Renesas M16C FAMILY series Hardware Manual page 135

M 1 6 C 2 / 8 G o r u p ( M 1 6 C
Timer Bi Register (i=0 to 2
(b15
b7
NOTES:
1.The register must be accessed in 16 bit units.
2. The timer counts pulses from an external device or overflows or underflows of other timers.
3. When this mode is used combining delayed trigger mode 0, set the larger value than the
value in the timer B0 register to the timer B1 register.
Count Start Flag
b7 b6 b5 b4 b3
Clock Prescaler Reset flag
b7 b6 b5 b4 b3
Figure 12.17 TB0 to TB2 Registers, TABSR Register, CPSRF Register
R e . v 2 0 . 0 J a . n 3 , 1 2 0 0 7
R E J 0 9 B 0 0 4 7 0 - 2 0 0
2 / , 8 M 1 6 C 2 / 8 ) B
)(1)
(b8)
b0 b7 b0
Mode
Timer mode
Event counter
mode
Pulse period
modulation mode,
Pulse width
modulation mode
A/D trigger
(3)
mode
b2 b1 b0
Symbol
TABSR
Bit Symbol
TA0S Timer A0 count start flag
TA1S Timer A1 count start flag
TA2S Timer A2 count start flag
TA3S Timer A3 count start flag
TA4S Timer A4 count start flag
TB0S Timer B0 count start flag
TB1S Timer B1 count start flag
TB2S Timer B2 count start flag
b2 b1 b0
Symbol
CPSRF
Bit Symbol
Nothing is assigned. If necessary, set to 0. When read, the
(b6-b0)
contents are undefined
Clock prescaler reset flag
CPSR
page 115
f o 3 8 5
Symbol Address
TB0 0391
TB1 0393
TB2 0395
Function
Divide the count source by n + 1
where n = set value
Divide the count source by n + 1
(2)
where n = set value
Measures a pulse period or width
Divide the count source by n + 1 where
n = set value and cause the timer stop
Address After Reset
0380 00
16 16
Bit Name
0: Stops counting
1: Starts counting
Address After Reset
0381 0XXXXXXX
16
Bit Name
Setting this bit to 1 initializes the
prescaler for the timekeeping clock.
(When read, the value of this bit is 0)
After Reset
, 0390 Undefined
16 16
, 0392 Undefined
16 16
, 0394 Undefined
16 16
Setting Rrange
0000 to FFFF
16 16
0000 to FFFF
16 16
0000 to FFFF
16 16
Function
16
Function
12. Timer
RW
RW
RW
RO
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW