
R8C/14 Group, R8C/15 Group 13. Timers
Rev.2.10 Jan 19, 2006 Page 101 of 253
REJ09B0164-0210
Figure 13.14 TZOC and PUM Registers
Timer Z Output Control Register
(3)
Symbol Address After Reset
TZOC
008Ah 00h
Bit Symbol Bit Name Function RW
NOTES :
1.
2.
3. If executing an instruction which changes this register w hen the TZOS bit is set to “1” (during count), the TZOS bit is
automatically set to “0” (one-shot stop) when the count is completed while the instruction is executed. If this causes
some problems, execute an instruction which changes this register w hen the TZOS
bit is set to “0” (one-shot stop).
b3 b2 b1 b0
TZOS RW
0
b7 b6 b5 b4
Timer Z One-shot Start Bit
(1)
0 : One-shot stops
1 : One-shot starts
Reserved Bit Set to “0”
RW
—
(b1)
RW
Timer Z Programmable Waveform
Generation Output Switch Bit
(2)
0 : Outputs programmable waveform
1 : Outputs value in P1_3 port register
TZOCNT
This bit is set to “0” w hen the output of one-shot waveform is completed. Set the TZOS bit to “0” when the
waveform output is stopped by setting the TZS bit in the TZMR register to “0” (count stop) during the one-shot
waveform output.
This bit is enabled only when operating in programmable waveform generation mode.
Nothing is assigned. When write, set to “0”.
When read, its content is “0”.
—
(b7-b3)
—
Timer Z Waveform Output Control Register
Symbol Address After Reset
PUM
0084h 00h
Bit Symbol Bit Name Function RW
INT0
____
Pin One-shot Trigger Control 0 : INT0
____
pin one-shot trigger disabled
Bit (Timer Z)
(2)
1 : INT0
____
pin one-shot trigger enabled
INT0
____
Pin One-shot Trigger Polarity
Select Bit (Timer Z)
(1)
NOTES :
1.
2.
When the INOSEG bit is enabled only when the INT0PL bit in the INTEN register is set to “0” (one edge).
Set the INOSTG bit to “1” w hen setting the INT0EN bit in the INTEN register and the INOSEG bit in the PUM register.
0
b3 b2
Function varies depending on operating
mode
b1 b0
0
—
(b4-b0)
RW
b7 b6 b5 b4
000
Reserved Bit Set to “0”
TZOPL RW
RW
INOSEG RW
0 : Falling edge trigger
1 : Rising edge trigger
INOSTG
Timer Z Output Level Latch
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