M16C1N Datasheet, PDF (84/238 Pages) Renesas Technology Corp – RENESAS 16-BIT SINGLE-CHIP MICROCOMPUTER M16C FAMILY / M16C/10 SERIES

M16C/1N Group
12. Timers
Prescaler 1
b7
Timer 1
b7
b0
Symbol
PRE1
Address
008816
When reset
Indeterminate
Function
Values that can be set RW
When set value = n, Prescaler 1 divides the internal count _{0016 to FF16 RW}
source by n+1
b0
Symbol
T1
Address
008916
Function
When set value = m, Timer 1 divides the underflow of
Prescaler 1 by m+1
When reset
Indeterminate
Values that can be set RW
0016 to FF16 RW
Timer count source setting register
b7 b6 b5 b4 b3 b2 b1 b0
Symbol
TCSS
Address
008E16
When reset
0016
Bit symbol
Bit name
Function
RW
TXCK0
Timer X count source ^{b1 b0}
select bit (Note 1)
0 0 : f1
RW
0 1 : f8
TXCK1
1 0 : f32
RW
1 1 : fC32
TYCK0
TYCK1
TZCK0
TZCK1
T1CK0
T1CK1
Timer Y count source
select bit (Note 1, 2)
Timer Z count source
select bit (Note 1, 4)
Timer 1 count source
select bit
b3 b2
0 0 : f1
RW
0 1 : f8
1 0 : On-chip oscillator output (Note 3) _RW
1 1 : fC32
b5 b4
0 0 : f1
RW
0 1 : f8
1 0 : Timer Y underflow
1 1 : fC32
RW
b7 b6
0 0 : f1
RW
0 1 : f8
1 0 : f32
1 1 : fC32
RW
Note 1: Avoid switching a count source, while a counter is in progress. Timer counter should be stopped before
switching a count source.
Note 2: The waveform extend function cannot be used when selecting f1 for count source.
Note 3: When attempting to select on-chip oscillator output, set the on-chip oscillation enable bit (CM14) of the
system clock control register (address 000716) for oscillation enabled.
Note 4: The waveform extend function cannot be used when selecting Timer Y underflow and f1 for count source.
Both the Timer Y primary underflow and the Timer Y secondary underflow are counted when selecting the
Timer Y underflow for count source.
Figure 12.2 Timer 1-related register
Rev.1.00 Oct 20, 2004 page 72 of 222
REJ09B0007-0100Z