Fujitsu MB86R02 Jade-D Hardware Manual page 106

MB86R02 'Jade-D' Hardware Manual V1.64
Bit field
No. Name
5-3 PADM[2:0]
2-0 HADM[2:0]
Note:
ARMACLK must not be slower than HACLK; moreover, HACLK may not be slower
than PACLK.
f
ARMCLK
5-26
PACLK frequency dividing mode
These bits set frequency dividing ratio of PACLK.
× (1/1)
000
f = f
PACLK CCLK
× (1/2)
001
f = f
PACLK CCLK
× (1/4)
010 f = f
PACLK CCLK
× (1/8) (initial value)
011 f = f
PACLK CCLK
× (1/16)
100 f = f
PACLK CCLK
Others Reserved (setting prohibited)
f : Clock frequency of PACLK
PACLK
f : Clock frequency of CCLK
CCLK
HACLK frequency dividing mode
These bits set frequency dividing ratio of HACLK.
× (1/1)
000
f = f
HACLK CCLK
× (1/2)
001
f = f
HACLK CCLK
× (1/4) (initial value)
010 f = f
HACLK CCLK
× (1/8)
011 f = f
HACLK CCLK
× (1/16)
100 f = f
HACLK CCLK
Others Reserved (setting prohibited)
f : Clock frequency of HACLK
HACLK
f : Clock frequency of CCLK
CCLK
>= f >= f
HACLK PACLK
Description