HD6417320 RENESAS [Renesas Technology Corp], HD6417320 Datasheet - Page 516

• Manufacturer Part Number: HD6417320
• Description: Renesas 32-Bit RISC Microcomputer SuperHTM RISC engine Family / SH7700 Series
• Manufacturer: RENESAS [Renesas Technology Corp]

Section 11
A block diagram of the CPG is shown in figure 11.1.
Rev. 3.00 Jan. 18, 2008 Page 454 of 1458
REJ09B0033-0300
EXTAL_USB
MD2 to MD0
XTAL_USB
EXTAL
XTAL
CKIO
Clock Pulse Generator (CPG)
FRQCR : Frequency control register
UCKCR : USBH/USBF clock control register
STBCR : Standby control register 1
STBCR2 : Standby control register 2
oscillator
oscillator
Crystal
Crystal
FRQCR
Clock frequency
control unit
Figure 11.1
UCLKCR
CPG control unit
PLL circuit 1
(×1, 2, 3, 4)
PLL circuit 2
Oscillator circuit
(×1, 4)
Internal bus
Block Diagram of CPG
STBCR
Bus interface
Divider 1
× 1
× 1/2
× 1/3
× 1/4
× 1/6
STBCR3 : Standby control register 3
STBCR4 : Standby control register 4
STBCR5 : Standby control register 5
STBCR2
Standby control unit
STBCR3
STBCR4 STBCR5
USBH/USBF clock
Internal clock
(Iφ)
Bus clock
(Bφ frequency is the same
Peripheral clock
(Pφ)
as CKIO frequency.)