AT90PWM3B-16SU Atmel, AT90PWM3B-16SU Datasheet - Page 225

• Manufacturer Part Number: AT90PWM3B-16SU
• Description: IC MCU AVR RISC 8K FLASH 32-SOIC
• Manufacturer: Atmel
• Series: AVR® 90PWM Lightingr

Specifications of AT90PWM3B-16SU

• 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)
• Processor Series: AT90PWMx
• Core: AVR8
• Data Bus Width: 8 bit
• Data Ram Size: 512 B
• Interface Type: SPI/USART
• Maximum Clock Frequency: 16 MHz
• Number Of Programmable I/os: 27
• Number Of Timers: 2
• Operating Supply Voltage: 2.7 V to 5.5 V
• Maximum Operating Temperature: + 105 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: EWAVR, EWAVR-BL
• Development Tools By Supplier: ATAVRDRAGON, ATSTK500, ATSTK600, ATAVRISP2, ATAVRONEKIT, ATAVRFBKIT, ATAVRISP2
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 11-ch x 10-bit
• On-chip Dac: 1-chx10-bit
• Controller Family/series: AVR PWM
• Eeprom Memory Size: 512Byte
• Ram Memory Size: 512Byte
• Cpu Speed: 16MHz
• Rohs Compliant: Yes
• For Use With: ATSTK600-SOIC - STK600 SOCKET/ADAPTER FOR SOIC770-1007 - ISP 4PORT ATMEL AVR MCU SPI/JTAGATAVRMC200 - KIT EVAL FOR AT90PWM3 ASYNCATAVRFBKIT - KIT DEMO BALLAST FOR AT90PWM2ATAVRISP2 - PROGRAMMER AVR IN SYSTEMATSTK520 - ADAPTER KIT FOR 90PWM
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

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