US38024-BAG1 Renesas Electronics America, US38024-BAG1 Datasheet - Page 138

• Manufacturer Part Number: US38024-BAG1
• Description: DEV EVALUATION KIT H8/38024
• Manufacturer: Renesas Electronics America
• Series: H8®r
• Type: MCUr

Specifications of US38024-BAG1

• Contents: 2G (Second-generation) Evaluation Board, HEW debugger support, Cable and CD-ROM
• For Use With/related Products: H8/38024
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Section 4 Clock Pulse Generators
4.5.1
Figure 4.14 shows the oscillation waveform (OSC2), system clock (φ), and microcomputer
operating mode when a transition is made from standby mode, watch mode, or subactive mode, to
active (high-speed/medium-speed) mode, with an oscillator element connected to the system clock
oscillator.
As shown in figure 4.13, as the system clock oscillator is halted in standby mode, watch mode,
and subactive mode, when a transition is made to active (high-speed/medium-speed) mode, the
sum of the following two times (oscillation stabilization time and wait time) is required.
Rev. 8.00 Mar. 09, 2010 Page 116 of 658
REJ09B0042-0800
Modification
point
(3) Oscillator Circuit Modification Suggestion 2
Figure 4.13 Negative Resistance Measurement and Circuit Modification Suggestions
(1) Negative Resistance Measuring Circuit
Definition of Oscillation Stabilization Wait Time
C2
C1
C2
C1
Negative resistance,
addition of −R
Rf
Rf
OSC1
OSC2
OSC1
OSC2
Modification
point
(2) Oscillator Circuit Modification Suggestion 1
(4) Oscillator Circuit Modification Suggestion 3
C1
Modification
point
C2
C2
C1
C3
Rf
Rf
OSC1
OSC2
OSC1
OSC2