NEC 78K0R/KE3 User Manual page 155

Figure 5-9. Format of Internal High-Speed Oscillator Trimming Register (HIOTRM)
Address: F00F2H After reset: 10H
Symbol 7
HIOTRM 0
TTRM4
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Caution The internal high-speed oscillation frequency becomes faster/slower by increasing/decreasing
the HIOTRM value to a value larger/smaller than a certain value.
frequency becoming slower/faster by increasing/decreasing the HIOTRM value does not occur.
CHAPTER 5 CLOCK GENERATOR
R/W
6 5
0 0 TTRM4
TTRM3 TTRM2 TTRM1
0 0
0 0
0 0
0 0
0 1
0 1
0 1
0 1
1 0
1 0
1 0
1 0
1 1
1 1
1 1
1 1
0 0
0 0
0 0
0 0
0 1
0 1
0 1
0 1
1 0
1 0
1 0
1 0
1 1
1 1
1 1
1 1
User's Manual U17854EJ9V0UD
4 3 2
TTRM3 TTRM2
TTRM0
MIN.
−5.54%
0 0
−5.28%
0 1
−4.99%
1 0
−4.69%
1 1
−4.39%
0 0
−4.09%
0 1
−3.79%
1 0
−3.49%
1 1
−3.19%
0 0
−2.88%
0 1
−2.23%
1 0
−1.92%
1 1
−1.60%
0 0
−1.28%
0 1
−0.96%
1 0
−0.64%
1 1
0 0
0 1 +0%
1 0 +0.33%
1 1 +0.66%
0 0 +0.99%
0 1 +1.32%
1 0 +1.38%
1 1 +1.46%
0 0 +1.80%
0 1 +2.14%
1 0 +2.48%
1 1 +2.83%
0 0 +3.18%
0 1 +3.53%
1 0 +3.88%
1 1 +4.24%
1 0
TTRM1 TTRM0
Clock correction value
(2.7 V ≤ V ≤ 5.5 V)
DD
TYP. MAX.
−4.88% −4.02%
−4.62% −3.76%
−4.33% −3.47%
−4.03% −3.17%
−3.73% −2.87%
−3.43% −2.57%
−3.13% −2.27%
−2.83% −1.97%
−2.53% −1.67%
−2.22% −1.36%
−1.91% −1.31%
−1.60% −1.28%
−1.28% −0.96.%
−0.96% −0.64%
−0.64% −0.32%
−0.32% ±0%
±0% (default)
+0.32% +0.64%
+0.65% +0.97%
+0.98% +1.30%
+1.31% +1.63%
+1.64% +1.96%
+1.98% +2.30%
+2.32% +2.98%
+2.66% +3.32%
+3.00% +3.66%
+3.34% +4.00%
+3.69% +4.35%
+4.04% +4.70%
+4.39% +5.05%
+4.74% +5.40%
+5.10% +5.76%
A reversal, such as the
155