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參數(shù)資料
| 型號(hào)： | MC68HC11ED0VFN3 |
| 廠商： | FREESCALE SEMICONDUCTOR INC |
| 元件分類(lèi)： | 微控制器/微處理器 |
| 英文描述： | 8-BIT, 3 MHz, MICROCONTROLLER, PQCC44 |
| 封裝： | PLASTIC, LCC-44 |
| 文件頁(yè)數(shù)： | 6/108頁(yè) |
| 文件大?。?/td> | 1672K |
| 代理商： | MC68HC11ED0VFN3 |
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Timing System
Pulse Accumulator
MC68HC11ED0 — Rev. 1.0
Technical Summary
Timing System
9.4 Pulse Accumulator
The MC68HC11ED0 has an 8-bit counter that can be configured as a
simple event counter or for gated time accumulation. The counter can be
read or written at any time.
The port A bit 7 I/O pin can be configured to act as a clock in event
counting mode, or as a gate signal to enable a free-running clock (E
divided by 64) to the 8-bit counter in gated time accumulation mode.
Refer to Figure 9-1 and Table 9-5.
Figure 9-20. Pulse Accumulator System Block Diagram
PE
D
G
E
PA
M
O
D
PA
EN
PACTL CONTROL
INTERNAL
DATA BUS
PACNT
8-BIT COUNTER
PA7/
PAI/
OC1
INTERRUPT
REQUESTS
PAI
F
PAOV
F
TFLG2 INTERRUPT STATUS
PAOV
I
PAI
I
PAOVF
PAOVI
PAIF
PAII
TMSK2 INT ENABLES
1
2
OVERFLOW
ENABLE
DISABLE
FLAG SETTING
CLOCK
PAI EDGE
PAEN
2
:1
MUX
OUTPUT
BUFFER
INPUT BUFFER
AND
EDGE DETECTOR
FROM
MAIN TIMER
OC1
DATA
BUS
MCU PIN
E
÷ 64 CLOCK
FROM MAIN TIMER
FROM
DDRA7
F
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e
sc
a
le
S
e
m
ic
o
n
d
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Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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| MC68HC11ED0MFU3 | 8-BIT, 3 MHz, MICROCONTROLLER, PQFP44 |
| MC68HC11ED0CFU3 | 8-BIT, 3 MHz, MICROCONTROLLER, PQFP44 |
| MC68HC11ED0MP2 | 8-BIT, 2 MHz, MICROCONTROLLER, PDIP40 |
| MC68HC11ED0MFN2 | 8-BIT, 2 MHz, MICROCONTROLLER, PQCC44 |
| MC68HC11ED0CFU2 | 8-BIT, 2 MHz, MICROCONTROLLER, PQFP44 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MC68HC11ED0VFU2 | 制造商:FREESCALE 制造商全稱(chēng):Freescale Semiconductor, Inc 功能描述:Technical Summary |
| MC68HC11ED0VFU3 | 制造商:FREESCALE 制造商全稱(chēng):Freescale Semiconductor, Inc 功能描述:Technical Summary |
| MC68HC11ED0VP2 | 制造商:FREESCALE 制造商全稱(chēng):Freescale Semiconductor, Inc 功能描述:Technical Summary |
| MC68HC11ED0VP3 | 制造商:FREESCALE 制造商全稱(chēng):Freescale Semiconductor, Inc 功能描述:Technical Summary |
| MC68HC11EX | 制造商:FREESCALE 制造商全稱(chēng):Freescale Semiconductor, Inc 功能描述:APPENDIX A ELECTRICAL CHARACTERISTICS |
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