R0K572030S000BE Renesas Electronics America, R0K572030S000BE Datasheet - Page 142

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

Section 4 Clock Pulse Generator (CPG)

Rev. 3.00 Sep. 28, 2009 Page 110 of 1650

REJ09B0313-0300

In mode 2, the CKIO pin functions as an input pin and draws an external clock signal. The

PLL circuit shapes waveform and the frequency is multiplied according to the frequency

control register setting before the clock is supplied to the LSI. The frequency range of CKIO is

from 40 to 66.66 MHz. To reduce current consumption, fix the EXTAL pin (pull up, pull

down, connect to power supply, or connect to ground) and open the XTAL pin when the

SH7203 is used in mode 2. When USB is not used, fix the USB_X1 pin (pull up, pull down,

connect to power supply, or connect to ground) and open the USB_X2 pin.

In mode 3, clock is input from the USB_X1 pin or the crystal oscillator. The external clock is

input through this pin and waveform is shaped in the PLL circuit. Then the frequency is

multiplied according to the frequency control register setting before the clock is supplied to the

LSI. The frequency of CKIO is the same as that of the input clock (USB_X1/crystal resonator)

(48 MHz). To reduce current consumption, fix the EXTAL pin (pull up, pull down, connect to

power supply, or connect to ground) and open the XTAL pin when the SH7203 is used in

mode 3. When the USB crystal resonator is not used, open the USB_X2 pin.