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HT48R002 数据表(PDF) 3 Page - Holtek Semiconductor Inc

部件名 HT48R002
功能描述  Cost-Effective I/O 8-Bit OTP MCU
Download  71 Pages
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制造商  HOLTEK [Holtek Semiconductor Inc]
网页  http://www.holtek.com
标志 HOLTEK - Holtek Semiconductor Inc

HT48R002 数据表(HTML) 3 Page - Holtek Semiconductor Inc

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Rev. 1.11
2
April 11, 2017
Rev. 1.11
3
April 11, 2017
HT48R002/HT48R003
Cost-Effective I/O 8-Bit OTP MCU
HT48R002/HT48R003
Cost-Effective I/O 8-Bit OTP MCU
Power Down Mode and Wake-up.................................................................. 23
Power Down Mode................................................................................................................ 23
Entering the Power Down Mode ........................................................................................... 23
Standby Current Considerations........................................................................................... 23
Wake-up................................................................................................................................ 24
Watchdog Timer............................................................................................. 25
Watchdog Timer Clock Source.............................................................................................. 25
Watchdog Timer Control Registers ....................................................................................... 25
Watchdog Timer Operation ................................................................................................... 26
Reset and Initialization.................................................................................. 27
Reset Functions .................................................................................................................... 27
Reset Initial Conditions ......................................................................................................... 30
Input/Output Ports......................................................................................... 33
I/O Register List .................................................................................................................... 33
Pull-high Resistors ................................................................................................................ 34
Port A Wake-up ..................................................................................................................... 34
I/O Port Control Registers..................................................................................................... 35
Pin-shared Functions ............................................................................................................ 36
I/O Pin Structures.................................................................................................................. 36
Programming Considerations................................................................................................ 37
Timer/Event Counter ..................................................................................... 38
Configuring the Timer/Event Counter Input Clock Source .................................................... 38
Timer Register – TMR0......................................................................................................... 39
Timer Control Register – TMR0C.......................................................................................... 39
Timer Mode ........................................................................................................................... 40
Event Counter Mode ............................................................................................................. 41
Pulse Width Capture Mode ................................................................................................... 42
Prescaler............................................................................................................................... 43
PFD Function (for HT48R003) .............................................................................................. 43
I/O Interfacing........................................................................................................................ 43
Programming Considerations................................................................................................ 44
Timer Program Example ....................................................................................................... 45
Interrupts........................................................................................................ 46
Interrupt Register .................................................................................................................. 46
Interrupt Operation................................................................................................................ 47
Interrupt Priority..................................................................................................................... 48
External Interrupt................................................................................................................... 49
Timer/Event Counter Interrupt............................................................................................... 49
Interrupt Wake-up Function................................................................................................... 49
Programming Considerations................................................................................................ 50
Application Circuits....................................................................................... 50


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