Datasheet

Table Of Contents
Section 13 Serial Communication Interface
Page 422 of 846 REJ09B0140-0900 Rev. 9.00
Sep 16, 2010
H8S/2215 Group
Table 13.8 BRR Settings for Various Bit Rates
(Smart Card Interface Mode, when n = 0 and S = 372)
Operating Frequency φ (MHz)
5.00 7.00 7.1424 10.00 10.7136 13.00
Bit Rate
(bps)
N
Error
(%)
N
Error
(%)
N
Error
(%)
N
Error
(%)
N
Error
(%)
N Error (%)
6720 0 0.01 1 30.00 1 28.57 1 0.01 1 7.14 2 13.33
9600 0 30.00 0 1.99 0 0.00 1 30.00 1 25.00 1 8.99
Operating Frequency φ (MHz)
14.2848 16.00 18.00 20.00 24.00
Bit Rate
(bps)
N
Error
(%)
N
Error
(%)
N
Error
(%)
N
Error
(%)
N
Error
(%)
6720 2 4.76 2 6.67 3 0.01 3 0.01 4 3.99
9600 1 0.00 1 12.01 2 15.99 2 6.66 2 12.01
Table 13.9 Maximum Bit Rate at Various Frequencies (Smart Card Interface Mode)
Maximum Bit Rate (bps)
φ (MHz) S = 32 S = 64 S = 256 S = 372 n N
5.00 78125 39063 9766 6720 0 0
6.00 93750 46875 11719 8065
7.00 109375 54688 13672 9409 0 0
7.1424 111600 55800 13950 9600 0 0
10.00 156250 78125 19531 13441 0 0
10.7136 167400 83700 20925 14400 0 0
13.00 203125 101563 25391 17473 0 0
14.2848 223200 111600 27900 19200 0 0
16.00 250000 125000 31250 21505 0 0
18.00 281250 140625 35156 24194 0 0
20.00 312500 156250 39063 26882 0 0
24.00 375000 187500 46875 32258 0 0
Note: In this LSI, operating frequency φ must be 13 MHz or greater.