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SA-1110 Developer’s Manual 109
System Control Module
3FO
Force 32-kHz oscillator enable on.
This bit is used to allow software to force the SA-1110 to use the 32-kHz oscillator for
internal clocking functions instead of waiting for it to stabilize in the normal way. This
function is useful primarily to attain rapid functionality after a "warm" hardware reset when it
is known that the oscillator is stable. Use of this bit is intended for test purposes and some
customer use in special situations. It should be used with care, however, since setting this
bit when the 32-kHz oscillator is not stable will yield unpredictable results.
31..4 — Reserved
0h 9002 0010 PCFR Read/Write
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
Reserved
FO
FS
FP
OPDE
Reset 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Bits Name Description