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| 型號： | M38C2XMX |
| 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 |
| 文件頁數(shù)： | 28/63頁 |
| 文件大?。?/td> | 1000K |
| 代理商： | M38C2XMX |
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28
38C2 Group
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
MITSUBISHI MICROCOMPUTERS
PRELIMINARY
Notice: This is not a final specification.
Some parametric limits are subject to change.
Fig. 23 Structure of Timer X, Y related registers
Timer X mode register
16
)
Timer X operating mode bits
0 0 0 : Timer mode
CIN
Timer X )
5
)
Timer X output selection bit (P3
1 : Timer X output
b7
b0
Timer X control register
(TXCON: address 0FF4
16
)
Noise filter sampling clock selection bit
IN
)/2
IN
)/4
1 : f(X
0 0 : Not delayed
0 1 : (4/f(X
IN
))
μ
s
1 0 : (8/f(X
IN
))
μ
s
1 1 : (16/f(X
IN
))
μ
s
1
)
Timer X output control bit 1 (P5
1
interrupt used
4
)
2
interrupt used
“
L
”
output
H
”
0
act“
1 : INT
0 0 : Falling edge active for CNTR
“
H
”
pulse width in pu interrupt
0 1 : Rising edge active for CNTR
0
“
L
”
pulse width in pu interrupt
1 0 : Both edges active for CNTR
1 1 : Count at both edges in event interrupt
Both edges active for CNTR
0
interrupt
b7
b0
Timer XY frequency division selection register
16
)
Timer X frequency division selection bits
b2 b1 b0
0 0 0 : 1/16
f(X
IN
) or 1/16
f(X
CIN
)
0 0 1 : 1/1
f(X
IN
) or 1/1
f(X
CIN
)
0 1 0 : 1/2
f(X
IN
) or 1/2
f(X
CIN
)
0 1 1 : 1/32
f(X
IN
) or 1/32
f(X
CIN
)
1 0 0 : 1/64
f(X
IN
) or 1/64
f(X
CIN
)
1 0 1 : 1/128
f(X
IN
) or 1/128
f(X
CIN
)
1 1 0 : 1/256
f(X
IN
) or 1/256
f(X
CIN
)
1 1 1 : 1/1024
f(X
IN
) or 1/1024
f(X
CIN
)
Timer Y frequency division selection bits
b5 b4 b3
0 0 0 : 1/16
f(X
IN
) or 1/16
f(X
CIN
)
0 0 1 : 1/1
f(X
IN
) or 1/1
f(X
CIN
)
0 1 0 : 1/2
f(X
IN
) or 1/2
f(X
CIN
)
0 1 1 : 1/32
f(X
IN
) or 1/32
f(X
CIN
)
1 0 0 : 1/64
f(X
IN
) or 1/64
f(X
CIN
)
1 0 1 : 1/128
f(X
IN
) or 1/128
f(X
CIN
)
1 1 0 : 1/256
f(X
IN
) or 1/256
f(X
CIN
)
1 1 1 : 1/1024
f(X
IN
) or 1/1024
f(X
CIN
)
Not used (returns
“
0
”
when read)
b7
b0
Timer Y mode register
16
)
Re data for real time port
P4
6
7
data for real time port
P4
0 : Frequency divider output
CIN
)
0 0 : Timer mode
1
0Measure falling period in period measurement mode
1
interrupt
1 : Measure rising period in period measurement mode
1
interrupt
TiRising edge active for CNTR
b7
b0
Timer Y mode register 2
16
)
Timer Y write control bit
“
0
”
when read)
b7
b0
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