M38B53M4-059FP datasheet(161/355 Pages) MITSUBISHI

161 / 355 page

38B5 Group User’s Manual

APPLICATION

2-73

2.3 Serial I/O

Transfer bit rate

f(XIN) = 3.6864 MHz

f(XIN) = 4 MHz

(Note 1)

BRG count

BRG setting

Actual rate

BRG count

BRG setting

Actual rate

source (Note 2)

value

source (Note 2)

value

600

f(XIN)/4

95(5F16)

600.00

f(XIN)/4

103(6716)

600.96

1200

f(XIN)/4

47(2F16)

1200.00

f(XIN)/4

51(3316)

1201.92

2400

f(XIN)/4

23(1716)

2400.00

f(XIN)/4

25(1916)

2403.85

4800

f(XIN)/4

11(0B16)

4800.00

f(XIN)/4

12(0C16)

4807.69

9600

f(XIN)/4

5(0516)

9600.00

f(XIN)

25(1916)

9615.38

19200

f(XIN)/4

2(0216)

19200.00

f(XIN)

12(0C16)

19230.77

38400

f(XIN)

5(0516)

38400.00

f(XIN)

5(0516)

41666.67

76800

f(XIN)

2(0216)

76800.00

f(XIN)

2(0216)

83333.33

31250

—

f(XIN)

7(0716)

31250.00

62500

—

f(XIN)

3(0316)

62500.00

Notes 1: Equation of transfer bit rate:

Vm: When bit 0 of the serial I/O2 control register (address 001D16) is set to “0”, a value of m

is 1.

When bit 0 of the serial I/O2 control register is set to “1”, a value of m is 4.

2: Select the BRG count source with bit 0 of the serial I/O2 control register (address 001D16).

Table 2.3.1 shows setting examples of the baud rate generator (BRG) values and transfer bit rate

values.

Table 2.3.1 Setting examples of baud rate generator values and transfer bit rate values

Transfer bit rate (bps) =

(BRG setting value + 1) ! 16 ! mV

f(XIN)

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