R8C/13 Group
12.2 Timer (Timer Y)
Timer Y, Z mode register
b7 b6 b5 b4 b3 b2 b1 b0
Symbol
TYZMR
Address
008016
After reset
0016
0
Bit symbol
TYMOD0
Function
0 : Timer mode
RW
RW
Bit name
Timer Y operation
mode bit
INT2/CNTR1 polarity
switching bit(1)
0 : Rising edge
1 : Falling edge
R1EDG
TYWC
RW
0 : Write to reload register and counter
simultaneously
1 : Write to reload register
Timer Y write
control bit(2)
RW
RW
0 : Stops counting
1 : Starts counting
Timer Y count
start flag
TYS
Timer Z-related bit
TZMOD0
TZMOD1
RW
RW
TZWC
TZS
RW
RW
NOTES:
1. The IR bit in the INT2IC register may be set to “1” (interrupt requested) when the R1EDG bit is rewritten.
Refer to the paragraph 1.2.5 “Changing Interrupt Factor” in the Usage Notes Reference Book.
2. When TYS bit= 1 (starts counting), the value set in the TYWC bit is valid. If TYWC bit=0, the timer Y count value is
written to both reload register and counter. If TYWC bit=1, the timer Y count value is written to the reload register
only. When TYS bit=0 (stops counting), the timer Y count value is written to both reload register and counter
regardless of how the TYWC bit is set.
Timer Y, Z waveform output control register
b7 b6 b5 b4 b3 b2 b1 b0
Symbol
PUM
Address
008416
After reset
0016
0
0 0 0
Bit symbol
Bit name
Reserved bit
Function
RW
RW
Must set to “0”
(b3-b0)
TYOPL
Timer Y output level
latch
Invalid in timer mode
RW
TZOPL
Timer Z-related bits
RW
RW
INOSTG
INOSEG
RW
Figure 12.15 TYZMR Register and PUM Register in Timer Mode
Rev.1.20 Jan 27, 2006 page 84 of 205
REJ09B0111-0120
RENESAS [ RENESAS TECHNOLOGY CORP ]
