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전자부품 데이터시트 검색엔진 |
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전자부품 데이터시트 검색엔진 |
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TMS320DM355CZCEA13 데이터시트(PDF) 134 Page - Texas Instruments |
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TMS320DM355CZCEA13 데이터시트(HTML) 134 Page - Texas Instruments |
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134 / 163 page  tr tf VCRS 90%VOH 10%VOL USB_DM USB_DP tper − tjr TMS320DM355 SPRS463G – SEPTEMBER 2007 – REVISED JUNE 2010 www.ti.com 5.10 USB 2.0 The DM355 USB2.0 peripheral supports the following features: • USB 2.0 peripheral at speeds high speed (HS: 480 Mb/s) and full speed (FS: 12 Mb/s) • USB 2.0 host at speeds HS, FS, and low speed (LS: 1.5 Mb/s) • All transfer modes (control, bulk, interrupt, and isochronous) • Four Transmit (TX) and four Receive (RX) endpoints in addition to endpoint 0 • FIFO RAM – 4K bytes shared by all endpoints. – Programmable FIFO size • Includes a DMA sub-module that supports four TX and four RX channels of CPPI 3.0 DMAs • RNDIS mode for accelerating RNDIS type protocols using short packet termination over USB • USB OTG extensions, i.e. session request protocol (SRP) and host negotiation protocol (HNP) The DM355 USB2.0 peripheral does not support the following features: • On-chip charge pump • High bandwidth ISO mode is not supported (triple buffering) • RNDIS mode acceleration for USB sizes that are not multiples of 64 bytes • Endpoint max USB packet sizes that do not conform to the USB 2.0 spec (for FS/LS: 8, 16, 32, 64, and 1023 are defined; for HS: 64, 128, 512, and 1024 are defined) 5.10.1 USB2.0 Electrical Data/Timing Table 5-25. Switching Characteristics Over Recommended Operating Conditions for USB2.0 (see Figure 5-33) DM355 LOW SPEED FULL SPEED HIGH SPEED(1) NO. PARAMETER UNIT 1.5 Mbps 12 Mbps 480 Mbps MIN MAX MIN MAX MIN MAX 1 tr(D) Rise time, USB_DP and USB_DM signals(2) 75 300 4 20 0.5 ns 2 tf(D) Fall time, USB_DP and USB_DM signals(2) 75 300 4 20 0.5 ns 3 tfrfm Rise/Fall time, matching(3) 80 125 90 111.11 % 4 VCRS Output signal cross-over voltage(2) 1.3 2 1.3 2 V 5 tjr(source)NT Source (Host) Driver jitter, next transition 2 2 ns tjr(FUNC)NT Function Driver jitter, next transition 25 2 ns 6 tjr(source)PT Source (Host) Driver jitter, paired transition(4) 1 1 ns tjr(FUNC)PT Function Driver jitter, paired transition 10 1 ns 7 tw(EOPT) Pulse duration, EOP transmitter 1250 1500 160 175 ns 8 tw(EOPR) Pulse duration, EOP receiver 670 82 ns 9 t(DRATE) Data Rate 1.5 12 480 Mb/s 10 ZDRV Driver Output Resistance – – 28 49.5 40.5 49.5 Ω (1) For more detailed specification information, see the Universal Serial Bus Specification Revision 2.0, Chapter 7. Electrical. (2) Low Speed: CL = 200 pF, Full Speed: CL = 50 pF, High Speed: CL = 50 pF (3) tfrfm = (tr/tf) x 100. [Excluding the first transaction from the Idle state.] (4) tjr = tpx(1) - tpx(0) Figure 5-33. USB2.0 Integrated Transceiver Interface Timing 134 DM355 Peripheral Information and Electrical Specifications Copyright © 2007–2010, Texas Instruments Incorporated Submit Documentation Feedback Product Folder Link(s): TMS320DM355 |
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