
R8C/14 Group, R8C/15 Group 13. Timers
Rev.2.10 Jan 19, 2006 Page 114 of 253
REJ09B0164-0210
Figure 13.22 Operating Example in Programmable Wait One-Shot Generation Mode
Count Source
00h
01h
TZOPL Bit in PUM
Register
Contents of Timer Z
TZOUT Pin Output
IR Bit in TZIC
Register
Set to "0" when interrupt request is
accepted, or set by program
The above applies to the following conditions.
PREZ=01h, TZPR=01h, TZSC=02h
PUM register TZOPL bit=0, INOSTG bit=1 (INT0 one-shot trigger enabled)
INOSEG bit= 1 (rising edge trigger)
Prescaler Z Underflow
Signal
Timer Z secondary
reloads
02h 01h 00h 01h
Waveform output ends
INT0 Pin Input
Set to "0" by program
Wait starts
Waveform output starts
Count starts
Timer Z primary
reloads
TZS Bit TZMR
Register
TZOS Bit in TZOC
Register
Set to "0" when
counting ends
Set to "1" by program
Set to "1" by program, or set to "1" by INT0
pin input trigger
"1"
"0"
"1"
"0"
"1"
"0"
"1"
"0"
"1"
"0"
"H"
"L"
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