E62655RUSB Renesas Electronics America, E62655RUSB Datasheet - Page 631

• Manufacturer Part Number: E62655RUSB
• Description: EMULATOR BASE H8S/2655R W/USB
• Manufacturer: Renesas Electronics America
• Type: Microcontrollerr

Specifications of E62655RUSB

• Contents: E6000 Emulator Unit and 4 Logic Probes
• For Use With/related Products: H8S/2655R
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

14.2.8
BRR is an 8-bit register that sets the serial transfer bit rate in accordance with the baud rate
generator operating clock selected by bits CKS1 and CKS0 in SMR.
BRR can be read or written to by the CPU at all times.
BRR is initialized to H'FF by a reset, and in standby mode or module stop mode.
As baud rate generator control is performed independently for each channel, different values can
be set for each channel.
Table 14.3 shows sample BRR settings in asynchronous mode, and table 14.4 shows sample BRR
settings in clocked synchronous mode.
Table 14.3 BRR Settings for Various Bit Rates (Asynchronous Mode)
Bit Rate
(bit/s)
110
150
300
600
1200
2400
4800
9600
19200
31250
38400
Bit
Initial value
R/W
Bit Rate Register (BRR)
:
:
:
n
1
1
0
0
0
0
0
0
0
0
0
R/W
7
1
N
141
103
207
103
51
25
12
6
2
1
1
= 2 MHz
Error
(%)
0.03
0.16
0.16
0.16
0.16
0.16
0.16
–6.99 0
8.51
0.00
–18.62 0
R/W
6
1
n
1
1
0
0
0
0
0
0
0
= 2.097152 MHz
R/W
5
1
N
148
108
217
108
54
26
13
6
2
1
1
Section 14 Serial Communication Interface (SCI)
Error
(%)
–0.04 1
0.21
0.21
0.21
–0.70 0
1.14
–2.48 0
–2.48 0
13.78 0
4.86
–14.67 0
R/W
4
1
Rev. 5.00 Sep 14, 2006 page 601 of 1060
n
1
0
0
0
0
R/W
3
1
= 2.4576 MHz
N
174
127
255
127
63
31
15
7
3
1
1
R/W
Error
(%)
–0.26 1
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
22.88 0
0.00
2
1
n
1
1
0
0
0
0
0
0
0
REJ09B0331-0500
R/W
1
1
N
212
155
77
155
77
38
19
9
4
2
1
= 3 MHz
R/W
0
1
Error
(%)
0.03
0.16
0.16
0.16
0.16
0.16
–2.34
–2.34
–2.34
0.00
22.07