10. Serial Communication Interface
Rev.3.00 Jul. 19, 2007 page 276 of 532
REJ09B0397-0300
OSC
(MHz)
9.8304
10
Bit Rate
(bits/s)
n
N
Error
(
%
)
n
N
Error
(
%
)
110
2 86
+0.31
2 88
−
0.25
150
1 255
0
2 64
+0.16
300
1 127
0
1 129
+0.16
600
0 255
0
1 64
+0.16
1200
0 127
0
0 129
+0.16
2400
0 63
0
0 64
+0.16
4800
0 31
0
0 32
−
1.36
9600
0 15
0
0 15
+1.73
19200 0 7 0
0 7 +1.73
31250 0
4
−
1.70
0 4 0
38400 0 3 0
0 3 +1.73
Notes: 1. Settings should be made so that error is within 1
%
.
2. BRR setting values are derived by the following equation.
N =
×
10
6
– 1
OSC
64
×
2
2n
×
B
B:
Bit rate (bits/s)
N:
BRR baud rate generator setting (0
≤
N
≤
255)
OSC: Value of
φ
OSC
(MHz)
n:
Baud rate generator input clock number (n = 0 to 3)
(The relation between n and the clock is shown in table 10.7.)
3. The error values in table 10.6 were derived by performing the following calculation and
rounding off to two decimal places.
Error (
%
) =
×
100
B – R
R
B: Bit rate found from n, N, and OSC
R: Bit rate listed in left column of table 10.6
Содержание F-ZTAT H8 Series
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