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Timer A
Preliminary Specifications REV.B
Specifications in this manual are tentative and subject to change.
Mitsubishi microcomputers
M16C/80 (144-pin version) group
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
92
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
AAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAA
Clock prescaler reset flag
CPSR
0 : No effect
(When read, the value is “0”)
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
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
TA1TGH
TA2TGL
TA2TGH
TA3TGL
TA3TGH
TA4TGL
TA4TGH
b1 b0
b3 b2
b5 b4
b7 b6
TA1OS
TA2OS
TA0OS
One-shot start flag
Symbol
ONSF
Address
0342
16
When reset
00
16
Timer A0 one-shot start flag
Timer A1 one-shot start flag
Timer A2 one-shot start flag
Timer A3 one-shot start flag
Timer A4 one-shot start flag
TA3OS
TA4OS
Bit name
Function
Bit symbol
b7
b6
b5
b4
b3
b2
b1
b0
TA0TGL
TA0TGH
0 0 :
Input on TA0
IN
is selected (Note)
0 1 : TB2 overflow is selected
1 0 : TA4 overflow is selected
1 1 : TA1 overflow is selected
Timer A0 event/trigger
select bit
b7 b6
Note: Set the corresponding pin output function select register to I/O port, and
port direction register to “0”.
1 : Timer start
When read, the value is “0”
AA
AA
AA
AA
AA
AA
AA
AA
A
A
A
AA
AA
AA
AA
A
A
A
Z phase input enable bit
TAZIE
0 : Invalid
1 : Valid
Note: Set the corresponding port function select register to I/O port, and port
direction register to “0”.
Figure 1.13.4. Timer A-related registers (3)