Datasheet

Section 15 Serial Communication Interface (SCI, IrDA)
Rev.7.00 Mar. 18, 2009 page 718 of 1136
REJ09B0109-0700
Table 15.7 Maximum Bit Rate with External Clock Input (Clocked Synchronous Mode)
φ (MHz)
External Input
Clock (MHz)
Maximum Bit
Rate (bit/s)
φ (MHz)
External Input
Clock (MHz)
Maximum Bit
Rate (bit/s)
8 1.3333 1333333.3 20 3.3333 3333333.3
10 1.6667 1666666.7 25 4.1667 4166666.7
12 2.0000 2000000.0 30 5.0000 5000000.0
14 2.3333 2333333.3 33 5.5000 5500000.0
16 2.6667 2666666.7 34
*
1
5.6667 5666666.7
18 3.0000 3000000.0 35
*
2
5.8336 5833625.0
Notes: 1. Supported on the H8S/2378 0.18μm F-ZTAT Group and H8S/2378R 0.18μm F-ZTAT
Group only.
2. Supported on the H8S/2378 only.
Table 15.8 Examples of Bit Rate for Various BRR Settings (Smart Card Interface Mode)
(when n = 0 and S = 372)
Operating Frequency φ (MHz)
10.00 10.7136 13.00 14.2848
Bit Rate
(bit/s) n N
Error
(%)
n N
Error
(%)
n N
Error
(%)
n N
Error
(%)
9600 0 1 30.00 0 1 25.00 0 1 8.99 0 1 0.00
Operating Frequency φ (MHz)
16.00 18.00 20.00 25.00
Bit Rate
(bit/s) n N
Error
(%)
n N
Error
(%)
n N
Error
(%)
n N
Error
(%)
9600 0 1 12.01 0 2 15.99 0 2 6.66 0 3 12.49
Operating Frequency φ (MHz)
30.00 33.00 34.00
*
1
35.00
*
2
Bit Rate
(bit/s) n N
Error
(%)
n N
Error
(%)
n N
Error
(%)
n N
Error
(%)
9600 0 3 5.01 0 4 7.59 0 4 4.79 0 4 1.99
Notes: 1. Supported on the H8S/2378 0.18μm F-ZTAT Group and H8S/2378R 0.18μm F-ZTAT
Group only.
2. Supported on the H8S/2378 only.