ht82k70e-l Holtek Semiconductor Inc., ht82k70e-l Datasheet - Page 31

• Manufacturer Part Number: ht82k70e-l
• Description: I/o Type 8-bit Otp Mcu
• Manufacturer: Holtek Semiconductor Inc.

Note: The Internal Register bit4~bit7 data will clear to zero after F/W read the register.
Rev. 1.00
Bit
Bit
7
6
5
4
3
2
1
0
7
6
5
4
3
2
1
0
Z2_WAKEUP
Z1_WAKEUP
V2_WAKEUP
V1_WAKEUP
SPI_EN
SPI_CSEN
CKEG
SPI_ CPOL
LVD_sel
LVD_rd_ctrl
Low battery
WDTEN
TMR1S
Name
Name
Read only bit.
1: Z2 changed before Z1
0: default
Read only bit.
1: Z1 changed before Z2
0: default
Read only bit.
1: V2 changed before V1
0: default
Read only bit.
1: V1 changed before V2
0: default
This bit control the shared PIN (SCS, SDI, SDO and SCK) is SPI or GPIO mode
1: SPI mode
0: IO mode (default)
1: Enable, this bit is used to enable/disable software CSEN function
0: Disable, SCS define as GPIO (default)
1: SPI first output the data immediately after the SPI is enable. And SPI output the data in
0: SPI output the data in the rising edge(polarity=0) or falling edge (polarity=1);
1: clock polarity rising
0: clock polarity falling (default)
To Selected low voltage detector level, Bit 7, 6, 5=
000: 1.0V
001: 1.2V
010: 1.4V
011: 2.0V
100: 2.4V
101: 2.7V
110: 3.0V
111: 3.3V
To control the DC/DC to check the LVD voltage
1: enable LVD
0: disable LVD (default)
Flag for battery low signal (error 5%)
1: battery voltage
0: battery voltage > according LVD_sel voltage
The user should wait at least 20 s after set LVD_rd_ctrl and then read the corresponding
voltage Low battery signal
To control the Watchdog timer
1: enable
0: disable
To selected Timer 1 source
1: WDT OSC
0: f
Where WDT OSC is selected as TMR1 source. WDT OSC is always enabled.
Unimplemented, read as 0
the falling edge(polarity=0) or rising edge (polarity=1); SPI read data in the in the rising
edge (polarity=0) or falling edge (polarity=1);
SPI read data in the in the falling edge(polarity=0) or rising edge (polarity=1); (default)
SYS
/4
Wake-up Status Register - WSR
Control Register - CTLR
according LVD_sel voltage
31
Description
Description
HT82K70E-L/HT82K76E-L
September 15, 2009