參數(shù)資料
型號： M38278E1MXXXGP
廠商： Mitsubishi Electric Corporation
英文描述： SX Series Subminiature Basic Switch, Single Pole Double Throw Circuitry, 1 A at 125 Vac, Pin Plunger Actuator, Solder Termination, Military Part Number MS24547-6
中文描述： 單芯片8位CMOS微機
文件頁數(shù)： 21/70頁
文件大?。?/td> 1112K
代理商： M38278E1MXXXGP
21
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
MITSUBISHI MICROCOMPUTERS
3827 Group
CNTR
active
edge switch bit
Timer 1 count source
selection bit
Real time port
control bit “0”
“1”
P5
5
/CNTR
1
“0”
f(X
IN
)/16
(f(X
CIN
)
16 in
φ
= X
CIN
divided by 2)
1
active
CNTR
“10”
Timer Y stop
control bit
Timer Y (low) latch (8)
Falling edge detection
Period
Timer Y
interrupt
request
Pulse width HL continuously measurement mode
Rising edge detection
“00”,“01”,“11”
Timer Y operating
mode bit
Timer X
interrupt
request
Timer X mode register
write signal
P5
4
/CNTR
0
Q
Q
T
S
P5
4
direction register
Pulse output mode
P5
4
latch
Timer X stop
control bit
“0”
“1”
Timer X write
control bit
Q D
Latch
Q D
Latch
“1”
“0”
“1”
“10”
Timer X operat-
ing mode bits
“00”,“01”,“11”
f(X
IN
)/16
(f(X
IN
)/16 in low-speed mode
8
)
Pulse width
measurement
mode
CNTR
0
active
edge switch bit
Pulse output mode
Q
Q
T
S
“0”
P4
3
direction register
P4
3
latch
“1”
T
output
active edge
switch bit
Timer 2 write
control bit
“0”
“1”
T
output
control bit
“1”
P4
3
/
φ
/T
OUT
X
CIN
Tim“1”
source selection bit
“0”
Timer 2
interrupt
request
Timer 3
interrupt
request
Timer 2 count source
selection bit
Timer 1
interrupt
request
Data bus
f(X
IN
)/16
(f(X
CIN
)/16 in
φ
= X
CIN
divided by 2)
f(X
IN
)/16
(f(X
CIN
)
16 in
φ
=X
CIN
divided by 2)
f(X
IN
)/16(f(X
CIN
)/16 in low-speed mode
8
)
CNTR
0
interrupt
request
CNTR
1
interrupt
request
Timer Y operating mode bit
“00”,“01”,“10”
“11”
Real time port
control bit “1”
P5
latch
Real time port
control bit “1”
P5
3
latch
Timer Y (low) (8)
Timer Y (high) (8)
Timer 3 latch (8)
Timer 3 (8)
Timer 1 latch (8)
Timer 1 (8)
Timer 2 latch (8)
Timer 2 (8)
Timer X (low) (8)
Timer X (high) (8)
Timer X (low) latch (8)
Timer X (high) latch (8)
Timer Y (high) latch (8)
T
output
control bit
“0”
“0”
“0”
P5
2
P5
3
P5
2
direction register
P5
3
direction register
P5
2
data for real time port
P5
3
data for real time port
TIMERS
The 3827 group has five timers: timer X, timer Y, timer 1, timer 2,
and timer 3. Timer X and timer Y are 16-bit timers, and 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-
responding to that timer is set to “1”.
Read and write operation on 16-bit timer must be performed for
both high and low-order bytes. When reading a 16-bit timer, read
the high-order byte first. When writing to a 16-bit timer, write the
low-order byte first. The 16-bit timer cannot perform the correct op-
eration when reading during the write operation, or when writing
during the read operation.
Fig. 17 Timer block diagram
相關(guān)PDF資料
PDF描述
M38278E1MXXXHP SX Series Subminiature Basic Switch, Single Pole Double Throw Circuitry, 1 A at 125 Vac, Pin Plunger Actuator, Solder Termination, Military Part Number MS24547-7
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