參數(shù)資料
型號： PIC16C642
廠商： Microchip Technology Inc.
英文描述： 8-Bit EPROM Microcontrollers with Analog Comparators(每個I/O口有25mA驅(qū)動/吸收電流，可編程Vref，微控制器)
中文描述： 8位EPROM微控制器與模擬比較器（每個的I / O口有25毫安驅(qū)動/吸收電流，可編程Vref的，微控制器）
文件頁數(shù)： 67/136頁
文件大?。?/td> 837K
代理商： PIC16C642
1996 Microchip Technology Inc.
Preliminary
DS30559A-page 67
PIC16C64X & PIC16C66X
9.5.1
RB0/INT INTERRUPT
The external interrupt on the RB0/INT pin is edge trig-
gered: either rising if bit INTEDG (OPTION<6>) is set,
or falling, if bit INTEDG is clear. When a valid edge
appears on the RB0/INT pin, flag bit INTF
(INTCON<1>) is set. This interrupt can be enabled/dis-
abled
by
setting/clearing
(INTCON<4>). The INTF bit must be cleared in soft-
ware in the interrupt service routine before re-enabling
this interrupt. The RB0/INT interrupt can wake-up the
processor from SLEEP, if bit INTE was set prior to
going into SLEEP. The status of the GIE bit decides
whether or not the processor branches to the interrupt
vector following wake-up. See Section 9.8 for details
on SLEEP and Figure 9-19 for timing of wake-up from
SLEEP through RB0/INT interrupt.
enable
bit
INTE
9.5.2
TMR0 INTERRUPT
An overflow (FFh
→
00h) in the TMR0 register will
set the T0IF (INTCON<2>) bit. The interrupt can
be
enabled/disabled
by
(INTCON<5>) bit. For operation of the Timer0 module,
see Section 6.0.
setting/clearing
T0IE
9.5.3
PORTB INTERRUPT
An input change on any bit of PORTB<7:4> sets flag bit
RBIF (INTCON<0>). The interrupt can be enabled/dis-
abled
by
setting/clearing
(INTCON<4>). For operation of PORTB (Section 5.2).
enable
bit
RBIE
9.5.4
COMPARATOR INTERRUPT
See Section 7.6 for complete description of the com-
parator interrupt.
FIGURE 9-16: RB0/INT PIN INTERRUPT TIMING
Q2
Q1
Q3
Q4
Q2
Q1
Q3
Q4
Q2
Q1
Q3
Q4
Q2
Q1
Q3
Q4
Q2
Q1
Q3
Q4
OSC1
CLKOUT
INT pin
INTF flag
(INTCON<1>)
GIE bit
(INTCON<7>)
INSTRUCTION FLOW
PC
Instruction
fetched
Instruction
executed
Interrupt Latency
PC
PC+1
PC+1
0004h
0005h
Inst (0004h)
Inst (0005h)
Dummy Cycle
Inst (PC)
Inst (PC+1)
Inst (PC-1)
Inst (0004h)
Dummy Cycle
Inst (PC)
—
1
4
5
1
Note 1: INTF flag is sampled here (every Q1).
2: Interrupt latency = 3-4 Tcy where Tcy = instruction cycle time.
Latency is the same whether Inst (PC) is a single cycle or a 2-cycle instruction.
3: CLKOUT is available only in RC oscillator mode.
4: For minimum width of INT pulse, refer to AC specs.
5: INTF is enabled to be set anytime during the Q4-Q1 cycles.
2
3
相關(guān)PDF資料
PDF描述
PIC16C64A Using the 8-Bit Parallel Slave Port(每個I/O口有25mA驅(qū)動/吸收電流,并行從動口,1路捕捉/比較/PWM的微控制器)
PIC16C66 8-Bit CMOS Microcontrollers(每個I/O口有25mA驅(qū)動/吸收電流,1路捕捉/比較/PWM的微控制器)
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
PIC16C642/JW 功能描述:8位微控制器 -MCU 7KB 176 RAM 22 I/O 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(fēng)格:SMD/SMT
PIC16C642-04/SO 功能描述:8位微控制器 -MCU 7KB 176 RAM 22 I/O 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(fēng)格:SMD/SMT
PIC16C642-04/SP 功能描述:8位微控制器 -MCU 7KB 176 RAM 22 I/O 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(fēng)格:SMD/SMT
PIC16C642-04E/SO 功能描述:8位微控制器 -MCU 7KB 176 RAM 22 I/O 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(fēng)格:SMD/SMT
PIC16C642-04E/SP 功能描述:8位微控制器 -MCU 7KB 176 RAM 22 I/O 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(fēng)格:SMD/SMT
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