SH7615 Datasheet, PDF (160/925 Pages) Renesas Technology Corp – 32-Bit RISC Microcomputer SuperH
RISC engine Family/SH7600 Series

3.2.6 Clock Modes and Frequency Ranges
The following table shows the operating modes and the associated frequency ranges for input
clocks.
Clock Input
PLL Circuit Internal Clock^*2,*3
Mode Pin
Input
Frequency
Range (MHz)
PLL1 PLL2
Iφ
Eφ Pφ
(MHZ) (MHZ) (MHZ)
CKIO
Output
(MHz)
0, 1 EXTAL or crystal 8–15.625
resonator^*1
On On
8– 8– 8–
8–62.5
62.5 62.5 31.25
Off On
8– 8– 8–
8–62.5
62.5 62.5 31.25
On Off
8– 8– 8–
8–15.625
62.5 15.625 15.625
1–31.25
Off Off
1– 1– 1–
1–31.25
31.25 31.25 31.25
2
8–15.625
Off On
8– 8– 8–
8–62.5
62.5 62.5 31.25
1–31.25
Off
1– 1– 1–
1–31.25
31.25 31.25 31.25
3
8–15.625
On
8– 8– 8–
—
62.5 62.5 31.25
1–31.25
Off
1– 1– 1–
31.25 31.25 31.25
4, 5 CKIO
16–31.25
On Off
16– 16– 16– —
62.5 31.25 31.25
1–31.25
Off
1– 1– 1–
31.25 31.25 31.25
6
1–31.25
Off
1– 1– 1–
31.25 31.25 31.25
Notes: 1. When a crystal resonator is used, set the frequency in the range of 8 to 15.625 MHz.
2. Set the frequency modification register so that the frequency of all internal clocks is 1
MHz or higher.
3. Use internal clock frequencies such that Iφ ≥ Eφ ≥ Pφ.
Rev. 2.00, 03/05, page 122 of 884