Datasheet

Section 15 Serial Communication Interface (SCI, IrDA)
Page 888 of 1408 R01UH0309EJ0500 Rev. 5.00
Sep 24, 2012
H8S/2456, H8S/2456R, H8S/2454 Group
Table 15.5 Maximum Bit Rate with External Clock Input (Asynchronous Mode)
φ (MHz) External Input Clock (MHz) Maximum Bit Rate (bit/s)
8 2.0000 125000
9.8304 2.4576 153600
10 2.5000 156250
12 3.0000 187500
12.288 3.0720 192000
14 3.5000 218750
14.7456 3.6864 230400
16 4.0000 250000
17.2032 4.3008 268800
18 4.5000 281250
19.6608 4.9152 307200
20 5.0000 312500
25 6.2500 390625
30 7.5000 468750
33 8.2500 515625
Note: For the SCI_2, values in the table are the examples with ABCS = 0 in SEMR_2. When
ABCS = 1, the bit rates should be twice the values given above.