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USB3300 Datasheet(PDF) 39 Page - SMSC Corporation |
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USB3300 Datasheet(HTML) 39 Page - SMSC Corporation |
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39 / 55 page ![]() Hi-Speed USB Host, Device or OTG PHY with ULPI Low Pin Interface Datasheet SMSC USB3300 39 Revision 1.08 (11-07-07) DATASHEET by the Link. The state of the resistors is determined by the operating mode of the PHY. The possible valid resistor combinations are shown in Table 6.8, "DP/DM termination vs. Signaling Mode". Operation is guaranteed in the configurations given in the table below. RPU_DP_EN activates the 1.5kΩ DP pull-up resistor RPU_DM_EN activates the 1.5kΩ DM pull-up resistor RPD_DP_EN activates the 15kΩ DP pull-down resistor RPD_DM_EN activates the 15kΩ DM pull-down resistor HSTERM_EN activates the 45Ω DP and DM high speed termination resistors Table 6.8 DP/DM termination vs. Signaling Mode SIGNALING MODE REGISTER SETTINGS RESISTOR SETTINGS General Settings Tri-State Drivers XXb Xb 01b Xb Xb 0b0b0b0b0b Power-up or Vbus < VSESSEND 01b 0b 00b1b 1b 0b0b1b1b0b Host Settings Host Chirp 00b 0b 10b1b 1b 0b0b1b1b1b Host Hi-Speed 00b 0b 00b1b 1b 0b0b1b1b1b Host Full Speed X1b 1b 00b1b 1b 0b0b1b1b0b Host HS/FS Suspend 01b 1b 00b1b 1b 0b0b1b1b0b Host HS/FS Resume 01b 1b 10b1b 1b 0b0b1b1b0b Host low Speed 10b 1b 00b1b 1b 0b0b1b1b0b Host LS Suspend 10b 1b 00b 1b 1b 0b 0b 1b 1b 0b Host LS Resume 10b 1b 10b1b 1b 0b0b1b1b0b Host Test J/Test_K 00b 0b 10b1b 1b 0b0b1b1b1b Peripheral Settings Peripheral Chirp 00b 1b 10b 0b 0b 1b 0b 0b 0b 0b Peripheral HS 00b 0b 00b 0b 0b 0b 0b 0b 0b 1b Peripheral FS 01b 1b 00b 0b 0b 1b 0b 0b 0b 0b Peripheral HS/FS Suspend 01b 1b 00b 0b 0b 1b 0b 0b 0b 0b Peripheral HS/FS Resume 01b 1b 10b 0b 0b 1b 0b 0b 0b 0b Peripheral LS 10b 1b 00b 0b 0b 0b 1b 0b 0b 0b Peripheral LS Suspend 10b 1b 00b 0b 0b 0b 1b 0b 0b 0b |
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