em6521 EM Microelectronic, em6521 Datasheet - Page 31
em6521
Manufacturer Part Number
em6521
Description
Mfp Version Of Em6621 Ultra Low Power Microcontroller With 4x20 Lcd Driver
Manufacturer
EM Microelectronic
Datasheet
1.EM6521.pdf
(68 pages)
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Table 7.3.4 Timer Clock Frequency Select
Table 7.3.5 Register RegMelPeri
The total timer period duration is calculated as following:
Where, Ck[n] is the timer clock frequency and Value(RegMelPeri) is the value of the register RegMelPeri.
Copyright © 2005, EM Microelectronic-Marin SA
FTimSel0
Bit
3
2
1
0
0
1
0
1
R
Name
Per[3]
Per[2]
Per[1]
Per[0]
FTimSel1
Duration = Value(RegMelPeri) x 1/Ck[n]
0
0
1
1
Reset
0
0
0
0
Timer Clock
R/W
W
W
W
W
Ck[3]
Ck[5]
Ck[7]
Ck[1]
31
On 32 KHz operation
Melody timer period MSB
Melody timer period LSB
Melody timer period
Melody timer period
Description
16 Hz
64 Hz
4 Hz
1 Hz
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EM6521
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