AT90USB1286-AU Atmel, AT90USB1286-AU Datasheet - Page 201
AT90USB1286-AU
Manufacturer Part Number
AT90USB1286-AU
Description
MCU AVR 128K FLASH 16MHZ 64TQFP
Manufacturer
Atmel
Series
AVR® 90USBr
Specifications of AT90USB1286-AU
Core Processor
AVR
Core Size
8-Bit
Speed
16MHz
Connectivity
EBI/EMI, I²C, SPI, UART/USART, USB, USB OTG
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
48
Program Memory Size
128KB (128K x 8)
Program Memory Type
FLASH
Eeprom Size
4K x 8
Ram Size
8K x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
64-TQFP, 64-VQFP
Controller Family/series
AVR USB
No. Of I/o's
48
Eeprom Memory Size
4KB
Ram Memory Size
8KB
Cpu Speed
20MHz
Rohs Compliant
Yes
Processor Series
AT90USBx
Core
AVR8
Data Bus Width
8 bit
Data Ram Size
8 KB
Interface Type
2-Wire, SPI, USART
Maximum Clock Frequency
20 MHz
Number Of Programmable I/os
48
Number Of Timers
4
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
3rd Party Development Tools
EWAVR, EWAVR-BL
Development Tools By Supplier
ATAVRDRAGON, ATSTK500, ATSTK600, ATSTK525, ATAVRISP2, ATAVRONEKIT, AT90USBKEY, ATEVK525
Minimum Operating Temperature
- 40 C
On-chip Adc
10 bit, 8 Channel
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
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Part Number
Manufacturer
Quantity
Price
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Manufacturer:
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Quantity:
650
Part Number:
AT90USB1286-AU
Manufacturer:
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Quantity:
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Part Number:
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18.9.4
7593K–AVR–11/09
USART Control and Status Register n C – UCSRnC
zero) will not become effective until ongoing and pending transmissions are completed, i.e.,
when the Transmit Shift Register and Transmit Buffer Register do not contain data to be trans-
mitted. When disabled, the Transmitter will no longer override the TxDn port.
• Bit 2 – UCSZn2: Character Size n
The UCSZn2 bits combined with the UCSZn1:0 bit in UCSRnC sets the number of data bits
(Character SiZe) in a frame the Receiver and Transmitter use.
• Bit 1 – RXB8n: Receive Data Bit 8 n
RXB8n is the ninth data bit of the received character when operating with serial frames with nine
data bits. Must be read before reading the low bits from UDRn.
• Bit 0 – TXB8n: Transmit Data Bit 8 n
TXB8n is the ninth data bit in the character to be transmitted when operating with serial frames
with nine data bits. Must be written before writing the low bits to UDRn.
• Bits 7:6 – UMSELn1:0 USART Mode Select
These bits select the mode of operation of the USARTn as shown in
Table 18-4.
Note:
• Bits 5:4 – UPMn1:0: Parity Mode
These bits enable and set type of parity generation and check. If enabled, the Transmitter will
automatically generate and send the parity of the transmitted data bits within each frame. The
Receiver will generate a parity value for the incoming data and compare it to the UPMn setting.
If a mismatch is detected, the UPEn Flag in UCSRnA will be set.
Table 18-5.
Bit
Read/Write
Initial Value
UMSELn1
UPMn1
1. See
0
0
1
1
0
0
1
1
operation
7
UMSELn1
R/W
0
UMSELn Bits Settings
UPMn Bits Settings
“USART in SPI Mode” on page 206
6
UMSELn0
R/W
0
UMSELn0
UPMn0
0
1
0
1
0
1
0
1
UPMn1
R/W
5
0
Parity Mode
Disabled
Reserved
Enabled, Even Parity
Enabled, Odd Parity
UPMn0
R/W
4
0
Mode
Asynchronous USART
Synchronous USART
(Reserved)
Master SPI (MSPIM)
3
USBSn
R/W
0
for full description of the Master SPI Mode (MSPIM)
2
UCSZn1
R/W
1
(1)
1
UCSZn0
R/W
1
AT90USB64/128
Table
0
UCPOLn
R/W
0
18-4..
UCSRnC
201
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