參數(shù)資料
型號: HCS120
廠商: Microchip Technology Inc.
英文描述: Bi-directional Authenticator(雙向文電鑒別碼)
中文描述: 雙向認(rèn)證者(雙向文電鑒別碼)
文件頁數(shù): 104/170頁
文件大?。?/td> 4191K
代理商: HCS120
PIC16F62X
DS40300C-page 102
Preliminary
2003 Microchip Technology Inc.
14.6.1
RB0/INT INTERRUPT
External interrupt on RB0/INT pin is edge triggered:
either rising if INTEDG bit (OPTION<6>) is set, or
falling, if INTEDG bit is clear. When a valid edge
appears on the RB0/INT pin, the INTF bit
(INTCON<1>) is set. This interrupt can be disabled by
clearing the INTE control bit (INTCON<4>). The INTF
bit must be cleared in software in the interrupt service
routine before re-enabling this interrupt. The RB0/INT
interrupt can wake-up the processor from SLEEP, if the
INTE bit 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 14.9 for details on SLEEP, and Figure 14-17
for timing of wake-up from SLEEP through RB0/INT
interrupt.
14.6.2
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
14.6.3
PORTB INTERRUPT
An input change on PORTB <7:4> sets the RBIF
(INTCON<0>) bit. The interrupt can be enabled/
disabled by setting/clearing the RBIE (INTCON<4>)
bit. For operation of PORTB (Section 5.2).
14.6.4
COMPARATOR INTERRUPT
See Section 9.6 for complete description of comparator
interrupts.
FIGURE 14-15:
INT PIN INTERRUPT TIMING
Note:
If a change on the I/O pin should occur
when the read operation is being executed
(start of the Q2 cycle), then the RBIF inter-
rupt flag may not get set.
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)
Note
1:
2:
INTF flag is sampled here (every Q1).
Asynchronous interrupt latency = 3-4 Tcy. Synchronous latency = 3 Tcy, where Tcy = instruction cycle time. Latency
is the same whether Inst (PC) is a single cycle or a 2-cycle instruction.
CLKOUT is available in ER and INTRC Oscillator mode.
For minimum width of INT pulse, refer to AC specs.
INTF is enabled to be set anytime during the Q4-Q1 cycles.
3:
4:
5:
(1)
(1)
(4)
(5)
(2)
(3)
相關(guān)PDF資料
PDF描述
HCS405 Code Hopping Encoder(KeeLoq 碼編碼器)
HCS109HMSR Connector Dust Cap; For Use With:RJ45 Field Bus Hexagonal Jam Nut Receptacles, RJF71B; Accessory Type:RJ Field Bus; Approval Categories:UL94V-0 Flammability rated; Body Material:Metallic Housing; Color:Black; Series:RJ Field Bus
HCS109DMSR Radiation Hardened Dual JK Flip Flop
HCS109KMSR Radiation Hardened Dual JK Flip Flop
HCS109MS Radiation Hardened Dual JK Flip Flop(抗輻射雙J-K觸發(fā)器)
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
HCS1201AX 制造商:JLWORLD 制造商全稱:JLWORLD 功能描述:Electro-Magnetic Sound Generators
HCS1203AX 制造商:JLWORLD 制造商全稱:JLWORLD 功能描述:Electro-Magnetic Sound Generators
HCS1206AX 制造商:JLWORLD 制造商全稱:JLWORLD 功能描述:Electro-Magnetic Sound Generators
HCS1212AX 制造商:JLWORLD 制造商全稱:JLWORLD 功能描述:Electro-Magnetic Sound Generators
HCS125 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:Radiation Hardened Quad Buffer, Three-State