deveopmen
Rev.B2 for proof reading
Timer A
Mitsubishi Microcomputers
M32C/83 group
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
135
Symbol
CPSRF
Address
0341
16
When reset
0XXXXXXX
2
Clock prescaler reset flag
Bit name
Function
Bit symbol
b7
b6
b5
b4
b3
b2
b1
b0
Clock prescaler reset flag
0 : Ignored
1 : Prescaler is reset
(When read, the value is
“
0
”
)
CPSR
W
R
Nothing is assigned.
When write, set
“
0
”
. When read, their contents are
indeterminate.
TA1TGL
Symbol
TRGSR
Address
0343
16
When reset
00
16
Timer A1 event/trigger
select bit
Input on TA1
IN
is selected (Note)
0 1 : TB2 overflow is selected
1 0 : TA0 overflow is selected
1 1 : TA2 overflow is selected
Trigger select register
Bit name
Function
Bit symbol
b7
b6
b5
b4
b3
b2
b1
b0
0 0 :
Input on TA2
IN
is selected (Note)
0 1 : TB2 overflow is selected
1 0 : TA1 overflow is selected
1 1 : TA3 overflow is selected
0 0 :
Input on TA3
IN
is selected (Note)
0 1 : TB2 overflow is selected
1 0 : TA2 overflow is selected
1 1 : TA4 overflow is selected
Input on TA4
IN
is selected (Note)
0 1 : TB2 overflow is selected
1 0 : TA3 overflow is selected
1 1 : TA0 overflow is selected
Timer A2 event/trigger
select bit
Timer A3 event/trigger
select bit
Timer A4 event/trigger
select bit
W
R
A
A
A
A
A
A
A
TA1TGH
TA2TGL
TA2TGH
TA3TGL
TA3TGH
TA4TGL
TA4TGH
b1 b0
b3 b2
b5 b4
b7 b6
A
A
Note: Set the corresponding port function select register A to I/O port, and port direction register to
“
0
”
.
A
A
Figure 1.14.5. Timer A-related registers (4)
