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參數(shù)資料
| 型號： | MC68HC11EA9VFN3 |
| 廠商： | FREESCALE SEMICONDUCTOR INC |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 8-BIT, MROM, 3 MHz, MICROCONTROLLER, PQCC52 |
| 封裝： | PLASTIC, LCC-52 |
| 文件頁數(shù)： | 36/58頁 |
| 文件大?。?/td> | 583K |
| 代理商： | MC68HC11EA9VFN3 |
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MC68HC11EA9
MOTOROLA
MC68HC11EA9TS/D
41
Bit 3 — Not Implemented
Always reads zero
I4/O5 — Input Capture 4/Output Compare 5 Select
0 = Interrupts from edges on PAI pin are disabled
1 = Edges detected on PAI pin generate interrupts (rising or falling, depending on configuration)
RTR[1:0] — Real-Time Interrupt Rate Select
ADPU — A/D Converter Power up
Refer to 9 Analog-to-Digital Converter
CSEL — Clock Select
0 = A/D and EEPROM use the system E clock
1 = A/D and EEPROM use internal RC clock
IRQE — IRQ Select Edge-Sensitive Only
Refer to 5 Resets and Interrupts
DLY — Enable Oscillator Start-up Delay
0 = No stabilization delay on exit from STOP mode.
1 = A delay of approximately 4000 E-clock cycles is imposed as the MCU exits STOP mode.
CME — Clock Monitor Enable
0 = Clock monitor disabled; slow clock can be used.
1 = Slow or stopped clocks cause COP failure reset.
Bit 2 — Not implemented
Always reads zero
CR[1:0] — COP Timer Rate Select
Refer to 5 Resets and Interrupts
Table 17 Real-Time Interrupt Rates
Rate
RTI Rate Selected
RTR[1:0]
Selected
E = 1.0 MHz
E = 2.0 MHz
E = 3.0 MHz
0 0
213
÷ E
8.192 ms
4.096 ms
2.731 ms
0 1
214
÷ E
16.384 ms
8.192 ms
5.461 ms
1 0
215
÷ E
32.768 ms
16.384 ms
10.923 ms
1 1
216
÷ E
65.536 ms
32.768 ms
21.845 ms
OPTION — System Configuration Options
$1039
BIT 7
654321
BIT 0
ADPU
CSEL
IRQE*
DLY*
CME
—
CR1*
CR0*
RESET:
00010000
* Can be written only once in first 64 cycles after reset in normal modes, or at any time in special modes.
Table 18 COP Timer Rate Selection
CR[1:0]
Rate
Selected
Period Length
E = 1.0 MHz E = 2.0 MHz E = 3.0 MHz
0 0
215
÷ E
32.768 ms
16.384 ms
10.923 ms
0 1
217
÷ E
131.072 ms
65.536 ms
43.691 ms
1 0
219
÷ E
524.288 ms
262.140 ms
174.76 ms
1 1
221
÷ E
2.097 s
1.049 s
699.05 ms
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Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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