ISD94100 Series Technical Reference Manual
Sep 9, 2019
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Rev1.09
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101 = Clock source from internal low speed RC oscillator (LIRC).
111 = Clock source from internal high speed RC oscillator (HIRC).
Others = Reserved. Do not use.
[19]
Reserved
Reserved. Any values read should be ignored. When writing to this field always write with
reset value.
[18:16]
TMR2SEL
TIMER2 Clock Source Selection
000 = Clock source from external high speed crystal oscillator (HXT).
001 = Clock source from external low speed crystal oscillator (LXT).
010 = Clock source from PCLK1.
011 = Clock source from external clock TM2 pin.
101 = Clock source from internal low speed RC oscillator (LIRC).
111 = Clock source from internal high speed RC oscillator (HIRC).
Others = Reserved. Do not use.
[15]
Reserved
Reserved. Any values read should be ignored. When writing to this field always write with
reset value.
[14:12]
TMR1SEL
TIMER1 Clock Source Selection
000 = Clock source from external high speed crystal oscillator (HXT).
001 = Clock source from external low speed crystal oscillator (LXT).
010 = Clock source from PCLK0.
011 = Clock source from external clock TM1 pin.
101 = Clock source from internal low speed RC oscillator (LIRC).
111 = Clock source from internal high speed RC oscillator (HIRC).
Others = Reserved. Do not use.
[11]
Reserved
Reserved. Any values read should be ignored. When writing to this field always write with
reset value.
[10:8]
TMR0SEL
TIMER0 Clock Source Selection
000 = Clock source from external high speed crystal oscillator (HXT).
001 = Clock source from external low speed crystal oscillator (LXT).
010 = Clock source from PCLK0.
011 = Clock source from external clock TM0 pin.
101 = Clock source from internal low speed RC oscillator (LIRC).
111 = Clock source from internal high speed RC oscillator (HIRC).
Others = Reserved. Do not use.
[7:2]
Reserved
Reserved. Any values read should be ignored. When writing to this field always write with
reset value.
[1:0]
WDTSEL
Watchdog Timer Clock Source Selection (Write Protected)
00 = Reserved. Do not use.
01 = Clock source from external low speed crystal oscillator (LXT).
10 = Clock source from HCLK/2048.
11 = Clock source from internal low speed RC oscillator (LIRC).
Note:
This bit is write protected. Refer to the SYS_REGLCTL register.