SH7261 datasheet(110/1348 Pages) RENESAS

Part #	SH7261

Description	32-Bit RISC Microcomputer SuperHTM RISC engine Family / SH7260 Series

PDF	1348 Pages

Scroll/Zoom	100%

Manufacturer	RENESAS [Renesas Technology Corp]

Direct Link	http://www.renesas.com

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110 / 1348 page

Section 4 Clock Pulse Generator (CPG)

Rev. 2.00 Sep. 07, 2007 Page 78 of 1312

REJ09B0320-0200

Figure 4.1 shows a block diagram of the clock pulse generator.

CKIO

PLL circuit 2

(

×2, 4)

EXTAL

XTAL

MD_CLK1

MD_CLK0

FRQCR

STBCR

STBCR2

STBCR3

STBCR4

STBCR5

PLL circuit 1

(

×1, 2, 3, 4, 6, 8)

Crystal

oscillator

Peripheral bus

Bus interface

CPG control unit

Clock frequency

control circuit

Standby control circuit

On-chip oscillator

×1

×1/2

×1/3

×1/4

×1/6

×1/8

×1/12

Divider

Internal clock

φ, Max. :

120 MHz (Regular specifications),

100 MHz (Wide-range specifications))

Peripheral clock

φ, Max. 40 MHz)

Bus clock

φ = CKIO, Max. 60 MHz)

FRQCR:

STBCR:

STBCR2:

STBCR3:

STBCR4:

STBCR5:

[Legend]

Frequency control register

Standby control register

Standby control register 2

Standby control register 3

Standby control register 4

Standby control register 5

Figure 4.1 Block Diagram of Clock Pulse Generator

SH7261 Datasheet(PDF) 110 Page - Renesas Technology Corp

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