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UCS1002-3 Datasheet(PDF) 46 Page - Microchip Technology |
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UCS1002-3 Datasheet(HTML) 46 Page - Microchip Technology |
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46 / 114 page  UCS1002-3 DS20006852A-page 46 2023 Microchip Technology Inc. and its subsidiaries 10.0 REGISTER DESCRIPTION The registers shown in Table 10-1 are accessible through the SMBus or I2C. An entry of ‘-’ indicates that the bit is not used. Writing to these bits will have no effect and reading these bits will return ‘0’. An entry of RES indicates that the bit is reserved. Writing to a RES bit may cause unexpected results and reading from a RES bit will return either ‘1’ or ‘0’ as indicated in the bit description. While in the Sleep state, the UCS1002-3 retains configuration and charge rationing data as indi- cated in the text. If a register does not indicate that data is retained in the Sleep power state, this information is lost when the UCS1002-3 enters the Sleep power state. TABLE 10-1: REGISTER SET IN HEXADECIMAL ORDER Register Address Register Name R/W Function Default Value Page No. 00h Current Measurement R Stores the current measurement 00h 48 01h Total Accumulated Charge High Byte R Stores the total accumulated charge delivered high byte 00h 49 02h Total Accumulated Charge Middle High Byte R Stores the total accumulated charge delivered middle high byte 00h 49 03h Total Accumulated Charge Middle Low Byte R Stores the total accumulated charge delivered middle low byte 00h 49 04h Total Accumulated Charge Low Byte R Stores the total accumulated charge delivered low byte 00h 49 0Fh Other Status R Indicates emulation status as well as the ALERT# and A_DET# pin status 00h 50 10h Interrupt Status See Register 10-3 Indicates why ALERT# pin asserted 00h 51 11h General Status R/R-C Indicates general status 00h 52 12h Profile Status 1 R Indicates which charger emulation profile is accepted 00h 53 13h Profile Status 2 R 00h 54 14h Pin Status R Indicates the pin states of the internal control pins 00h 55 15h General Configuration R/W Controls basic functionality 01h 56 16h Emulation Configuration R/W Controls emulation functionality 8Ch 57 17h Switch Configuration R/W Controls advanced switch functions 04h 58 18h Attach Detect Configuration R/W Controls Attach Detect functionality 47h 59 19h Current Limit R/W Controls the maximum current limit 00h 61 1Ah Charge Rationing Threshold High Byte R/W Controls the Current Threshold ITHRESH used by the charge rationing circuitry FFh 61 1Bh Charge Rationing Threshold Low Byte R/W Controls the Current Threshold ITHRESH used by the charge rationing circuitry FFh 61 1Ch Auto-Recovery Configuration R/W Controls the Auto-Recovery functionality 2Ah 62 1Eh IBUS_CHG Configuration R/W Stores the limit for IBUS_CHG used to determine if emulation is successful 04h 63 1Fh tDET_CHARGE Configuration R/W Stores bits that define the tDET_CHARGE time 03h 64 20h BCS Emulation Enable R/W Enables BCS charger emulation profiles 06h 64 |
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