R0K572030S000BE Renesas Electronics America, R0K572030S000BE Datasheet - Page 137

Manufacturer Part Number

R0K572030S000BE

KIT DEV FOR SH7203

Manufacturer

Renesas Electronics America

Renesas Starter Kits (RSK)r

CPU Board, LCD Module, E10A-Lite Emulator, Cable, QuickStart Guide and CD-ROM

Silicon Manufacturer

Kit Contents

Silicon Family Name

Silicon Core Number

R5S72030W200FP

Tool / Board Applications

General Purpose MCU, MPU, DSP, DSC

Mcu Supported Families

Lead Free Status / RoHS Status

Contains lead / RoHS non-compliant

For Use With/related Products

Lead Free Status / Rohs Status

This LSI has a clock pulse generator (CPG) that generates an internal clock (Iφ), a peripheral clock

(Pφ), and a bus clock (Bφ). The CPG consists of a crystal oscillator, PLL circuits, and divider

• Four clock operating modes

• Three clocks generated independently

• Frequency change function

• Power-down mode control

The mode is selected from among the four clock operating modes based on the frequency

range to be used and the input clock type: the clock from crystal resonator, the external clock

or the clock for USB.

An internal clock (Iφ) for the CPU and cache; a peripheral clock (Pφ) for the on-chip

peripheral modules; a bus clock (Bφ = CKIO) for the external bus interface

Internal and peripheral clock frequencies can be changed independently using the PLL (phase

locked loop) circuits and divider circuits within the CPG. Frequencies are changed by software

using frequency control register (FRQCR) settings.

The clock can be stopped in sleep mode, software standby mode, and deep standby mode, and

specific modules can be stopped using the module standby function. For details on clock

control in the power-down modes, see section 28, Power-Down Modes.

Section 4 Clock Pulse Generator (CPG)

Rev. 3.00 Sep. 28, 2009 Page 105 of 1650

Section 4 Clock Pulse Generator (CPG)

REJ09B0313-0300