NEC 78K0S/KA1+ User Manual page 210

(3) Example of setting baud rate
Baud Rate f = 10.0 MHz
XP
[bps]
TPS63 to k Calculated
TPS60
600 6H 130
1200 5H 130
2400 4H 130
4800 3H 130
9600 2H 130
10400 1H 240
19200 1H 130
31250 0H 160
38400 0H 130
76800 0H 65
115200 0H 43
153600 0H 33
230400 0H 22
Remark TPS63 to TPS60: Bits 3 to 0 of clock selection register 6 (CKSR6) (setting of base clock (f
k:
f :
XP
ERR:
210
CHAPTER 11 SERIAL INTERFACE UART6
Table 11-4. Set Data of Baud Rate Generator
ERR[%] TPS63 to
Value TPS60
601 0.16 6H
1202 0.16 5H
2404 0.16 4H
4808 0.16 3H
9615 0.16 2H
10417 0.16 1H
19231 0.16 1H
31250 0.00 0H
38462 0.16 0H
76923 0.16 0H
116279 0.94 0H
−1.36
151515 0H
−1.36
227272 0H
Value set by MDL67 to MDL60 bits of baud rate generator control register 6
(BRGC6) (k = 8, 9, 10, ..., 255)
Oscillation frequency of clock to peripheral hardware
Baud rate error
User's Manual U16898EJ3V0UD
f = 8.38 MHz
XP
k Calculated ERR[%] TPS63 to
Value TPS60
109 601 0.11
109 1201 0.11
109 2403 0.11
109 4805 0.11
109 9610 0.11
201 10423 0.22
109 19220 0.11
134 31268 0.06
109 38440 0.11
−0.80
55 76182
36 116389 1.03
27 155185 1.03
18 232778 1.03
f = 4.19 MHz
XP
k Calculated ERR[%]
Value
5H 109 601 0.11
4H 109 1201 0.11
3H 109 2403 0.11
2H 109 4805 0.11
1H 109 9610 0.11
1H 101 10475 −0.28
0H 109 19220 0.11
0H 67 31268 0.06
−0.80
0H 55 38090
0H 27 77693 1.03
0H 18 116389 1.03
−2.58
0H 14 149643
0H 9 232778 1.03
))
XCLK6