hd64338023s Renesas Electronics Corporation., hd64338023s Datasheet - Page 394

• Manufacturer Part Number: hd64338023s
• Description: Renesas 8-bit Single-chip Microcomputer Super Low Power Series
• Manufacturer: Renesas Electronics Corporation.

Section 10 Serial Communication Interface
Table 10.6 Examples of BRR Settings for Various Bit Rates (Synchronous Mode) (2)
Bit Rate
(bit/s)
200
250
300
500
1K
2.5K
5K
10K
25K
50K
100K
250K
500K
1M
Blank: Cannot be set.
— :
Notes: The value set in BRR is given by the following equation:
Rev. 7.00 Mar 10, 2005 page 352 of 652
REJ09B0042-0700
A setting can be made, but an error will result.
where
N =
n
—
—
—
—
—
—
0
0
0
0
—
0
—
—
(4 • 2
B: Bit rate (bit/s)
N: Baud rate generator BRR setting (0 ≤ N ≤ 255)
φ: System clock frequency
n: Baud rate generator input clock number (n = 0, 2, or 3)
φ
(The relation between n and the clock is shown in table 10.7.)
2n
N
—
—
—
—
—
—
249
124
49
24
—
4
—
—
• B)
5 MHz
– 1
Error
—
—
—
—
—
—
0
0
0
0
—
0
—
—
n
—
3
—
2
2
2
2
0
0
0
0
0
0
0
N
—
124
—
249
124
49
24
199
79
39
19
7
3
1
8 MHz
φ φ φ φ
Error
—
0
—
0
0
0
0
0
0
0
0
0
0
0
n
0
2
0
0
0
0
0
0
0
0
0
0
0
—
N
12499
624
8332
4999
2499
999
499
249
99
49
24
9
4
—
10 MHz
Error
0
0
0
0
0
0
0
0
0
0
0
0
0
—