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参数资料
| 型号： | M68HC11K |
| 厂商： | Motorola, Inc. |
| 元件分类： | 8位微控制器 |
| 英文描述： | 8-BIT MICROCONTROLLER |
| 中文描述： | 8位微控制器 |
| 文件页数： | 71/80页 |
| 文件大小： | 420K |
| 代理商： | M68HC11K |
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M68HC11 K Series
MC68HC11KTS/D
MOTOROLA
71
11 Pulse Accumulator
M68HC11 K-series MCUs have 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
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
(E)
(1/E)
Pulse Accumulator (Gated Mode)
32.0
μ
s
8.192 ms
1 Count —
(2
6
/E)
(2
14
/E)
21.33
μ
s
5.461 ms
16.0
μ
s
4.096 ms
Overflow —
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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相关代理商/技术参数 |
参数描述 |
|---|---|
| M68HC11K_1 | 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:8-Bit Microcontroller |
| M68HC11K_13 | 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:M68HC11K Family Technical Data |
| M68HC11K0 | 制造商:MOTOROLA 制造商全称:Motorola, Inc 功能描述:CONFIG Register Programming for EEPROM-based M68HC11 Microcontrollers |
| M68HC11K1 | 制造商:MOTOROLA 制造商全称:Motorola, Inc 功能描述:CONFIG Register Programming for EEPROM-based M68HC11 Microcontrollers |
| M68HC11K2 | 制造商:MOTOROLA 制造商全称:Motorola, Inc 功能描述:CONFIG Register Programming for EEPROM-based M68HC11 Microcontrollers |
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