863
Bit 5—Noise Elimination Sampling Frequency Select (NESEL): This bit selects the sampling
frequency of the subclock (øSUB) generated by the subclock oscillator is sampled by the clock (ø)
generated by the system clock oscillator. Set this bit to 0 when ø=5MHz or more.
Bit 5
NESEL
Description
0
Sampling using 1/32 xø (Initial
value)
1
Sampling using 1/4 xø
Bit 4—Subclock enable (SUBSTP): This bit enables/disables subclock generation.
Bit 4
SUBSTP Description
0
Enables subclock generation
(Initial value)
1
Disables subclock generation
Bit 3—Oscillation Circuit Feedback Resistance Control Bit (RFCUT): This bit turns the
internal feedback resistance of the main clock oscillation circuit ON/OFF.
Bit 3
RFCUT
Description
0
When the main clock is oscillating, sets the feedback resistance ON. When the main
clock is stopped, sets the feedback resistance OFF.
(Initial value)
1
Sets the feedback resistance OFF.
Bit 2—Reserved: Should always be written with 0.
Содержание H8S/2631
Страница 28: ...xviii Appendix G Package Dimensions 1154 ...
Страница 341: ...316 Transfer SAR or DAR DAR or SAR Block area First block Nth block Figure 9 8 Memory Mapping in Block Transfer Mode ...
Страница 918: ...905 ø DREQ0 DREQ1 tDRQS tDRQH Figure 25 19 DMAC DREQ Input Timing ...
Страница 955: ...943 A 2 Instruction Codes Table A 2 shows the instruction codes ...