h8s-2635 Renesas Electronics Corporation., h8s-2635 Datasheet - Page 998

• Manufacturer Part Number: h8s-2635
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2600 Series
• Manufacturer: Renesas Electronics Corporation.

Section 22A Clock Pulse Generator (H8S/2636 Group, H8S/2638 Group, H8S/2630 Group)
22A.5 Medium-Speed Clock Divider
The medium-speed clock divider divides the system clock to generate /2, /4, /8, /16, and /32.
22A.6 Bus Master Clock Selection Circuit
The bus master clock selection circuit selects the system clock ( ) or one of the medium-speed
clocks ( /2, /4, or /8, /16, and /32) to be supplied to the bus master, according to the settings
of the SCK2 to SCK0 bits in SCKCR.
22A.7 Subclock Oscillator
Connecting 32.768kHz Quartz Oscillator (U Mask, W Mask): To supply a clock to the
subclock divider, connect a 32.768kHz quartz oscillator, as shown in figure 22A-8. See section
22A.3.1, “Notes on Board Design” for notes on connecting quartz oscillators.
Figure 22A-8 Example Connection of 32.768kHz Quartz Oscillator
Figure 22A-9 shows the equivalence circuit for a 32.768kHz oscillator.
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Figure 22A-9 Equivalence Circuit for 32.768kHz Oscillator
Rev. 6.00 Feb 22, 2005 page 938 of 1484
REJ09B0103-0600