BAT32G1x9 user manual | Chapter 11 Real-time clock
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Rev.1.02
11.3.2
Real-time clock selection register (RTCCL).
The count clock (fRTC) of the real-time clock and the 15-bit interval timer can be selected via RTCCL.
Figure 11-3 Format of the real-time clock selection register (RTCCL).
Address: 0x4004047C
after reset:
00H R/W
Symbol
7 6 5 4 3 2 1 0
RTCCL
RTCCL7
Selection of clock source for real-time clocks, 15-bit interval timers for
counting clocks
0
Select the high-speed system clock (fMX).
1
Choose the high-speed internal oscillator (fhoco).
RTCCKS1
RTCCKS0
RTCCL6
RTCCL5
Selection of operating clocks for real-time clocks, 15-bit interval
timers for counting clocks
0
0
x
x
Subsystem clock (fSUB).
0
1
Low-speed internal oscillator clock (fIL) (WUTMMCK0 must be set
to 1).
1
0
0
1
Master clock fmax/fhoco (selected via RTCCL7)/1952
1
0
0
0
Master clock fmax/fhoco (selected via RTCCL7)/1464
1
0
1
0
Master clock fmax/fhoco (selected via RTCCL7)/976
1
1
0
0
Master clock fmax/fhoco (selected via RTCCL7)/488
1
1
1
0
Master clock fmax/fhoco (selected via RTCCL7)/244
RTCCL7
RTCCL6
RTCCL5
0
0
0
RTCCKS1
RTCCKS0
