M68HC11ERG Просмотр технического описания (PDF) - Motorola => Freescale
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Компоненты Описание
производитель
M68HC11ERG Datasheet PDF : 60 Pages
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Crystal Dependent Timer Summary
M68HC11ERG/AD
Crystal Dependent Timer Summary
CPU Clock
Cycle Time
(E/26)
(E/214)
(E/1)
(E/216)
(E/4)
(E/218)
(E/8)
(E/219)
(E/16)
(E/220)
(E/213)
(E/214)
(E/215)
(E/216)
(E/215)
(E/217)
(E/219)
(E/221)
(E/215)
Selected
Crystal
(E)
(1/E)
1 count —
overflow —
PR[1:0]
00
1 count—
overflow —
01
1 count—
overflow —
10
1 count—
overflow —
11
1 count—
overflow —
RTR[1:0]
00
01
10
11
CR[1:0]
00
01
10
11
Timeout
tolerance
(–0 ms/+...)
Common XTAL Frequencies
4.0 MHz
8.0 MHz
12.0 MHz
1.0 MHz
2.0 MHz
3.0 MHz
1000 ns
500 ns
333 ns
Pulse Accumulator (in Gated Mode)
64.0 µs
16.384 ms
32.0 µs
8.192 ms
21.330 µs
5.491 ms
Main Timer Count Rates
1.0 µs
65.536 ms
500 ns
32.768 ms
333 ns
21.845 ms
4.0 µs
262.14 ms
2.0 µs
131.07 ms
1.333 µs
87.381 ms
8.0 µs
524.29 ms
4.0 µs
262.14 ms
2.667 µs
174.76 ms
16.0 µs
1.049 s
8.0 µs
524.29 ms
5.333 µs
349.52 ms
Periodic (RTI) Interrupt Rates
8.192 ms
16.384 ms
32.768 ms
65.536 ms
4.096 ms
8.192 ms
16.384 ms
32.768 ms
2.731 ms
5.461 ms
10.923 ms
21.845 ms
COP Watchdog Timeout Rates
32.768 ms
131.072 ms
524.288 ms
2.097 s
16.384 ms
65.536 ms
262.14 ms
1.049 s
10.923 ms
43.691 ms
174.76 ms
699.05 ms
32.8 ms
16.4 ms
10.9 ms
MOTOROLA
M68HC11E Series Programming Reference Guide
3
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