OMAP3503DCBBA Datasheet, PDF (218/264 Pages) Texas Instruments – OMAP3515 and OMAP3503 Applications Processors

OMAP3515, OMAP3503
SPRS505H – FEBRUARY 2008 – REVISED OCTOBER 2013
www.ti.com
Table 6-85. Low-/Full-Speed USB Switching Characteristics – Bidirectional Standard 3-pin Mode
NO.
FSU21
FSU22
FSU23
t_{d(TXENL-DATV)}
t_{d(TXENL-SE0V)}
t_s(DAT-SE0)
FSU24 t_{d(DATI-TXENH)}
FSU25 t_{d(SE0I-TXENH)}
t_R(do)
t_F(do)
t_R(do)
t_F(do)
t_R(do)
t_F(do)
PARAMETER
Delay time, mmx_txen_n low to mmx_txdat valid
Delay time, mmx_txen_n low to mmx_txse0 valid
Skew between mmx_txdat and mmx_txse0
transition
Delay time, mmx_txdat invalid to mmx_txen_n
high
Delay time, mmx_txse0 invalid to mmx_txen_n
high
Rise time, mmx_txen_n
Fall time, mmx_txen_n
Rise time, mmx_txdat
Fall time, mmx_txdat
Rise time, mmx_txse0
Fall time, mmx_txse0
1.15 V
MIN
MAX
81.8
84.8
81.8
84.8
1.5
81.8
81.8
4.0
4.0
4.0
4.0
4.0
4.0
1.0 V
MIN
MAX
81.8
84.8
81.8
84.8
1.5
81.8
81.8
4.0
4.0
4.0
4.0
4.0
4.0
UNIT
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
mmx_txen_n
mmx_txdat
mmx_txse0
FSU21
FSU22
Transmit
FSU23
FSU24
FSU25
Receive
FSU19
FSU19
In mmx, x is equal to 0, 1, or 2.
Figure 6-45. Low-/Full-Speed USB – Bidirectional Standard 3-pin Mode
FSU20
FSU20
030-082
6.6.3.4 Multiport Full-Speed Universal Serial Bus (USB) – Unidirectional TLL 6-pin Mode
Table 6-87 and Table 6-88 assume testing over the recommended operating conditions (see Figure 6-46).
Table 6-86. Low-/Full-Speed USB Timing Conditions – Unidirectional TLL 6-pin Mode
TIMING CONDITION PARAMETER
Input Conditions
t_R
t_F
Output Conditions
Input signal rise time
Input signal fall time
C_LOAD
Output load capacitance
VALUE
2
2
15
UNIT
ns
ns
pF
NO.
FSUT1
FSUT2
Table 6-87. Low-/Full-Speed USB Timing Requirements – Unidirectional TLL 6-pin Mode
t_d(SE0,DAT)
t_d(SE0,DAT)
PARAMETER
Time duration, mmx_txse0 and mmx_txdat low
together during transition
Time duration, mmx_txse0 and mmx_txdat high
together during transition
1.15 V
MIN
MAX
14
8
1.0 V
MIN
MAX
14
8
UNIT
ns
ns
218 TIMING REQUIREMENTS AND SWITCHING CHARACTERISTICS
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