ht82m75r Holtek Semiconductor Inc., ht82m75r Datasheet - Page 29
ht82m75r
Manufacturer Part Number
ht82m75r
Description
I/o Type 8-bit Otp Mcu
Manufacturer
Holtek Semiconductor Inc.
Datasheet
1.HT82M75R.pdf
(66 pages)
- Current page: 29 of 66
- Download datasheet (469Kb)
Period Timer Register - PTR
This register is used to define the period of the timer which always counts in the Power Down mode. Once the timer is
reached, the MCU will be woken-up by Period Timer Register overflow. Once the MCU is woken-up by the period timer,
the CNT_WK bit of the wake-up Register is set to 1 .
Rev. 1.10
Bit No. Func. Name R/W
Bit No.
0~7
0
1
2
3
4
5
6
7
CNT_WK
Clock_div
LVD_Set
DC_Ctrl
2.2 Low
Battery
Period Timer
Function
Name
R/W
R/W
R/W
R
R
0: MCU wakeup not by period counter
1: MCU wakeup by period counter overflow (Read only)
This bit is used to decide whether the DC block is in operation
0: enable DC_DC output (default)
1: disable DC_DC output
Flag for 2.2V battery low signal coming from DC/DC block (error 5%)
0: battery voltage > 2.2 or 2.0V
1: battery voltage
00: CLK/1=6MHz (default)
01: CLK/2=3MHz
10: CLK/4=1.5MHz
11: CLK/4=1.5MHz
LVD detect voltage select
000: 1.8V
001: 2.0V
010: 2.2V (default)
011: 2.5V
100: 2.8V
R/W
R/W
The Period Timer is the time interval generator with one second as a unit. If
the bits [7:0] are equal to 00H, the MCU will be woken up by one of the
wake-up source mentioned in Wake-up Section except the PTR overflow
event. If the bits [7:0] are not equal to 00H, the MCU will be woken up from
the Power Down mode by the following events except WDT overflow event:
Period Timer Register - PTR
I/O Port wake-up
INT wake-up
Reset
The Period Timer is reached to the values specified by the PTR.
Watchdog Timer Register
Control Register CTLR
2.2 or 2.0 V
29
Description
Description
HT82M75R/HT82M75RE
HT82K75R/HT82K75RE
June 11, 2010
Related parts for ht82m75r
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
Ht46r63/ht46c63 -- A/d With Lcd Type 8-bit Mcu
Manufacturer:
Holtek Semiconductor Inc.
Datasheet:
Part Number:
Description:
Ht6221/ht6222 -- Multi-purpose Encoders
Manufacturer:
Holtek Semiconductor Inc.
Datasheet:
Part Number:
Description:
Ht6230 -- Infrared Remote Encoder
Manufacturer:
Holtek Semiconductor Inc.
Datasheet:
Part Number:
Description:
Ht6571 -- Multiple Rs-232 Drivers And Receivers Restricted Products
Manufacturer:
Holtek Semiconductor Inc.
Datasheet:
Part Number:
Description:
Ps/2 Mouse Controller
Manufacturer:
Holtek Semiconductor Inc.
Datasheet:
Part Number:
Description:
I/o Ttl Integration
Manufacturer:
Holtek Semiconductor Inc.
Datasheet:
Part Number:
Description:
Ht82m98a -- 3-key 3d Usb+ps/2 Mouse Controller
Manufacturer:
Holtek Semiconductor Inc.
Datasheet:
Part Number:
Description:
Ht82k68e -- Multimedia Keyboard Encoder 8-bit Otp Mcu
Manufacturer:
Holtek Semiconductor Inc.
Datasheet:
Part Number:
Description:
Ht82v732 -- 60ma Audio Power Amp
Manufacturer:
Holtek Semiconductor Inc.
Datasheet:
Part Number:
Description:
16-bit Ccd/cis Analog Signal Processor
Manufacturer:
Holtek Semiconductor Inc.
Datasheet:
Part Number:
Description:
22-memory Tone/pulse Dialer
Manufacturer:
Holtek Semiconductor Inc.
Datasheet:
Part Number:
Description:
Ht93lc66 -- Cmos 4k 3-wire Serial Eeprom
Manufacturer:
Holtek Semiconductor Inc.
Datasheet:
Part Number:
Description:
1k/2k/4k-bit Hi2c Interface Serial Eeprom
Manufacturer:
Holtek Semiconductor Inc.
Datasheet:
Part Number:
Description:
Ht6p20x -- 2^24 Otp Encoder
Manufacturer:
Holtek Semiconductor Inc.
Datasheet:
Part Number:
Description:
High Voltage Regulator
Manufacturer:
Holtek Semiconductor Inc.
Datasheet: