AT32UC3B064-Z2UR Atmel, AT32UC3B064-Z2UR Datasheet - Page 214
![MCU AVR32 64K FLASH 64-QFN](/photos/12/13/121326/313-64-qfn_sml.jpg)
AT32UC3B064-Z2UR
Manufacturer Part Number
AT32UC3B064-Z2UR
Description
MCU AVR32 64K FLASH 64-QFN
Manufacturer
Atmel
Series
AVR®32 UC3r
Datasheet
1.AT32UC3B164-AUR.pdf
(680 pages)
Specifications of AT32UC3B064-Z2UR
Package / Case
64-QFN
Voltage - Supply (vcc/vdd)
1.65 V ~ 1.95 V
Operating Temperature
-40°C ~ 85°C
Speed
60MHz
Number Of I /o
44
Core Processor
AVR
Program Memory Type
FLASH
Ram Size
16K x 8
Program Memory Size
64KB (64K x 8)
Data Converters
A/D 8x10b
Oscillator Type
Internal
Peripherals
Brown-out Detect/Reset, DMA, POR, PWM, WDT
Connectivity
I²C, IrDA, SPI, SSC, UART/USART, USB
Core Size
32-Bit
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
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18.8.5
Name:
Access Type:
Offset:
Reset Value:
• SPIENS: SPI Enable Status
• TXEMPTY: Transmission Registers Empty
• NSSR: NSS Rising
• OVRES: Overrun Error Status
• MODF: Mode Fault Error
• TDRE: Transmit Data Register Empty
• RDRF: Receive Data Register Full
32059J–12/2010
31
23
15
–
–
–
7
–
0: SPI is disabled.
1: SPI is enabled.
0: As soon as data is written in TDR.
1: TDR and internal shifter are empty. If a transfer delay has been defined, TXEMPTY is set after the completion of such delay.
0: No rising edge detected on NSS pin since last read.
1: A rising edge occurred on NSS pin since last read.
0: No overrun has been detected since the last read of SR.
1: An overrun has occurred since the last read of SR.
An overrun occurs when RDR is loaded at least twice from the serializer since the last read of the RDR.
0: No Mode Fault has been detected since the last read of SR.
1: A Mode Fault occurred since the last read of the SR.
0: Data has been written to TDR and not yet transferred to the serializer.
1: The last data written in the Transmit Data Register has been transferred to the serializer.
TDRE equals zero when the SPI is disabled or at reset. The SPI enable command sets this bit to one.
0: No data has been received since the last read of RDR
1: Data has been received and the received data has been transferred from the serializer to RDR since the last read of RDR.
Status Register
30
22
14
SR
Read-only
0x10
0x00000000
–
–
–
6
–
29
21
13
–
–
–
5
–
28
20
12
–
–
–
4
–
OVRES
27
19
11
–
–
–
3
MODF
26
18
10
–
–
2
-
TXEMPTY
TDRE
25
17
–
–
9
1
AT32UC3B
SPIENS
NSSR
RDRF
24
16
–
8
0
214
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