Datasheet

FS98O22
Rev. 1.6 44/146
5.4. Beeper Clock
Table 5-10 beeper clock register table
Address Name
Referenced
Section
Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
V
alue on Power
on Reset
14H MCK 5 M7_CK M6_CK M5_CK M3_CK M2_CK M1_CK M0_CK 00000000
15H PCK
4/5/7.5/10
ENPU
MP
S_CH1CK [1:0]
S_BEE
P
S_PCK
00000000
FS98O22 has a Beeper Clock which is used as the buzzer source. (Please refer to Section 7.5 for how to use
Buzzer) User could change the Beeper clock frequency by setting M0_CK, M1_CK, M3_CK and S_BEEP
register flags according to Table 5-11, Table 5-12 and Table 5-13.
Table 5-11 MCK selection table
M3_CK M0_CK
MCK
X 0 ICK
0 1 ECK
1 1 ECK/2
Table 5-12 CLK selection table
M1_CK
CL
K
0 MCK
1 MCK/4
Table 5-13 beeper clock selection table
M0_CK S_BEEP Beeper Clock
X 0 CLK/250
0 1 CLK/375
1 1 ECK/8
FORTUNE'
Properties
For Reference Only