Holtek HT66F004 User Manual

Rev. 1.71 80 April 11, 2017 Rev. 1.71 81 April 11, 2017
HT66F002/HT66F0025/HT66F003/HT66F004
Cost-Effective A/D Flash MCU with EEPROM
HT66F002/HT66F0025/HT66F003/HT66F004
Cost-Effective A/D Flash MCU with EEPROM
Counter Value
CCRP
CCRA
ST0ON
ST0PAU
ST0POL
CCRP Int. Flag
STMP0F
CCRA Int. Flag
STMA0F
STM O/P Pin
(ST0OC=1)
Time
Counter stopped
by CCRA
Pause
Resume
Counter Stops
by software
Counter Reset when
ST0ON returns high
ST0M [1:0] = 10 ; ST0IO [1:0] = 11
Pulse Width
set by CCRA
Output Inverts
when ST0POL = 1
No CCRP Interrupts
generated
STM O/P Pin
(ST0OC=0)
STCK0 pin
Software
Trigger
Cleared by
CCRA match
STCK0 pin
Trigger
Auto. set by
STCK0 pin
Software
Trigger
Software
Clear
Software
Trigger
Software
Trigger
Single Pulse Mode
Note:1.CounterstoppedbyCCRAmatch
2.CCRPisnotused
3.ThepulseistriggeredbysettingtheST0ONbithigh
4.IntheSinglePulseMode,ST0IO[1:0]mustbesetto“11”andcannotbechanged.
HoweveracomparematchfromComparatorAwillalsoautomaticallycleartheST0ONbitandthus
generatetheSinglePulseoutputtrailingedge.InthiswaytheCCRAvaluecanbeusedtocontrolthe
pulsewidth.AcomparematchfromComparatorAwillalsogenerateaSTMinterrupt.Thecounter
canonlyberesetbacktozerowhentheST0ONbitchangesfromlowtohighwhenthecounter
restarts.IntheSinglePulseModeCCRPisnotused.TheST0CCLRandST0DPXbitsarenotused
inthisMode.

Holtek HT66F004 Specifications

General

Brand	Holtek
Model	HT66F004
Category	Control Unit
Language	English