M16C80 Datasheet, PDF (107/358 Pages) Renesas Technology Corp – RENESAS 16-BIT SINGLE-CHIP MICROCOMPUTER M16C FAMILY / M16C/80 SERIES

M16C/80 Group
13. Timer A
One-shot start flag
b7 b6 b5 b4 b3 b2 b1 b0
Symbol
ONSF
Address
034216
When reset
0016
Bit symbol
Bit name
TA0OS Timer A0 one-shot start flag
TA1OS Timer A1 one-shot start flag
Function
1 : Timer start
When read, the value is “0”
RW
TA2OS Timer A2 one-shot start flag
TA3OS Timer A3 one-shot start flag
TA4OS Timer A4 one-shot start flag
TAZIE _{Z phase input enable bit}
0 : Invalid
1 : Valid
TA0TGL
TA0TGH
Timer A0 event/trigger
select bit
b7 b6
0 0 : Input on TA0IN is selected (Note)
0 1 : TB2 overflow is selected
1 0 : TA4 overflow is selected
1 1 : TA1 overflow is selected
Note: Set the corresponding function select register A to I/O port, and port
direction register to “0”.
Trigger select register
b7 b6 b5 b4 b3 b2 b1 b0
Symbol
TRGSR
Address
034316
When reset
0016
Bit symbol
Bit name
TA1TGL ^{Timer A1 event/trigger}
select bit
TA1TGH
TA2TGL ^{Timer A2 event/trigger}
select bit
TA2TGH
TA3TGL
TA3TGH
Timer A3 event/trigger
select bit
TA4TGL
TA4TGH
Timer A4 event/trigger
select bit
Function
b1 b0
0 0 : Input on TA1IN is selected (Note)
0 1 : TB2 overflow is selected
1 0 : TA0 overflow is selected
1 1 : TA2 overflow is selected
b3 b2
0 0 : Input on TA2IN is selected (Note)
0 1 : TB2 overflow is selected
1 0 : TA1 overflow is selected
1 1 : TA3 overflow is selected
b5 b4
0 0 : Input on TA3IN is selected (Note)
0 1 : TB2 overflow is selected
1 0 : TA2 overflow is selected
1 1 : TA4 overflow is selected
b7 b6
0 0 : Input on TA4IN is selected (Note)
0 1 : TB2 overflow is selected
1 0 : TA3 overflow is selected
1 1 : TA0 overflow is selected
RW
Note: Set the corresponding function select register A to I/O port, and port
direction register to “0”.
Clock prescaler reset flag
b7 b6 b5 b4 b3 b2 b1 b0
Symbol
CPSRF
Address
034116
When reset
0XXXXXXX2
Bit symbol
Bit name
Function
Nothing is assigned.
When write, set "0". When read, their contents are indeterminate.
CPSR Clock prescaler reset flag
0 : No effect
1 : Prescaler is reset
(When read, the value is “0”)
RW
Figure 13.4 Timer A-related registers (3)
Rev.1.00 Aug. 02, 2005 ^{Page 96} of 329
REJ09B0187-0100