HT45R2K-C_15 Datasheet, PDF (61/105 Pages) Holtek Semiconductor Inc – Dual Slope 16K/8K/4K ASSP MCU for Body Fat Scale

HT45R2K-C/-B/-A
Dual Slope 16K/8K/4K ASSP MCU for Body Fat Scale
TKM0C3 Register
Bit
7
6
5
4
3
2
1
0
Name D9 D8 M0RCOV M016CTOV M010CTOV M0ROVS2 M0ROVS1 M0ROVS0
R/W R/W R/W R/W
R/W
R/W
R/W
R/W
R/W
POR
0
0
0
0
0
0
0
0
Bit 7~6 D9~ D8: fVDD 10-bit Counter Bit 9 and Bit 8
Bit 5
M0RCOV: 13-stage Counter Overflow Flag
0: no overflow
1: overflow
If the 13-stage counter overflows, the Touch Key Interrupt request flag, TKF, will be
set and the hardware will clear ENCK to low to disable the fTMCK and fVDDCK
outputs.
Bit 4
M016CTOV: 16-bit C/F Counter Overflow Flag
0: no overflow
1: overflow
This bit must be cleared by software.
Bit 3
M010CTOV: 10-bit Counter Overflow Flag
0: no overflow
1: overflow
This bit must be cleared by software.
Bit 2~0
M0ROVS2~ M0ROVS0: Reference Oscillator 13-stage Counter Overflow Time Select
Switch 0 control bits:
000: 64 counts
001: 128 counts
010: 256 counts
011: 512 counts
100: 1024 counts
101: 2048 counts
110: 4096 counts
111: 8192 counts
TKM0C4 Register
Bit
7
6
5
4
3
2
1
0
Name
—
FVDD2 FVDD1 FVDD0
—
—
—
NORM
R/W
—
R/W
R/W
R/W
—
—
—
R/W
POR
—
0
0
0
—
—
—
0
Bit 7
Bit 6~4
Bit 3~1
Bit 0
Unimplemented, read as “0”
FVDD2~ FVDD0: FVDD Clock Source Select
000: f_SYS/2
001: f_SYS/4
010: f_SYS/8
011: f_SYS/16
100: f_SYS/32
101: f_SYS/64
110: f_SYS/128
111: f_SUB
Unimplemented, read as “0”
NORM: Normal/Low Power Mode Select
0: Low power mode
1: Normal mode
Rev. 1.40
61
March 12, 2015