HD6473847RHV Datasheet, PDF (132/546 Pages) Renesas Technology Corp – Renesas 8-Bit Single-Chip Microcomputer H8 Family / H8/300L Super Low Power Series

Section 4 Clock Pulse Generators
4.4 Subclock Generator
Figure 4.8 shows a block diagram of the subclock generator. Note that on the H8/38104 Group the
subclock oscillator can be disabled by programs by setting the SUBSTP bit in the OSCCR
register. The register setting to disable the subclock oscillator should be made in the active mode.
When restoring operation of the subclock oscillator after it has been disabled using the OSCCR
register, it is necessary to wait for the oscillation stabilization time (typ = 8s) to elapse before
using the subclock.
X2
10 M
X1
Note : Resistance is a reference value.
Figure 4.8 Block Diagram of Subclock Generator
Rev. 7.00 Mar. 08, 2010 Page 100 of 510
REJ09B0024-0700