Renesas H8S/2128 Series Technical Information PDF herunterladen (Seite 23)

Table 1.10 Clock Selections

Clock Command

Parameter

Configuration

Dialog Box Setting Notes

8 8 MHz internal clock

10 10 MHz internal clock Default

12 12.5 MHz internal clock

16 16 MHz internal clock

20 20 MHz internal clock

t Target

t2 Target/2 Not supported by the actual MCU.

Use this clock only when the required clock

duty cannot be obtained.

NOTE

The system clock (f

f) frequency is the same clock

frequency input to the XTAL and EXTAL when external clock

t is specified. For example, when a 20-MHz crystal

oscillator is connected to the XTAL and EXTAL of the user

system, the system clock (f

f) frequency is 20 MHz. When

external clock t2 is specified, the system clock (f

f) frequency

is 1/2 of the clock frequency input to the XTAL and EXTAL.

The frequency of the E6000 internal clock specified with

the HDI CLOCK command is applied to the system clock (f

f).

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Renesas H8S/2128 Series Technical Information Seite 23