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UCS81003 Datasheet(PDF) 45 Page - Microchip Technology |
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UCS81003 Datasheet(HTML) 45 Page - Microchip Technology |
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45 / 108 page  2014 Microchip Technology Inc. DS20005334A-page 45 UCS81003 10.0 REGISTER DESCRIPTION The registers shown in Table 10-1 are accessible through the SMBus or I2C. While in the Sleep state, the UCS81003 will retain configuration and charge rationing data as indicated in the text. If a register does not indicate that data will be retained in the Sleep power state, this information will be lost when the UCS81003 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 47 01h Total Accumulated Charge High Byte R Stores the total accumulated charge delivered high byte 00h 48 02h Total Accumulated Charge Middle High Byte R Stores the total accumulated charge delivered middle high byte 00h 48 03h Total Accumulated Charge Middle Low Byte R Stores the total accumulated charge delivered middle low byte 00h 48 04h Total Accumulated Charge Low Byte R Stores the total accumulated charge delivered low byte 00h 48 0Fh Other Status R Indicates emulation status as well as the ALERT# and A_DET# pin status 00h 49 10h Interrupt Status See Register 10-3 Indicates why ALERT# pin asserted 00h 50 11h General Status R/R-C Indicates general status 00h 51 12h Profile Status 1 R Indicates which charger emulation pro- file was accepted 00h 52 13h Profile Status 2 R 00h 53 14h Pin Status R Indicates the pin states of the internal control pins 00h 54 15h General Configuration R/W Controls basic functionality 01h 55 16h Emulation Configuration R/W Controls emulation functionality 8Ch 56 17h Switch Configuration R/W Controls advanced switch functions 04h 57 18h Attach Detect Configuration R/W Controls Attach Detect functionality 46h 58 19h Current Limit R/W Controls the maximum current limit 00h 60 1Ah Charge Rationing Threshold High Byte R/W Controls the Current Threshold ITHRESH used by the charge rationing circuitry FFh 60 1Bh Charge Rationing Threshold Low Byte R/W Controls the Current Threshold ITHRESH used by the charge rationing circuitry FFh 60 1Ch Auto-recovery Configuration R/W Controls the Auto-Recovery functionality 2Ah 61 1Eh IBUS_CHG Configuration R/W Stores the limit for IBUS_CHG used to determine if emulation is successful 0Fh 62 1Fh tDET_CHARGE Configuration R/W Stores bits that define the tDET_CHARGE time 03h 63 20h BCS Emulation Enable R/W Enables BCS charger emulation profiles 16h 63 21h Legacy Emulation Enable R/W Enables Legacy charger emulation profiles 00h 64 22h BCS Emulation Timeout Config R/W Controls timeout for each BCS charger emulation profile 10h 65 |
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