SH7713 datasheet(359/904 Pages) RENESAS

359 / 904 page

Section 11 On-Chip Oscillation Circuits

Rev.1.50 Aug. 30, 2006 Page 319 of 860

REJ09B0288-0150

Mode

FRQCR

Value

PLL

Circuit 1

PLL

Circuit 2

Clock

Ratio*

(I:B:P)

Frequency Range of

Input Clock and

Crystal Resonator

Frequency Range of

CKIO Pin

1103

On (x2)

Off

2:1:1/2

33.34 MHz to

66.67 MHz

33.34 MHz to 66.67

MHz

1104

On (x2)

Off

2:1:1/3

33.34 MHz to

66.67 MHz

33.34 MHz to 66.67

MHz

1204

On (x3)

Off

3:1:1/2

33.34 MHz to

66.67 MHz

33.34 MHz to 66.67

MHz

Notes: *

The input clock is 1.

Maximum frequency: I

φ = 200.00 MHz, Bφ (CKIO) = 66.67 MHz, Pφ = 33.34 MHz

1. Use the CKIO frequency within 33.34 MHz

≤ CKIO ≤ 66.67 MHz.

2. The input to divider 1 is the output of PLL circuit 1.

3. Use the internal clock frequency within 33.34 MHz

≤ Iφ ≤ 200.00 MHz.

The internal clock frequency is the product of the frequency of the CKIO pin, the

frequency multiplication ratio of PLL circuit 1 selected by the STC bit in FRQCR, and

the division ratio selected by the IFC bit in FRQCR.

Do not set the internal clock frequency lower than the CKIO pin frequency.

4. Use the peripheral clock frequency within 8.34 MHz

≤ Pφ ≤ 33.34 MHz.

The peripheral clock frequency is the product of the frequency of the CKIO pin, the

frequency multiplication ratio of PLL circuit 1 selected by the STC bit in FRQCR, and

the division ratio selected by the PFC bit in FRQCR.

Do not set the peripheral clock frequency higher than the frequency of the CKIO pin.

× 1, × 2, or × 3 can be used as the multiplication ratio of PLL circuit 1. × 1, × 1/2, or × 1/3

can be selected as the division ratio of an internal clock.

× 1/2, × 1/3, × 1/4, or

× 1/6 can be selected as the division ratio of a peripheral clock. Set the rate in FRQCR.

6. The output frequency of PLL circuit 1 is the product of the CKIO frequency and the

multiplication ratio of PLL circuit 1. Use the output frequency under 200.00 MHz.

SH7713 Datasheet(PDF) 359 Page - Renesas Technology Corp

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