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34708 Datasheet(PDF) 138 Page - Freescale Semiconductor, Inc |
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34708 Datasheet(HTML) 138 Page - Freescale Semiconductor, Inc |
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138 / 159 page  Analog Integrated Circuit Device Data Freescale Semiconductor 138 MC34708 Functional Block Description SWITCH_OPEN 3 R/W MUSBRSTB 0x1 Switch connection selection 0: Open all switches 1: Switch selection according to the Manual S/W bit. RESET 4 RWM MUSBRSTB 0x0 Soft reset. When written to 1, the IC is reset. Once the reset is complete, the RST bit is set and the RESET bit is cleared automatically. 1: to soft-reset the IC TTY_SPKL 5 R/W MUSBRSTB 0x0 SPK_L to DM switch control 0: Turn off the SPK_L to DM switch 1: Turn on the SPK_L to DM switch for TTY RST 6 R/C MUSBRSTB X This bit indicates if a chip reset has occurred. This bit will be cleared once being read. 0: no. 1: Yes. ACTIVE 7 R/W MUSBRSTB X Indicate either the device is in Active mode 0: Standby 1: Active CLK_RST 8 R/C MUSBRST 0x1 Not available VOTGEN 9 R/W RESETB 0x0 Enables the OTG switch and the GOTG switch Unused 10 R 0x0 Not available Reserved 11 R NONE 0x0 Reserved SWHOLD 12 R/W MUSBRSTB 0x1 Switch Hold 0: Run state machine and allow detection of accessory 1: Holds off state machine until baseband comes up Reserved 14-13 R NONE 0x0 Reserved VBUS SWITCHING[1:0] 16-15 R/W MUSBRSTB 0x0 VBUS line switching configuration when Manual S/W = 0 00: open all switches MOTG, M0 01: N/A 10: VBUS connects to MIC. M0, MOTG. Others: open all switches connected to the VBUS line DP SWITCHING[2:0] 19-17 R/W MUSBRSTB 0x0 DP line switching configuration when Manual S/W = 0 000: open all switches 001: DP connected to D+, DM connected to D- 010: DP connected to SPK_R, DM connected to SPK_L 011: DP connected to RxD, DM connected to TxD Others: open all switches connected to the DP pin and DM pin DM SWITCHING[2:0] 22-20 R/W MUSBRSTB 0x0 DM line switching configuration when Manual S/W = 0 000: open all switches 001: DP connected to D+, DM connected to D- 010: DP connected to SPK_R, DM connected to SPK_L 011: DP connected to RxD, DM connected to TxD Others: open all switches connected to the DP pin and DM pin READVALID 23 R MUSBRSTB 0x0 Read data valid 0: Data not valid 1: Data valid Table 144. Register 39, USB Control Name Bit # R/W Reset Default Description |
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