User`s guide

Rev. 1.10 46 November 14, 2014 Rev. 1.10 47 November 14, 2014
HT66FW2230
Wireless Charger A/D Flash 8-Bit MCU
• LVRC Register
Bit 7 6 5 4 3 2 1 0
Name LVS7 LVS6 LVS5 LVS4 LVS3 LVS2 LVS1 LVS0
R/W R/W R/W R/W R/W R/W R/W R/W R/W
POR 0 1 0 1 0 1 0 1
Bit2~0 LVS[7:0]:LVRvoltageselect
01010101B: 2.1V (default)
00110011B: 2.55V
10011001B: 3.15V
10101010B: 3.8V
Anyothervalue:GeneratesMCUreset–registerisresettoPORvalue
When an actual low voltage condition occurs, as specified by the above
defined LVR voltage value, an MCU reset will be generated. The reset
operation will be activated after 2~3 LIRC clock cycles. In this situation
this register contents will remain the same after such a set occurs. Any
register value, other than the four dened values above, will also result in the
generation of an MCU reset. The reset operation will be activated after 2~3
LIRC clock cycles. However in this situation this register contents will be reset
to the POR value
.
• RSTFC Register
Bit 7 6 5 4 3 2 1 0
Name — — — — ERSTF LVRF — WRF
R/W — — — — R/W R/W — R/W
POR — — — — 0 × — 0
Bit7~4 Unimplemented,readas“0”
Bit3 ERSTF:ResetcausedbyRST[7:0]setting
0:notactive
1:active
Thisbitcanbeclearto“0”,butcannotsetto“1”.
Bit2 LVRF:LVRfunctionresetag
0:notactive
1:active
Thisbitcanbeclearto“0”,butcannotsetto“1”.
Bit1 Unimplemented,readas“0”
Bit0 WRF:resetcausedbyWE[4:0]setting
Describeelsewhere
Watchdog Time-out Reset during Normal Operation
WhentheWatchdogtime-outResetduringnormaloperation,theWatchdogtime-outagTOwillbe
setto“1”.

  


 
    
Note:t
RSTD
ispower-ondelay,typicaltime=16.7ms
WDT Time-out Reset during Normal Operation Timing Chart