OMAP3530ECBC datasheet(216/264 Pages) TI1

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mmx_txen_n

mmx_txdat

mmx_txse0

mmx_rxdp

mmx_rxdm

mmx_rxrcv

FSU5

FSU6

FSU7

FSU1

FSU2

FSU3

FSU4

FSU8

FSU9

Transmit

Receive

030-080

6.6.3.2 Multiport Full-Speed Universal Serial Bus (USB) – Bidirectional Standard 4-pin Mode

OMAP3530/25 Applications Processor

SPRS507F – FEBRUARY 2008 – REVISED OCTOBER 2009

www.ti.com

In mmx, x is equal to 0, 1, or 2.

Figure 6-43. Low-/Full-Speed USB – Unidirectional Standard 6-pin Mode

Table 6-81 and Table 6-82 assume testing over the recommended operating conditions (see Figure 6-44).

Table 6-80. Low-/Full-Speed USB Timing Conditions – Bidirectional Standard 4-pin Mode

TIMING CONDITION PARAMETER

VALUE

UNIT

Input Conditions

Input signal rise time

2.0

Input signal fall time

2.0

Output Conditions

CLOAD

Output load capacitance

15.0

Table 6-81. Low-/Full-Speed USB Timing Requirements – Bidirectional Standard 4-pin Mode

NO.

PARAMETER

1.15 V

1.0 V

UNIT

MIN

MAX

MIN

MAX

FSU10

td(DAT,SE0)

Time duration, mmx_txdat and mmx_txse0 low together

14.0

during transition

FSU11

td(DAT,SE0)

Time duration, mmx_txdat and mmx_txse0 high together

8.0

during transition

FSU12

td(RCVU0)

Time duration, mmx_rrxcv undefine during a single end 0

14.0

(mmx_txdat and mmx_txse0 low together)

FSU13

td(RCVU1)

Time duration, mmx_rxrcv undefine during a single end 1

8.0

(mmx_txdat and mmx_txse0 high together)

Table 6-82. Low-/Full-Speed USB Switching Characteristics – Bidirectional Standard 4-pin Mode

NO.

PARAMETER

1.15 V

1.0 V

UNIT

MIN

MAX

MIN

MAX

FSU14

td(TXENL-DATV)

Delay time, mmx_txen_n low to mmx_txdat valid

81.8

84.8

81.8

84.8

FSU15

td(TXENL-SE0V)

Delay time, mmx_txen_n low to mmx_txse0 valid

81.8

84.8

81.8

84.8

FSU16

ts(DAT-SE0)

Skew between mmx_txdat and mmx_txse0

1.5

transition

FSU17

td(DATV-TXENH)

Delay time, mmx_txdat invalid before mmx_txen_n

81.8

high

TIMING REQUIREMENTS AND SWITCHING CHARACTERISTICS

216

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