HD6417660 RENESAS [Renesas Technology Corp], HD6417660 Datasheet - Page 372

• Manufacturer Part Number: HD6417660
• Description: Renesas 32-Bit RISC Microcomputer
• Manufacturer: RENESAS [Renesas Technology Corp]

A block diagram of the CPG is shown in figure 11.1.
Rev. 1.00, 02/04, page 334 of 804
CKIO
XTAL
EXTAL
MD2
MD1
FRQCR
STBCR
STBCR2
STBCR3
STBCR4
MCCR
: Frequency control register
: Standby control register
: Standby control register 2
: Standby control register 3
: Standby control register 4
: Memory clock control register
oscillator
Crystal
Figure 11.1 Block Diagram of Clock Pulse Generator
Clock frequency
control circuit
FRQCR
( × 1, 2, 3, 4)
PLL circuit 1
PLL circuit 2
Clock pulse generator
( × 2)
Internal bus
CPG control unit
Bus interface
STBCR STBCR2 STBCR3 STBCR4
Divider 1
× 1
× 1/2
× 1/3
× 1/4
× 1/6
× 1/8
× 1/12
Standby control circuit
Internal clock
(Iφ)
Bus clock
(Bφ = CKIO)
Peripheral clock
(Pφ)
MCCR