參數(shù)資料
型號: PIC14000T-20/SS
廠商: Microchip Technology
文件頁數(shù): 136/153頁
文件大?。?/td> 0K
描述: IC MCU OTP 4KX14 A/D 28SSOP
標準包裝: 2,100
系列: PIC® 14
核心處理器: PIC
芯體尺寸: 8-位
速度: 20MHz
連通性: I²C
外圍設(shè)備: POR,溫度傳感器,WDT
輸入/輸出數(shù): 20
程序存儲器容量: 7KB(4K x 14)
程序存儲器類型: OTP
RAM 容量: 192 x 8
電壓 - 電源 (Vcc/Vdd): 2.7 V ~ 6 V
數(shù)據(jù)轉(zhuǎn)換器: 斜率 A/D
振蕩器型: 內(nèi)部
工作溫度: 0°C ~ 70°C
封裝/外殼: 28-SSOP(0.209",5.30mm 寬)
包裝: 帶卷 (TR)
1996 Microchip Technology Inc.
Preliminary
DS40122B-page 83
PIC14000
10.6.1
EXTERNAL INTERRUPT
An external interrupt can be generated via the
OSC1/PBTN pin if IN (internal oscillator) mode is
enabled. This interrupt is falling edge triggered. When
a valid edge appears on OSC1/PBTN pin, PBIF
(PIR1<4>) is set. This interrupt can be disabled by
clearing PBIE (PIE1<4>). PBIF must be cleared in soft-
ware in the interrupt service routine before re-enabling
the interrupt. This interrupt can wake up the processor
from SLEEP if PBIE bit is set (interrupt enabled) prior
to going into SLEEP mode. The status of the GIE bit
determines whether or not the processor branches to
the interrupt vector following wake-up. The timing of the
external interrupt is shown in Figure 10-10.
FIGURE 10-10: EXTERNAL (OSC1/PBTN) INTERRUPT TIMING
Q2
Q1
Q3
Q4
Q2
Q1
Q3
Q4
Q2
Q1
Q3
Q4
Q2
Q1
Q3
Q4
Q2
Q1
Q3
Q4
INTERNAL
CLKOUT(3)
PBTN pin
PBIF ag
(PIR<4>)
GIE bit
(INTCON<7>)
INSTRUCTION FLOW
PC
Instruction
fetched
Instruction
executed
Interrupt Latency
PC
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
Notes:
1. PBIF ag is sampled here (every Q1)
2. Interrupt latency = 3-4Tcy where Tcy = instruction cycle time.
Latency is the same whether Inst (PC) is a single cycle or a 2-cycle instruction.
3. Available only in IN oscillator mode on OSC2.
4. For minimum width spec of PBTN pulse, refer to AC specs.
5. PBIF is enabled to be set anytime during the Q4-Q1 cycles.
(Note 2)
OSC
相關(guān)PDF資料
PDF描述
MT5600SMI-X-L-34.R2 MODEM V.34 SERIAL DATA/FAX 3.3V
VE-22V-IY-S CONVERTER MOD DC/DC 5.8V 50W
VE-22T-IY-S CONVERTER MOD DC/DC 6.5V 50W
PIC14000T-20/SO IC MCU OTP 4KX14 A/D 28SOIC
MT100SEM-L.R1-SP DEVICE SERVER EMBEDDED 3.3V
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
PIC-1503 制造商:KODENSHI 制造商全稱:KODENSHI KOREA CORP. 功能描述:Photo IC(photodiode with signal processing)
PIC152N-A 制造商:SELEC CONTROLS 功能描述:PROCESS INDICATOR,2 ALARMS,1/8DIN,4DIGIT,RELAY OUTPUT
PIC152N-B-2 制造商:SELEC CONTROLS 功能描述:PROCESS INDICATOR,2 ALARMS,RETRANSMISSION OUTPUT
PIC163F73-I/SP 制造商:Microchip Technology Inc 功能描述:8BIT RISC - Bulk
PIC1655A-278 制造商:GI 功能描述: