OMAP3530_14 Datasheet, PDF (218/266 Pages) Texas Instruments – Applications Processors

OMAP3530, OMAP3525
SPRS507H – FEBRUARY 2008 – REVISED OCTOBER 2013
www.ti.com
Table 6-82. Low-/Full-Speed USB Switching Characteristics – Bidirectional Standard 4-pin
Mode (continued)
NO.
FSU18 t_{d(SE0V-TXENH)}
t_R(txen)
t_F(txen)
t_R(dat)
t_F(dat)
t_R(se0)
t_F(se0)
PARAMETER
Delay time, mmx_txse0 invalid before 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
4.0
4.0
4.0
4.0
4.0
4.0
1.0 V
MIN
MAX
81.8
4.0
4.0
4.0
4.0
4.0
4.0
UNIT
ns
ns
ns
ns
ns
ns
ns
mmx_txen_n
mmx_txdat
mmx_txse0
mmx_rxrcv
FSU14
FSU15
Transmit
FSU16
FSU17
FSU18
Receive
FSU10
FSU10
FSU12
In mmx, x is equal to 0, 1, or 2.
Figure 6-44. Low-/Full-Speed USB – Bidirectional Standard 4-pin Mode
FSU11
FSU11
FSU13
030-081
6.6.3.3 Multiport Full-Speed Universal Serial Bus (USB) – Bidirectional Standard 3-pin Mode
Table 6-84 and Table 6-85 assume testing over the recommended operating conditions below (see
Figure 6-45).
Table 6-83. Low-/Full-Speed USB Timing Conditions – Bidirectional Standard 3-pin Mode
Input Conditions
t_R
t_F
Output Conditions
C_LOAD
TIMING CONDITION PARAMETER
Input signal rise time
Input signal fall time
Output load capacitance
VALUE
2.0
2.0
15.0
UNIT
ns
ns
pF
Table 6-84. Low-/Full-Speed USB Timing Requirements – Bidirectional Standard 3-pin Mode
NO.
FSU19 t_d(DAT,SE0)
FSU20 t_d(DAT,SE0)
PARAMETER
Time duration, mmx_txdat and mmx_txse0 low together
during transition
Time duration, mmx_tsdat and mmx_txse0 high
together during transition
1.15 V
MIN
MAX
14.0
8.0
1.0 V
MIN
MAX
14.0
8.0
UNIT
ns
ns
218 TIMING REQUIREMENTS AND SWITCHING CHARACTERISTICS
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