Technical information

R8C/14 Group, R8C/15 Group 13. Timers
Rev.2.10 Jan 19, 2006 Page 100 of 253
REJ09B0164-0210
Figure 13.13 PREZ, TZSC and TZPR Registers
Prescaler Z Register
Symbol Address After Reset
PREZ
0085h FFh
Mode Function Setting Range RW
Programmable Wait One-
shot Generation Mode
Counts internal count source or Timer X
underflow
00h to FFh
RW
Programmable One-shot
Generation Mode
Counts internal count source or Timer X
underflow
00h to FFh
RW
b0b7
Timer Mode RW
Counts internal count source or Timer X
underflow
00h to FFh
Programmable Waveform
Generation Mode
RW
Counts internal count source or Timer X
underflow
00h to FFh
Timer Z Secondary Register
Symbol Address After Reset
TZSC
0086h FFh
Mode Function Setting Range RW
NOTES :
1.
2.
Programmable Wait One-
shot Generation Mode
Counts underflow of Prescaler Z (one-shot
w idth is counted)
00h to FFh
WO
Programmable One-shot
Generation Mode
Disabled
——
Programmable Waveform
Generation Mode
WO
(2)
Counts underflow of Prescaler Z
(1)
00h to FFh
Disabled
—
b7
Each value in the TZPR register and TZSC register is reloaded to the counter alternately and counted.
The count value can be read out by reading the TZPR register even w hen the secondary period is being
counted.
b0
Timer Mode —
Timer Z Primary Register
Symbol Address After Reset
TZPR
0087h FFh
Mode Function Setting Range RW
NOTES :
1. Each value in the TZPR register and TZSC register is reloaded to the counter alternately and counted.
b0
Timer Mode RW
Counts underflow of Prescaler Z
b7
Programmable Waveform
Generation Mode
RW
Counts underflow of Prescaler Z
(1)
00h to FFh
00h to FFh
Programmable One-shot
Generation Mode
Counts underflow of Prescaler Z
(counts one-shot w idth)
00h to FFh
RW
Programmable Wait One-
shot Generation Mode
Counts underflow of Prescaler Z
(counts w ait period)
00h to FFh
RW