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參數(shù)資料
| 型號： | PIC18F8525-EPTQTP |
| 廠商： | Microchip Technology Inc. |
| 英文描述： | 64/80-Pin High Performance, 64-Kbyte Enhanced FLASH Microcontrollers with A/D |
| 中文描述： | 64/80-Pin高性能，64字節(jié)的閃存微控制器與A /數(shù) |
| 文件頁數(shù)： | 149/386頁 |
| 文件大?。?/td> | 3107K |
| 代理商： | PIC18F8525-EPTQTP |
2003 Microchip Technology Inc.
Advance Information
DS39612A-page 147
PIC18F6X2X/8X2X
14.2
Timer1 Oscillator
The Timer1 oscillator may be used as the clock source
for Timer3. The Timer1 oscillator is enabled by setting
the T1OSCEN (T1CON<3>) bit. The oscillator is a low
power oscillator rated up to 200 kHz. See Section 12.0
for further details.
14.3
Timer3 Interrupt
The TMR3 register pair (TMR3H:TMR3L) increments
from 0000h to FFFFh and rolls over to 0000h. The
TMR3 interrupt, if enabled, is generated on overflow
which is latched in interrupt flag bit, TMR3IF
(PIR2<1>). This interrupt can be enabled/disabled by
setting/clearing TMR3 interrupt enable bit, TMR3IE
(PIE2<1>).
14.4
Resetting Timer3 Using an ECCP
Special Trigger Output
If either the ECCP1 or ECCP2 module is configured in
Compare mode to generate a special event trigger
(CCP1M3:CCP1M0 =
1011
), this signal will reset
Timer3.
Timer3 must be configured for either Timer or Synchro-
nized Counter mode to take advantage of this feature.
If Timer3 is running in Asynchronous Counter mode,
this RESET operation may not work. In the event that a
write to Timer3 coincides with a special event trigger
from ECCP1, the write will take precedence. In this
mode of operation, the CCPR1H:CCPR1L register pair
effectively becomes the period register for Timer3.
TABLE 14-1:
REGISTERS ASSOCIATED WITH TIMER3 AS A TIMER/COUNTER
Note:
The special event triggers from the CCP
module will not set interrupt flag bit,
TMR3IF (PIR1<0>).
Name
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Value on
POR, BOR
Value on
all other
RESETS
INTCON
GIE/
GIEH
—
—
—
Holding Register for the Least Significant Byte of the 16-bit TMR3 Register
Holding Register for the Most Significant Byte of the 16-bit TMR3 Register
PEIE/
GIEL
—
—
—
TMR0IE
INT0IE
RBIE
TMR0IF
INT0IF
RBIF
0000 0000
0000 0000
PIR2
PIE2
IPR2
TMR3L
TMR3H
—
—
—
EEIF
EEIE
EEIP
BCLIF
BCLIE
BCLIP
LVDIF
LVDIE
LVDIP
TMR3IF
TMR3IE
TMR3IP
CCP2IF
CCP2IE
CCP2IP
---0 0000
---0 0000
---0 0000
---0 0000
---1 1111
---1 1111
xxxx xxxx
uuuu uuuu
xxxx xxxx
uuuu uuuu
T1CON
RD16
—
T1CKPS1 T1CKPS0 T1OSCEN
T1SYNC
TMR1CS
TMR1ON
0-00 0000
u-uu uuuu
T3CON
Legend:
RD16
x
= unknown,
u
= unchanged,
-
= unimplemented, read as ‘0’. Shaded cells are not used by the Timer3 module.
T3CCP2
T3CKPS1 T3CKPS0
T3CCP1
T3SYNC
TMR3CS
TMR3ON
0000 0000
uuuu uuuu
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| PIC18F8525-I/PT | 功能描述:8位微控制器 -MCU 48KB 3840 RAM 68I/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 |
| PIC18F8525T-I/PT | 功能描述:8位微控制器 -MCU 48KB 3840 RAM 68I/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 |
| PIC18F8527-I/PT | 功能描述:8位微控制器 -MCU 48 KB 4K RAM 70 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 |
| PIC18F8527T-I/PT | 功能描述:8位微控制器 -MCU 48 KB 4K RAM 70 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 |
| PIC18F8585-E/PT | 功能描述:8位微控制器 -MCU 48KB 3328 RAM 68I/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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