H8S-2350 RENESAS [Renesas Technology Corp], H8S-2350 Datasheet - Page 660

• Manufacturer Part Number: H8S-2350
• Description: 16-Bit Single-Chip Microcomputer
• Manufacturer: RENESAS [Renesas Technology Corp]

Section 14 Smart Card Interface
14.3.5
Only an internal clock generated by the on-chip baud rate generator can be used as the
transmit/receive clock for the smart card interface. The bit rate is set with BRR and the CKS1 and
CKS0 bits in SMR. The formula for calculating the bit rate is as shown below. Table 14.5 shows
some sample bit rates.
If clock output is selected by setting CKE0 to 1, a clock with a frequency of 372 times the bit rate
is output from the SCK pin.
Where: N = Value set in BRR (0
Table 14.4 Correspondence between n and CKS1, CKS0
Table 14.5 Examples of Bit Rate B (bit/s) for Various BRR Settings (When n = 0)
Note: Bit rates are rounded to the nearest whole number.
Rev. 3.00 Sep 15, 2006 page 626 of 988
REJ09B0330-0300
n
0
1
2
3
N
0
1
2
B = Bit rate (bit/s)
n = See table 14.4
B =
Clock
= Operating frequency (MHz)
1488
CKS1
0
1
10.00
13441
6720
4480
2
2n – 1
10.714
14400
7200
4800
(N + 1)
CKS0
0
1
0
1
N
13.00
17473
8737
5824
255)
10
6
14.285
19200
9600
6400
(MHz)
16.00
21505
10753
7168
18.00
24194
12097
8065
20.00
26882
13441
8961