Hitachi H8S/2378, H8S/2378R Series Hardware Manual page 695

Table 15.4 Maximum Bit Rate for Each Frequency (Asynchronous Mode)
Maximum Bit
ø (MHz) Rate (bit/s)
2 62500
2.097152 65536
2.4576 76800
3 93750
3.6864 115200
4 125000
4.9152 153600
5 156250
6 187500
6.144 192000
7.3728 230400
8 250000
9.8304 307200
Table 15.5 Maximum Bit Rate with External Clock Input (Asynchronous Mode)
External Input
ø (MHz) Clock (MHz)
2 0.5000
2.097152 0.5243
2.4576 0.6144
3 0.7500
3.6864 0.9216
4 1.0000
4.9152 1.2288
5 1.2500
6 1.5000
6.144 1.5360
7.3728 1.8432
8 2.0000
9.8304 2.4576
n N
0 0
0 0
0 0
0 0
0 0
0 0
0 0
0 0
0 0
0 0
0 0
0 0
0 0
Maximum Bit
Rate (bit/s)
31250
32768
38400
46875
57600
62500
76800
78125
93750
96000
115200
125000
153600
Maximum Bit
ø (MHz) Rate (bit/s)
10 312500
12 375000
12.288 384000
14 437500
14.7456 460800
16 500000
17.2032 537600
18 562500
19.6608 614400
20 625000
25 781250
30 937500
33 1031250
External Input
ø (MHz) Clock (MHz)
10 2.5000
12 3.0000
12.288 3.0720
14 3.5000
14.7456 3.6864
16 4.0000
17.2032 4.3008
18 4.5000
19.6608 4.9152
20 5.0000
25 6.2500
30 7.5000
33 8.2500
Rev. 1.0, 09/01, page 651 of 904
n N
0 0
0 0
0 0
0 0
0 0
0 0
0 0
0 0
0 0
0 0
0 0
0 0
0 0
Maximum Bit
Rate (bit/s)
156250
187500
192000
218750
230400
250000
268800
281250
307200
312500
390625
468750
515625