Hitachi SH7751 Hardware Manual page 289

Superh risc engine
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Bit 9—PLL Circuit 2 Enable (PLL2EN): Specifies whether PLL circuit 2 is on or off.
Bit 9: PLL2EN
0
1
Bits 8 to 6—CPU Clock Frequency Division Ratio (IFC): These bits specify the CPU clock
frequency division ratio with respect to the input clock, 1/2 frequency divider, or PLL circuit 1
output frequency.
Bit 8: IFC2
Bit 7: IFC1
0
0
1
1
0
Other than the above
Bits 5 to 3—Bus Clock Frequency Division Ratio (BFC): These bits specify the bus clock
frequency division ratio with respect to the input clock, 1/2 frequency divider, or PLL circuit 1
output frequency.
Bit 5: BFC2
Bit 4: BFC1
0
0
1
1
0
Other than the above
Bits 2 to 0—Peripheral Module Clock Frequency Division Ratio (PFC): These bits specify the
peripheral module clock frequency division ratio with respect to the input clock, 1/2 frequency
divider, or PLL circuit 1 output frequency.
Rev. 3.0, 04/02, page 250 of 1064
Description
PLL circuit 2 is not used
PLL circuit 2 is used
Bit 6: IFC0
0
1
0
1
0
1
Bit 3: BFC0
0
1
0
1
0
1
Description

1

1/2

1/3

1/4

1/6

1/8
Setting prohibited (Do not set)
Description

1

1/2

1/3

1/4

1/6

1/8
Setting prohibited (Do not set)
(Initial value)

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