參數(shù)資料
型號(hào)： MC68HC11KA4TS
廠商： Motorola, Inc.
英文描述： KPT 3C 3#16 PIN PLUG
中文描述： 8位微控制器
文件頁數(shù)： 59/68頁
文件大?。?/td> 365K
代理商： MC68HC11KA4TS
MC68HC11KA4
MC68HC11KA4TS/D
MOTOROLA
59
11 Pulse Accumulator
The MC68HC11KA4/KA2 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.
Figure 18 Pulse Accumulator System Block Diagram
Selected
Crystal
(E)
(1/E)
Common XTAL Frequencies
12.0 MHz
3.0 MHz
333 ns
8.0 MHz
2.0 MHz
500 ns
16.0 MHz
4.0 MHz
250 ns
CPU Clock
Cycle Time
Pulse Accumulator (Gated Mode)
1 count —
(E/2
6)
(E/2
14
)
32.0
μ
s
21.330
μ
s
16.0
μ
s
overflow —
8.192 ms
5.461 ms
4.096 ms
P
P
P
PACTL
CONTROL
INTERNAL
DATA BUS
PACNT
8-BIT COUNTER
PA7/
PAI/
OC1
INTERRUPT
REQUESTS
P
P
TFLG2
INTERRUPT STATUS
P
P
PAOVF
PAOVI
PAIF
PAII
TMSK2
INT ENABLES
1
2
OVERFLOW
ENABLE
DISABLE
FLAG SETTING
CLOCK
PAI EDGE
PAEN
PAEN
2:1
MUX
OUTPUT
BUFFER
INPUT BUFFER
AND
EDGE DETECTOR
FROM
MAIN TIMER
OC1
DATA BUS
PIN
E
÷
64 CLOCK
(FROM MAIN TIMER)
FROM
DDRA7
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MC68HC11KA4VFN2 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-Bit Microcontroller
MC68HC11KA4VFN3 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-Bit Microcontroller
MC68HC11KA4VFN4 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-Bit Microcontroller
MC68HC11KA4VFU2 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-Bit Microcontroller
MC68HC11KA4VFU3 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-Bit Microcontroller
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