HD6417641 RENESAS [Renesas Technology Corp], HD6417641 Datasheet - Page 194
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HD6417641
Manufacturer Part Number
HD6417641
Description
Manufacturer
RENESAS [Renesas Technology Corp]
Datasheet
1.HD6417641.pdf
(1036 pages)
- Current page: 194 of 1036
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Section 4 Clock Pulse Generator (CPG)
Rev. 4.00 Sep. 14, 2005 Page 144 of 982
REJ09B0023-0400
CKIO
CKIO2
XTAL
EXTAL
MD2
MD0
[Legend]
FRQCR:
STBCR:
STBCR2:
STBCR3:
STBCR4:
Frequency control register
Standby control register
Standby control register 2
Standby control register 3
Standby control register 4
oscillator
Crystal
Figure 4.1 Block Diagram of Clock Pulse Generator
Clock frequency
control circuit
FRQCR
PLL circuit 1
(×1, 2, 3, 4)
PLL circuit 2
Clock pulse generator
(× 2,4)
Internal bus
CPG control unit
Bus interface
STBCR
Divider
×1
×1/2
×1/3
×1/4
STBCR2
Standby control circuit
STBCR3
Internal clock
(Iφ)
Bus clock
(Bφ = CKIO)
Peripheral clock
(Pφ)
STBCR4
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