H838024R datasheet(13/697 Pages) RENESAS

13 / 697 page

Rev. 7.00 Mar 10, 2005 page xiii of xlii

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5.1 Overview

Figure 5.1 Mode

Transition Diagram

120

Notes amended

Notes: 1. A transition between different modes cannot be

made to occur simply because an interrupt request is

generated. Make sure that interrupts are enabled.

5.1.1 System Control

Registers

System Control

Bits 6 to 4

123

Note amended

Note:

If an external clock is being input, set standby timer select to

external clock mode before mode transition. Also, do not set

standby timer select to external clock mode if no external clock

is used. 8,192 states (STS2 = STS1 = STS0 = 0) is

recommended if the on-chip oscillator is used on the H8/38124

Group.

System Control

Bit 4

125

Description amended

When

OSC = 2 to 20 MHz, clear NESEL to 0.

5.3.3 Oscillator

Stabilization Time

after Standby Mode is

Cleared

Table 5.4(1) Clock

Frequency and

Stabilization Time

(H8/38024,

H8/38024S,

H8/38024R Group)

Table 5.4(2) Clock

Frequency and

Stabilization Time

(H8/38124 Group)

129

Table amended

Wait Time

2 states

(Use prohibited with other than

external clock)

6.1 Overview

143

Description amended and note deleted

F-ZTAT™ versions of the H8/38124 and H8/38122 are

available. The former has 32 Kbytes, and the latter 16 Kbytes,

of flash memory.

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