
41
3803/3804 Group
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
MITSUBISHI MICROCOMPUTERS
Fig. 31 Structure of timer 12, X and timer Y, Z count source selection registers
Timer 12 count source selection bits
b3b2b1b0
0 0 0 0 : f(X
IN
)/2 or f(X
CIN
)/2
0 0 0 1 : f(X
IN
)/4 or f(X
CIN
)/4
0 0 1 0 : f(X
IN
)/8 or f(X
CIN
)/8
0 0 1 1 : f(X
IN
)/16 or f(X
CIN
)/16
0 1 0 0 : f(X
IN
)/32 or f(X
CIN
)/32
0 1 0 1 : f(X
IN
)/64 or f(X
CIN
)/64
0 1 1 0 : f(X
IN
)/128 or f(X
CIN
)/128
0 1 1 1 : f(X
IN
)/256 or f(X
CIN
)/256
1 0 0 0 : f(X
IN
)/512 or f(X
CIN
)/512
1 0 0 1 : f(X
IN
)/1024 or f(X
CIN
)/1024
Timer 12, X count source selection register
(T12XCSS : address 000E
16
)
b
7
b
0
Timer X count source selection bits
b7b6b5b4
0 0 0 0 : f(X
IN
)/2 or f(X
CIN
)/2
0 0 0 1 : f(X
IN
)/4 or f(X
CIN
)/4
0 0 1 0 : f(X
IN
)/8 or f(X
CIN
)/8
0 0 1 1 : f(X
IN
)/16 or f(X
CIN
)/16
0 1 0 0 : f(X
IN
)/32 or f(X
CIN
)/32
0 1 0 1 : f(X
IN
)/64 or f(X
CIN
)/64
0 1 1 0 : f(X
IN
)/128 or f(X
CIN
)/128
0 1 1 1 : f(X
IN
)/256 or f(X
CIN
)/256
1 0 0 0 : f(X
IN
)/512 or f(X
CIN
)/512
1 0 0 1 : f(X
IN
)/1024 or f(X
CIN
)/1024
1 0 1 0 : f(X
CIN
)
1011 :
1100 :
1101 :
1110 :
1111 :
Not used
Timer Y, Z count source selection register
(TYZCSS : address 000F
16
)
Timer Y count source selection bits
b3b2b1b0
0 0 0 0 : f(X
IN
)/2 or f(X
CIN
)/2
0 0 0 1 : f(X
IN
)/4 or f(X
CIN
)/4
0 0 1 0 : f(X
IN
)/8 or f(X
CIN
)/8
0 0 1 1 : f(X
IN
)/16 or f(X
CIN
)/16
0 1 0 0 : f(X
IN
)/32 or f(X
CIN
)/32
0 1 0 1 : f(X
IN
)/64 or f(X
CIN
)/64
0 1 1 0 : f(X
IN
)/128 or f(X
CIN
)/128
0 1 1 1 : f(X
IN
)/256 or f(X
CIN
)/256
1 0 0 0 : f(X
IN
)/512 or f(X
CIN
)/512
1 0 0 1 : f(X
IN
)/1024 or f(X
CIN
)/1024
1 0 1 0 : f(X
CIN
)
b
7
b0
Timer Z count source selection bits
b7b6b5b4
0 0 0 0 : f(X
IN
)/2 or f(X
CIN
)/2
0 0 0 1 : f(X
IN
)/4 or f(X
CIN
)/4
0 0 1 0 : f(X
IN
)/8 or f(X
CIN
)/8
0 0 1 1 : f(X
IN
)/16 or f(X
CIN
)/16
0 1 0 0 : f(X
IN
)/32 or f(X
CIN
)/32
0 1 0 1 : f(X
IN
)/64 or f(X
CIN
)/64
0 1 1 0 : f(X
IN
)/128 or f(X
CIN
)/128
0 1 1 1 : f(X
IN
)/256 or f(X
CIN
)/256
1 0 0 0 : f(X
IN
)/512 or f(X
CIN
)/512
1 0 0 1 : f(X
IN
)/1024 or f(X
CIN
)/1024
1 0 1 0 : f(X
CIN
)
1011 :
1100 :
1101 :
1110 :
1111 :
Not used
1
1
1
1
1
1
1
1
1
1
0
0
1
1
1
0
1
0
1
:
:
:
:
:
N
o
t
u
s
e
d
1
1
1
1
1
1
0
1
1
1
1
1
1
0
0
1
1
0
1
0
1
0
1
:
:
:
:
:
:
N
o
t
u
s
e
d