HT82K76E-L datasheet(31/58 Pages) HOLTEK

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HT82K70E-L/HT82K76E-L

Rev. 1.00

September 15, 2009

Bit

Name

Description

Z2_WAKEUP

Read only bit.

1: Z2 changed before Z1

0: default

Z1_WAKEUP

Read only bit.

1: Z1 changed before Z2

0: default

V2_WAKEUP

Read only bit.

1: V2 changed before V1

0: default

V1_WAKEUP

Read only bit.

1: V1 changed before V2

0: default

SPI_EN

This bit control the shared PIN (SCS, SDI, SDO and SCK) is SPI or GPIO mode

1: SPI mode

0: IO mode (default)

SPI_CSEN

1: Enable, this bit is used to enable/disable software CSEN function

0: Disable, SCS define as GPIO (default)

CKEG

1: SPI first output the data immediately after the SPI is enable. And SPI output the data in

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);

0: SPI output the data 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)

SPI_ CPOL

1: clock polarity rising

0: clock polarity falling (default)

Note: The Internal Register bit4~bit7 data will clear to zero after F/W read the register.

Wake-up Status Register

- WSR

Bit

Name

Description

LVD_sel

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

LVD_rd_ctrl

To control the DC/DC to check the LVD voltage

1: enable LVD

0: disable LVD (default)

Low battery

Flag for battery low signal (error 5%)

1: battery voltage

£ according LVD_sel voltage

0: battery voltage > according LVD_sel voltage

The user should wait at least 20

ms after set LVD_rd_ctrl and then read the corresponding

voltage Low battery signal

WDTEN

To control the Watchdog timer

1: enable

0: disable

TMR1S

To selected Timer 1 source

1: WDT OSC

0: fSYS/4

Where WDT OSC is selected as TMR1 source. WDT OSC is always enabled.

Unimplemented, read as

²0²

Control Register

- CTLR

HT82K76E-L Datasheet(PDF) 31 Page - Holtek Semiconductor Inc

HT82K76E-L Datasheet(HTML) 31 Page - Holtek Semiconductor Inc

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