AT90PWM3B Atmel Corporation, AT90PWM3B Datasheet - Page 225
AT90PWM3B
Manufacturer Part Number
AT90PWM3B
Description
Manufacturer
Atmel Corporation
Specifications of AT90PWM3B
Flash (kbytes)
8 Kbytes
Pin Count
32
Max. Operating Frequency
16 MHz
Cpu
8-bit AVR
# Of Touch Channels
8
Hardware Qtouch Acquisition
No
Max I/o Pins
27
Ext Interrupts
4
Usb Speed
No
Usb Interface
No
Spi
1
Uart
1
Graphic Lcd
No
Video Decoder
No
Camera Interface
No
Adc Channels
11
Adc Resolution (bits)
10
Adc Speed (ksps)
125
Analog Comparators
3
Resistive Touch Screen
No
Dac Channels
1
Dac Resolution (bits)
10
Temp. Sensor
No
Crypto Engine
No
Sram (kbytes)
0.5
Eeprom (bytes)
512
Self Program Memory
YES
Dram Memory
No
Nand Interface
No
Picopower
No
Temp. Range (deg C)
-40 to 105
I/o Supply Class
2.7 to 5.5
Operating Voltage (vcc)
2.7 to 5.5
Fpu
No
Mpu / Mmu
no / no
Timers
5
Output Compare Channels
16
Input Capture Channels
1
Pwm Channels
12
32khz Rtc
No
Calibrated Rc Oscillator
Yes
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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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