Holtek BS86DH12C Manual page 58

• LVRC Register
Bit 7
Name LVS7
R/W R/W
POR 0
Bit 7~0 LVS7~LVS0: LVR voltage selection
01010101: 2.1V
00110011: 2.55V
10011001: 3.15V
10101010: 3.8V
Other values: Generates a MCU reset – register is reset to POR value
When an actual low voltage condition occurs, as specified by the LVR voltage value
above, an MCU reset will be generated. The reset operation will be activated after the
low voltage condition keeps for greater than a t
contents will remain the same after such a reset occurs.
Any register value, other than the four defined register values above, will also result
in the generation of an MCU reset. The reset operation will be activated after a delay
time, t
value.
• RSTFC Register
Bit 7
Name —
R/W —
POR —
Bit 7~4 Unimplemented, read as "0"
Bit 3 RSTF: RSTC register software reset flag
Described elsewhere
Bit 2 LVRF: LVR function reset flag
0: Not occurred
1: Occurred
This bit is set to 1 when a specific low voltage reset condition occurs. Note that this bit
can only be cleared to 0 by the application program.
Bit 1 LRF: LVR control register software reset flag
0: Not occurred
1: Occurred
This bit is set to 1 by the LVRC control register contains any undefined LVR voltage
register values. This in effect acts like a software-reset function. Note that this bit can
only be cleared to 0 by the application program.
Bit 0 WRF: WDT control register software reset flag
Described elsewhere
Rev. 1.00
High Voltage Touch A/D Flash MCU with HVIO
LVR
Internal Reset
Low Voltage Reset Timing Chart
6 5 4
LVS6 LVS5 LVS4
R/W R/W R/W
1 0 1
. However in this situation the register contents will be reset to the POR
SRESET
6 5 4
— — —
— — —
— — —
58
BS86DH12C
t + t
RSTD SST
3 2 1
LVS3 LVS2 LVS1
R/W R/W R/W
0 1 0
time. In this situation the register
LVR
3 2 1
RSTF LVRF LRF
R/W R/W R/W
0 x 0
"x": unknown
October 26, 2018
0
LVS0
R/W
1
0
WRF
R/W
0