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參數(shù)資料
| 型號： | MC68L11F1FN3 |
| 廠商： | MOTOROLA INC |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | Multiconductor Audio, Control & Instrumentation Cable; Number of Conductors:15; Conductor Size AWG:22; No. Strands x Strand Size:7 x 30; Jacket Material:Polyvinylchloride (PVC); Conductor Material:Copper; Conductor Plating:Tin RoHS Compliant: Yes |
| 中文描述： | 8-BIT, EEPROM, MICROCONTROLLER, PQCC68 |
| 封裝： | PLASTIC, LCC-68 |
| 文件頁數(shù)： | 27/68頁 |
| 文件大?。?/td> | 486K |
| 代理商： | MC68L11F1FN3 |
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MC68HC11F1/FC0
MC68HC11FTS/D
MOTOROLA
27
CR[1:0] — COP Timer Rate Select
The COP system is driven by a constant frequency of E/2
15
. CR[1:0] specify an additional divide-by fac-
tor to arrive at the COP time-out rate.
Write $55 to COPRST to arm the COP watchdog clearing mechanism. Then write $AA to COPRST to
reset the COP timer. Performing instructions between these two steps is possible provided both steps
are completed in the correct sequence before the timer times out.
Bits [7:4] — See
4.3 System Initialization Registers
, page 20.
PSEL[3:0] — Interrupt Priority Select Bits
Can be written only while the I bit in the CCR is set (interrupts disabled). These bits select one interrupt
source to have priority over other I-bit related sources.
Table 12 COP Watchdog Time-Out Periods
Frequency
1 MHz
2 MHz
3 MHz
4 MHz
5 MHz
6 MHz
Tolerance
-0/+32.768 ms
-0/+16.384 ms
-0/+10.923 ms
-0/+8.192 ms
-0/+6.554 ms
-0/+5.461 ms
CR[1:0] = 00
32.768 ms
16.384 ms
10.923 ms
8.192 ms
6.554 ms
5.461 ms
CR[1:0] = 01
131.072 ms
65.536 ms
43.691 ms
32.768 ms
26.214 ms
21.845
CR[1:0] = 10
524.288 ms
262.144 ms
174.763 ms
131.072 ms
104.858 ms
87.381 ms
CR[1:0] = 11
2.097 s
1.049 s
699.051 ms
524.288 ms
419.430 ms
349.525 ms
Any E
-0/+2
15
/E
2
15
/E
2
17
/E
2
19
/E
2
21
/E
COPRST —
Arm/Reset COP Timer Circuitry
$x03A
Bit 7
6
5
4
3
2
1
Bit 0
7
6
5
4
3
2
1
0
RESET:
0
0
0
0
0
0
0
0
HPRIO —
Highest Priority I-Bit Interrupt and Miscellaneous
$x03C
Bit 7
6
5
4
3
2
1
Bit 0
RBOOT
SMOD
MDA
IRV
PSEL3
PSEL2
PSEL1
PSEL0
RESET:
0
1
0
1
Table 13 Highest Priority Interrupt Selection
PSEL[3:0]
0000
0001
0010
0011
0100
0101
0110
0111
1000
1001
1010
Interrupt Source Promoted
Timer Overflow
Pulse Accumulator Overflow
Pulse Accumulator Input Edge
SPI Serial Transfer Complete
SCI Serial System
Reserved (Default to IRQ)
IRQ (External Pin)
Real-Time Interrupt
Timer Input Capture 1
Timer Input Capture 2
Timer Input Capture 3
相關PDF資料 |
PDF描述 |
|---|---|
| MC68L11F1PU3 | Technical Summary 8-Bit Microcontroller |
| MC74AC00 | QUAD 2-INPUT NAND GATE |
| MC74AC00 | QUAD 2-INPUT NAND GATE |
| MC74ACT00 | NPN Epitaxial Silicon Transistor |
| MC74AC00D | QUAD 2-INPUT NAND GATE |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
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| MC68L711E9FU2 | 制造商:Rochester Electronics LLC 功能描述: 制造商:Freescale Semiconductor 功能描述: |
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