H8SLASH3003 datasheet(463/715 Pages) RENESAS

463 / 715 page

Table 13-4 Examples of Bit Rates and BRR Settings in Synchronous Mode

ø (MHz)

110

—

——

—

250

124

249

124

—

249

500

249

124

249

—

124

1 k

124

249

124

—

249

2.5 k

199

249

5 k

199

124

199

10 k

199

249

25 k

159

50 k

100 k

250 k

500 k

1 M

—

2 M

——

2.5 M

—

——

4 M

Note: Settings with an error of 1% or less are recommended.

Legend

Blank: No setting available

—:

Setting possible, but error occurs

Continuous transmit/receive not possible

The BRR setting is calculated as follows:

Asynchronous mode:

N =

× 106 – 1

Synchronous mode:

N =

× 106 – 1

B: Bit rate (bits/s)

N: BRR setting for baud rate generator (0

≤ N ≤ 255)

ø: System clock frequency (MHz)

n: Baud rate generator clock source (n = 0, 1, 2, 3)

(For the clock sources and values of n, see the table below.)

Bit Rate

(bits/s)

× 22n–1 × B

445

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