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CHAPTER 13 8/16-BIT UP/DOWN COUNTER/TIMER
●
Method to set the value to up/down counter
The value can be set to the up/down counter when "1" is written to the counter write bit
(CCR0.CTUT, CCR1.CTUT) after the value is written to the reload/compare register (RCR).
●
Method to enable up/down counter clear when up count value of up/down counter and compare value
(RCR[0:1]) match and up count is performed
Set by the up/down counter clear enable bit (CCR0.UCRE, CCR1.UCRE).
●
Method to enable the reload value (RCR[1:0]) to reload to the up/down counter when underflow of the
up/down counter is generated
Set by the reload enable bit (CCR0.RLDE, CCR1.RLDE).
●
Method to clear up/down counter
The up/down counter can be cleared using the following five methods:
•
Write "0" to the up/down counter clear bit (CCR0.UDCC, CCR1.UDCC)
•
Edge input to ZIN pin
•
Match between compare value and up count value of up/down counter
•
Count up operation from full count
•
Reset input (external reset, watchdog reset, software reset)
Operation
Up/down counter clear enable bit (UCRE)
To disable up/down counter clear
Set to "0"
To enable up/down counter clear
Set to "1"
Operation
Reload enable bit (RLDE)
To disable the reload value (RCR) reloading from up/down
counter
Set to "0"
To enable the reload value (RCR) to reload to up/down counter
Set to "1"
Summary of Contents for MB90480 Series
Page 2: ......
Page 4: ......
Page 10: ...vi ...
Page 128: ...106 CHAPTER 4 RESET ...
Page 174: ...152 CHAPTER 6 LOW POWER CONSUMPTION MODE ...
Page 198: ...176 CHAPTER 7 MODE SETTING ...
Page 220: ...198 CHAPTER 9 TIMEBASE TIMER ...
Page 238: ...216 CHAPTER 11 WATCH TIMER ...
Page 280: ...258 CHAPTER 12 16 BIT INPUT OUTPUT TIMER ...
Page 406: ...384 CHAPTER 17 8 10 BIT A D CONVERTER ...
Page 478: ...456 CHAPTER 20 CHIP SELECTION FACILITY ...
Page 494: ...472 CHAPTER 21 ADDRESS MATCH DETECTION FUNCTION ...
Page 498: ...476 CHAPTER 22 ROM MIRROR FUNCTION SELECTION MODULE ...
Page 526: ...504 CHAPTER 23 2M 3M BIT FLASH MEMORY ...
Page 536: ...514 CHAPTER 24 EXAMPLES OF MB90F481B MB90F482B MB90F488B MB90F489B SERIAL PROGRAMMING ...
Page 570: ...548 CHAPTER 25 PWC TIMER ONLY MB90485 SERIES ...
Page 688: ......