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TUSB8020BPHPR Datasheet(PDF) 17 Page - Texas Instruments |
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TUSB8020BPHPR Datasheet(HTML) 17 Page - Texas Instruments |
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17 / 44 page  17 TUSB8020B www.ti.com SLLSEF6C – JULY 2014 – REVISED JUNE 2017 Product Folder Links: TUSB8020B Submit Documentation Feedback Copyright © 2014–2017, Texas Instruments Incorporated 8.5.1.7 Battery Charging Support Register (offset = 6h) [reset = 0Xh] Figure 9. Register Offset 6h 7 6 5 4 3 2 1 0 0 0 0 0 0 0 X X R R/W R/W R/W R/W R/W R/W R/W LEGEND: R/W = Read/Write; R = Read only; –n = value after reset Table 10. Battery Charging Support Register Bit Field Type Reset Description 7:2 RSVD R 0Xh Reserved. Read only, returns 0 when read. 1:0 batEn[1:0] R/W 0Xh Battery Charger Support. The bits in this field indicate whether the downstream port implements the charging port features. 0 = The port is not enabled for battery charging support features 1 = The port is enabled for battery charging support features Each bit corresponds directly to a downstream port, that is batEn0 corresponds to downstream port 1, and batEN1 corresponds to downstream port 2. The default value for these bits are loaded at the deassertion of reset with the value of PWRCTL/BATEN[1:0]. When in I2C/SMBus mode the bits in this field may be overwritten by EEPROM contents or by an SMBus host. 8.5.1.8 Device Removable Configuration Register (offset = 7h) [reset = 0Xh] Figure 10. Register Offset 7h 7 6 5 4 3 2 1 0 0 0 0 0 0 0 X X R/W R R R R R R R/W LEGEND: R/W = Read/Write; R = Read only; –n = value after reset Table 11. Device Removable Configuration Register Bit Field Type Reset Description 7 customRmbl R/W 0Xh Custom removable status. When this field is a 1, the TUSB8020B uses rmbl bits in this register to identify removable status for the ports. 6:2 RSVD R 0Xh Reserved. Read only, returns 0 when read. Bits 3:2 are RW. They are reserved and return 0 when read. 1:0 rmbl[1:0] R/W 0Xh Removable. The bits in this field indicate whether a device attached to downstream ports 2 through 1 are removable or permanently attached. 0 = The device attached to the port is not removable 1 = The device attached to the port is removable Each bit corresponds directly to a downstream port n + 1, that is rmbl0 corresponds to downstream port 1, rmbl1 corresponds to downstream port 2, and so forth. This field is read only unless the customRmbl bit is set to 1. Otherwise the value of this filed reflects the inverted values of the OTP ROM non_rmb[1:0] field. |
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