BAT32G1x9 user manual | Chapter 7 Timer A
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Rev.1.02
7.3.2
The subsystem clock provides a mode control register (OSMC).
The operating clock of timer A can be selected by WUTMMCK0 bits.
The RTCLPC bit is a bit that reduces power consumption by stopping unwanted clock functions. For the setting
of the RTCLPC bit, refer to "Chapter 4 Clock Generation Circuit".
Set the OSMC registers via the 8-bit memory operation instructions. After generating a reset signal, the value
of this register changes to "00H".
Figure 7-3 the format of the mode control register (OSMC) provides for the sub-system clock
Address: 40020423H
after reset:
00HR/W
Symbol
76543210
OSMC
WUTMMCK0
Choice of real-time clock, 1
5-bit interval timer operating clock (f
RTC
) and timer
A
operating
clock
0
Subsystem clock (f
SUB
).
• The secondary system clock is a real-time clock and a
1
5-bit interval timer for the
operating clock.
• The low-speed internal oscillator cannot be selected as
the counting source for timer A.
1
Low-speed internal oscillator clock (f
IL
).
• The low-speed internal oscillator clock is a real-time clock and a
15-bit
interval timer for the
operating clock.
• Low-speed internal oscillator or subsystem clock can be selected as the
counting
source for timer
A.
RTCLPC
0
0
WUTMMCK0
0
0
0
0