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(5)
CPU operation clock status register (CCLS)
Status flags that indicate the operation status of the CPU operating clock.
This register can be read in 8-bit or 1-bit units.
Symbol
CCLS
R/W
CCLSF
0
1
(6)
Ring-OSC mode register (RCM)
This is an 8-bit register that sets the operation mode of the ring oscillator (Ring-OSC).
This register can be read or written in 8-bit or 1-bit units.
RESET input clears this register to 00H.
Symbol
RCM
R/W
RSTOP
0
1
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Chapter 6 Clock Generator
Figure 6-6: CPU Operation Clock Status Register (CCLS) Format
7
6
5
4
0
0
0
0
R
R
R
R
Operating with main system clock (f
Operating with ring OSC (f
)
R
Figure 6-7: Ring-OSC Mode Register (RCM) Format
7
6
5
4
0
0
0
0
R
R
R
R
Ring-OSC Operate
Ring-OSC Stop
User's Manual U16702EE3V2UD00
3
2
1
0
0
0
CCLSF FFFFF82EH
R
R
R
Status of operating clock
)
X
3
2
1
0
0
0
RSTOP FFFFF80CH
R
R
R
Ring-OSC operation select
0
Address
After reset
00H
R
0
Address
After reset
00H
R/W
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