HD64F3642AH Renesas Electronics America, HD64F3642AH Datasheet - Page 326
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HD64F3642AH
Manufacturer Part Number
HD64F3642AH
Description
IC H8 MCU FLASH 16K 64QFP
Manufacturer
Renesas Electronics America
Series
H8® H8/300Lr
Datasheet
1.HD64F3644HV.pdf
(551 pages)
Specifications of HD64F3642AH
Core Processor
H8/300L
Core Size
8-Bit
Speed
8MHz
Connectivity
SCI
Peripherals
PWM, WDT
Number Of I /o
53
Program Memory Size
16KB (16K x 8)
Program Memory Type
FLASH
Ram Size
1K x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Data Converters
A/D 8x8b
Oscillator Type
Internal
Operating Temperature
-20°C ~ 75°C
Package / Case
64-QFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
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HD64F3642AHV H8/3642A
Manufacturer:
RENESAS
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190
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Section 10 Serial Communication Interface
Bit Rate Register (BRR)
BRR is an 8-bit register that designates the transmit/receive bit rate in accordance with the baud
rate generator operating clock selected by bits CKS1 and CKS0 of the serial mode register (SMR).
BRR can be read or written by the CPU at any time.
BRR is initialized to H'FF upon reset, and in standby, watch, subactive, or subsleep mode.
Table 10.6 shows examples of BRR settings in asynchronous mode. The values shown are for
active (high-speed) mode.
Table 10.6 Examples of BRR Settings for Various Bit Rates (Asynchronous Mode)
Bit Rate
(bits/s)
110
150
300
600
1200
2400
4800
9600
19200
31250
38400
Rev. 6.00 Sep 12, 2006 page 304 of 526
REJ09B0326-0600
Bit
Initial value
Read/Write
n
1
0
0
0
0
0
0
N
70
207
103
51
25
12
0
BRR7
R/W
2
7
1
Error
(%)
+0.03
+0.16
+0.16
+0.16
+0.16
+0.16
0
BRR6
R/W
1
6
n
1
0
0
0
0
0
0
0
0
0
BRR5
R/W
2.4576
N
86
255
127
63
31
15
7
3
1
0
5
1
Error
(%)
+0.31
0
0
0
0
0
0
0
0
0
BRR4
OSC (MHz)
R/W
4
1
n
1
1
0
0
0
0
0
0
BRR3
R/W
3
1
N
141
103
207
103
51
25
12
1
4
Error
(%)
+0.03
+0.16
+0.16
+0.16
+0.16
+0.16
+0.16
0
BRR2
R/W
2
1
n
1
1
0
0
0
0
0
0
BRR1
R/W
1
1
4.194304
N
148
108
217
108
54
26
13
6
BRR0
R/W
Error
(%)
–0.04
+0.21
+0.21
+0.21
–0.70
+1.14
–2.48
–2.48
0
1
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