-2. PIPE Signal Description (continued)
SIGNAL NAME TYPE BALL NO. DESCRIPTION
Active High. Used to communicate completion of several PHY functions including power
S, I/O, management state transitions, rate change, and receiver detection. When this signal
PHY_STATUS E3
PD transitions during entry and exit from P3 and PCLK is not running, then the signaling is
asynchronous.
PWRPRESENT O H11 Indicates the presence of VBUS
CONFIGURATION PINS
Active High. Used only when transmitting USB compliance pat-terns CP7 or CP8. Causes
TX_ONESZEROS I, PD M4 the transmitter to transmit an alternating sequence of 50 - 250 ones and 50 - 250 zeros –
regardless of the state of the TX_DATA interface.
Selects transmitter de-emphasis. When the MAC changes, the TUSB1310A starts to
TX_DEEMPH1 K11
transmit with the new setting within 128 ns.
I, PD, PU
TX_DEEMPH0 L11 BIT 1 BIT 0 DESCRIPTION
0 0 -6 dB de-emphasis
0 1 -3.5 dB de-emphasis
1 0 No de-emphasis
1 1 Reserved
TX_MARGIN2 M11 Selects transmitter voltage levels
TX_MARGIN1 M10 BIT 2 BIT 1 BIT 0 TX_SWING DESCRIPTION
I, PD
Normal operating range
TX_MARGIN0 M9 0 0 0 0
800 mV - 1200 mV
Normal operating range
0 0 0 1
400 mV - 700 mV
0 800 mV - 1200 mV
0 0 1
1 400 mV - 700 mV
0 700 mV - 900 mV
0 1 0
1 300 mV - 500 mV
0 400 mV - 600 mV
0 1 1
1 200 mV - 400 mV
1 0 200 mV - 400 mV
Don't care
1 1 100 mV - 200 mV
Controls transmitter voltage swing level
TX_SWING I, PD M5 0 Full swing
1 Half swing
Active High. Tells PHY to do a polarity inversion on the received data. Inverted data show
up on RX_DATA15-0 within 20 PCLK clocks after RX_POLARITY is asserted.
RX_POLARITY I, PD C8
0 PHY does no polarity inversion.
1 PHY does polarity inversion.
Controls presence of receiver terminations
RX_TERMINATION I, PD D3 0 Terminations removed
1 Terminations present
Controls the link signaling rate
RATE I, PU L6
The RATE is always 1.
Selects elasticity buffer operating mode
ELAS_BUF_MODE I, PD C9 0 Nominal half full buffer mode
1 Nominal empty buffer mode
Copyright © 2010–2012, Texas Instruments Incorporated PIN DESCRIPTIONS 11
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