AT90PWM3B-16SUR Atmel, AT90PWM3B-16SUR Datasheet - Page 225
AT90PWM3B-16SUR
Manufacturer Part Number
AT90PWM3B-16SUR
Description
MCU AVR 8K FLASH 16MHA 32SOIC
Manufacturer
Atmel
Series
AVR® 90PWM Lightingr
Datasheet
1.AT90PWM3B-16SU.pdf
(361 pages)
Specifications of AT90PWM3B-16SUR
Core Processor
AVR
Core Size
8-Bit
Speed
16MHz
Connectivity
SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
27
Program Memory Size
8KB (8K x 8)
Program Memory Type
FLASH
Eeprom Size
512 x 8
Ram Size
512 x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Data Converters
A/D 11x10b; D/A 1x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 105°C
Package / Case
32-SOIC (7.5mm Width)
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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19.6.6
4317J–AVR–08/10
Manchester receiver Baud Rate Registers – MUBRRL and MUBRRH
• Bit 15:0 – MUBRR15:0: Manchester Receiver Baud Rate Register
This is a 16-bit register which contains the maximum value for the Machester receiver counter.
The MUBRRH contains the eight most significant bits, and the MUBRRL contains the eight least
significant bits. Ongoing transmissions by the Receiver will be corrupted if the baud rate is
changed.
Table 19-5.
Bit
Read/Write
Initial Value
Baud
Rate
(bps)
1200
2400
4800
9600
Examples of MUBRR Settings for Commonly Frequencies
f
clk
MHz
833
417
208
104
R/W
R/W
15
1
7
0
0
io
=
R/W
R/W
MUBRR[H:L]=F
14
6
0
0
f
1.8432
clk
1536
MHz
768
384
192
io
=
R/W
R/W
13
5
0
0
f
2.0000
clk
1667
MHz
833
417
208
CLKIO
io
R/W
R/W
=
12
MUBRR[15:8]
4
0
0
MUBRR[7:0]
/ (baud rate frequency)
f
4.0000
clk
3333
1667
MHz
833
417
R/W
R/W
11
3
0
0
io
=
AT90PWM2/3/2B/3B
R/W
R/W
10
2
0
0
f
8.0000
clk
6667
3333
1667
MHz
833
io
=
R/W
R/W
9
1
0
0
11.0592
f
clk
9216
4608
2304
1152
MHz
io
R/W
R/W
=
8
0
0
0
f
16.000
MUBRRH
13333
MUBRRL
clk
6667
3333
1667
MHz
io
=
225
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