Renesas R8C/18 Series Hardware Manual page 141

R8C/18 Group, R8C/19 Group
TZS bit in
TZMR register
Count source
Prescaler Z
underflow signal
Contents of timer Z
IR bit in
TZIC register
TZOPL bit in
PUM register
TZOUT pin output
Figure 14.18 Operating Example of Timer Z in Programmable Waveform Generation Mode
Rev.1.30 Apr 14, 2006
REJ09B0222-0130
Set to 1 by program
1
0
01h 00h
1
0
Set to 0 by program
1
0
Waveform
output starts
"H"
"L"
Primary period
The above applies under the following conditions.
PREZ = 01h, TZPR = 01h, TZSC = 02h
TZOC register TZOCNT bit = 0
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Timer Z
secondary
reloads
02h 01h 00h
Set to 0 when interrupt request
is acknowledged, or set by
program
Waveform
Waveform
output inverted
output inverted
Secondary period
14. Timers
Timer Z
primary
reloads
01h 00h 02h
Primary period