參數(shù)資料
型號： MC68HC705C9AVFN
廠商： FREESCALE SEMICONDUCTOR INC
元件分類： 微控制器/微處理器
英文描述： 8-BIT, OTPROM, 2.1 MHz, MICROCONTROLLER, PQCC44
封裝： PLASTIC, LCC-44
文件頁數(shù)： 154/177頁
文件大?。?/td> 1941K
代理商： MC68HC705C9AVFN
Capture/Compare Timer
Advance Information
MC68HC705C9A — Rev. 4.0
78
Capture/Compare Timer
MOTOROLA
8.4.2 Timer Status Register
The timer status register (TSR), shown in Figure 8-3, contains flags to
signal the following conditions:
An active signal on the TCAP pin, transferring the contents of the
timer registers to the input capture registers
A match between the 16-bit counter and the output compare
registers, transferring the OLVL bit to the TCMP pin
A timer roll over from $FFFF to $0000
ICF — Input Capture Flag
The ICF bit is set automatically when an edge of the selected polarity
occurs on the TCAP pin. Clear the ICF bit by reading the timer status
register with ICF set and then reading the low byte ($0015) of the
input capture registers. Resets have no effect on ICF.
OCF — Output Compare Flag
The OCF bit is set automatically when the value of the timer registers
matches the contents of the output compare registers. Clear the OCF
bit by reading the timer status register with OCF set and then reading
the low byte ($0017) of the output compare registers. Resets have no
effect on OCF.
TOF — Timer Overflow Flag
The TOF bit is set automatically when the 16-bit counter rolls over
from $FFFF to $0000. Clear the TOF bit by reading the timer status
register with TOF set, and then reading the low byte ($0019) of the
timer registers. Resets have no effect on TOF.
$0013
Bit 7
6
54321
Bit 0
Read:
ICF
OCF
TOF
00000
Write:
Reset:
U
00000
= Unimplemented
U = Undetermined
Figure 8-3. Timer Status Register (TSR)
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PDF描述
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相關代理商/技術參數(shù)
參數(shù)描述
MC68HC705C9AVFNE 功能描述:8位微控制器 -MCU 8B MCU 352 BYTES RAM RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風格:SMD/SMT
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MC68HC705G1B 制造商:Rochester Electronics LLC 功能描述:- Bulk
MC68HC705J1A 制造商:Freescale Semiconductor 功能描述:
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