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HD6417705 Datasheet, PDF (318/739 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperH RISC engine Family/SH7700 Series | |||
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XTAL_USB
EXTAL_USB
CKIO
XTAL
EXTAL
MD2
MD1
MD0
Crystal
Oscillator
CPG oscillator circuit unit
PLL circuit 1
(Ã1, 2, 3, 4)
Divider 1
Ã1
Ã1/2
Ã1/3
Ã1/4
Crystal
Oscillator
PLL circuit 2
(Ã1, 2, 4)
USB clock
Internal clock
(IÏ)
Bus clock
(BÏ = CKIO)
Peripheral clock
(PÏ)
CPG control unit
Clock frequency
control circuit
Standby control circuit
FRQCR
UCLKCR
STBCR STBCR2 STBCR3
Bus interface
Peripheral bus
FRQCR: Frequency control register
STBCR: Standby control register
STBCR2: Standby control register 2
STBCR3: Standby control register 3
UCLKCR: USB clock control register
Figure 9.1 Block Diagram of Clock Pulse Generator
Rev. 2.00, 09/03, page 272 of 690
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