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S3C2416X RISC MICROPROCESSOR
MPLLCON
RESERVED
MPLLEN_STOP
ONOFF
MDIV
RESERVED
PDIV
RESERVED
SDIV
The output frequencies of MPLL can be calculated using the following equations:
F
= (m x F
) / (p x 2
OUT
IN
Fvco = (m x F
) / p
IN
where, m = MDIV, p = PDIV, s = SDIV, Fin = 10~30Mhz
Don't set the value PDIV[5:0] or MDIV[9:0] to all zeros. (6'b00 0000 / 10'b00 0000 0000)
Although there is the equation for choosing PLL value, we strongly recommend only the values in the PLL
value recommendation table. If you have to use other values, please contact us.
FIN
(MHz)
12
12
12
12
12
12
12
Bit
[31:26]
-
[25]
MPLL ON/OFF in STOP mode. 0:OFF, 1:ON
[24]
MPLL ON/OFF. 0:ON, 1:OFF
[23:14]
Main divider value of MPLL
[13:11]
-
[10:5]
Pre-divider value of MPLL
[4:3]
-
[2:0]
Post-divider value of MPLL
S
) (should be 40~1600MHz)
(should be 800~1600MHz)
Target FOUT
(MHz)
240
400
450
500
534
600
800
Description
NOTE
MDIV
PDIV
(decimal)
(decimal)
320
4
400
3
225
3
250
3
267
3
300
3
400
3
SYSTEM CONTROLLER
Initial Value
0x00
0x215
0x0
0x6
0x0
0x0
SDIV
Duty
(decimal)
2
40~60%
2
40~60%
1
40~60%
1
40~60%
1
40~60%
1
40~60%
1
40~60%
0
1
2-23
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