參數(shù)資料
型號(hào)： MC68HC705J1ACP
廠商： MOTOROLA INC
元件分類(lèi)： 微控制器/微處理器
英文描述： Microcontrollers
中文描述： 8-BIT, OTPROM, 2.1 MHz, MICROCONTROLLER, PDIP20
封裝： PLASTIC, DIP-20
文件頁(yè)數(shù)： 81/108頁(yè)
文件大?。?/td> 718K
代理商： MC68HC705J1ACP
I/O Registers
MC68HC705KJ1 MC68HRC705KJ1 MC68HLC705KJ1 Data Sheet, Rev. 4.1
Freescale Semiconductor
81
9.5 I/O Registers
The following registers control and monitor the timer operation:
Timer status and control register (TSCR)
Timer counter register (TCR)
9.5.1 Timer Status and Control Register
The read/write timer status and control register performs the following functions:
Flags timer interrupts
Enables timer interrupts
Resets timer interrupt flags
Selects real-time interrupt rates
TOF — Timer Overflow Flag
This read-only flag becomes set when the first eight stages of the counter roll over from $FF to $00.
TOF generates a timer overflow interrupt request if TOIE is also set. Clear TOF by writing a logic 1 to
the TOFR bit. Writing to TOF has no effect. Reset clears TOF.
RTIF — Real-Time Interrupt Flag
This read-only flag becomes set when the selected RTI output becomes active. RTIF generates a
real-time interrupt request if RTIE is also set. Clear RTIF by writing a logic 1 to the RTIFR bit. Writing
to RTIF has no effect. Reset clears RTIF.
TOIE — Timer Overflow Interrupt Enable Bit
This read/write bit enables timer overflow interrupts. Reset clears TOIE.
1 = Timer overflow interrupts enabled
0 = Timer overflow interrupts disabled
RTIE — Real-Time Interrupt Enable Bit
This read/write bit enables real-time interrupts. Reset clears RTIE.
1 = Real-time interrupts enabled
0 = Real-time interrupts disabled
TOFR — Timer Overflow Flag Reset Bit
Writing a logic 1 to this write-only bit clears the TOF bit. TOFR always reads as logic 0. Reset clears
TOFR.
RTIFR — Real-Time Interrupt Flag Reset Bit
Writing a logic 1 to this write-only bit clears the RTIF bit. RTIFR always reads as logic 0. Reset clears
RTIFR.
Address:
$0008
Bit 7
6
5
4
3
2
1
Bit 0
Read:
TOF
RTIF
TOIE
RTIE
0
0
RT1
RT0
Write:
TOFR
RTIFR
Reset:
0
0
0
0
0
0
1
1
= Unimplemented
Figure 9-3. Timer Status and Control Register (TSCR)
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MC68HC705J1ACPE 功能描述:8位微控制器 -MCU HCO5 CORE+1.2K RAM + EPR 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(shí)鐘頻率:50 MHz 程序存儲(chǔ)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(fēng)格:SMD/SMT
MC68HC705J2CDW 制造商:Motorola Inc 功能描述: 制造商:Motorola Inc 功能描述:MicroController, 8-Bit, 20 Pin, Plastic, SOP
MC68HC705J2DW 制造商:Motorola Inc 功能描述:
MC68HC705J5ACP 制造商:Motorola Inc 功能描述: 制造商:MOTOROLA 功能描述:
MC68HC705JB4DW 制造商:Motorola Inc 功能描述: 制造商:MOTOROLA 功能描述:
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