Renesas R61509V - Manual (Page 69)

R61509V Target Spec
Rev. 0.11 April 25, 2008, page 69 of 181
Power Control 2 (R101h)
DC1 [2:0]: Sets step-up clock frequency for Step-up Circuit 2. The step-up clock is in synchronization
with internal clock.
Table 42 Step-up Frequency (Step-up Circuit 1)
DC1[2:0]
Step-up Circuit 2
Step-up frequency (fDCDC2)
3’h0 Step-up Circuit 2 halts
3’h1 Setting inhibited
3’h2 Line frequency / 4
3’h3 Line frequency / 8
3’h4 Line frequency / 16
3’h5 Setting inhibited
3’h6 Setting inhibited
3’h7 Setting inhibited
R/W RS IB15 IB14 IB13 IB12 IB11 IB10 IB9 IB8 IB7 IB6 IB5 IB4 IB3 IB2 IB1 IB0
R/W 1 0 0 0 0 0
DC1
[2]
DC1
[1]
DC1
[0]
0
DC0
[2]
DC0
[1]
DC0
[0]
0
VC
[2]
VC
[1]
VC
[0]
Default 0 0 0 0 0 0 1 0 0 1 0 0 0 1 1 1
fosc : Internal clock frequency
Number of clock per line : RTN*[4:0] (RTNI or RTNE)
Division ratio : DIV*[1:0] (DIVI or DIVE)
N
: DC1 [2:0]
Step-up clock frequency (f
DCDC2
) =
Internal clock frequency f
OSC
[Hz]
[Step-up clock frequency for Step-up Circuit 2]
Number of clock per line x Division ratio x 2 (N)
Line frequency
2 (N)
=
[Hz]