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參數(shù)資料
| 型號(hào)： | M37510E2156FP |
| 廠商： | Mitsubishi Electric Corporation |
| 英文描述： | SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| 中文描述： | 單芯片8位CMOS微機(jī) |
| 文件頁(yè)數(shù)： | 14/43頁(yè) |
| 文件大?。?/td> | 614K |
| 代理商： | M37510E2156FP |
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14
7510 Group
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
MITSUBISHI MICROCOMPUTERS
TIMERS
The 7510 group has five built-in timers: timer X, timer Y, timer 1,
timer 2, and timer 3. Timer X and timer Y are 16-bit timers,
whereas timer 1, timer 2, and timer 3 are 8-bit timers.
All timers are down count timers. When the timer reaches “00
16
”,
an underflow occurs at the next count pulse and the correspond-
ing timer latch is reloaded into the timer and the count is
continued. When a timer underflows, the interrupt request bit cor-
Fig. 9 Block diagram of Timer
X
CIN
X
IN
1/32
1/16
P4
2
/CNTR
0
P4
2
direction register
Pulse output mode
P4
2
latch
P4
3
/CNTR
1
CNTR
1
active edge
selection bit
Internal system
clock selection bit
CNTR
0
active edge
selection bit
Timer X stop control bit
“00”
Timer X write control bit
Timer X interrupt request
Timer X operation mode bit
Pulse output mode
CNTR
0
interrupt request
CNTR
0
active “1”
edge selection bit
“1”
“0”
“10”
“11”
“01”
“0”
“1”
“0”
“10”
“11”
“01”
“00”
Timer Y operation mode bit
Timer 1 count source selection bit
“1”
“0”
“1”
“0”Timer 2 count source
selection bit
Timer 3 count source
selection bit
Timer 3 interrupt request
Timer 1 interrupt request
Timer 2 interrupt request
Timer 2 write control bit
Timer Y interrupt request
Timer Y operation mode bit
CNTR
1
interrupt request
Pulse width continuously
measurement mode
Period
measurement mode
Rising edge detector
Falling edge detector
Timer Y
stop
control bit
Timer 1 latch (8)
Timer 1 (8)
Timer 2 latch (8)
Timer 2 (8)
Timer 3 latch (8)
Timer 3 (8)
“1”
“0”
“11”
“01”
“10”
“00”
Timer XL latch (8)
Timer XL (8)
Timer XH latch (8)
Timer XH (8)
Timer YL latch (8)
Timer YL (8)
Timer YH latch (8)
Timer YH (8)
S
Q
Q
T
“0”
“1”
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