AT32UC3A1128-AUT Atmel, AT32UC3A1128-AUT Datasheet - Page 440
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AT32UC3A1128-AUT
Manufacturer Part Number
AT32UC3A1128-AUT
Description
IC MCU AVR32 128KB FLASH 100TQFP
Manufacturer
Atmel
Series
AVR®32 UC3r
Specifications of AT32UC3A1128-AUT
Core Processor
AVR
Core Size
32-Bit
Speed
66MHz
Connectivity
Ethernet, I²C, SPI, SSC, UART/USART, USB OTG
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
69
Program Memory Size
128KB (128K x 8)
Program Memory Type
FLASH
Ram Size
32K x 8
Voltage - Supply (vcc/vdd)
1.65 V ~ 1.95 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
100-TQFP, 100-VQFP
Controller Family/series
AT32UC3A
No. Of I/o's
69
Ram Memory Size
32KB
Cpu Speed
66MHz
No. Of Timers
1
Rohs Compliant
Yes
Processor Series
AT32UC3x
Core
AVR32
Data Bus Width
32 bit
Data Ram Size
32 KB
Interface Type
2-Wire, RS-485, SPI, USART
Maximum Clock Frequency
66 MHz
Number Of Programmable I/os
69
Number Of Timers
3
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
3rd Party Development Tools
EWAVR32, EWAVR32-BL, KSK-EVK1100-PL
Development Tools By Supplier
ATAVRDRAGON, ATSTK500, ATSTK600, ATAVRISP2, ATAVRONEKIT, ATEXTWIFI, ATEVK1100, ATEVK1105
Minimum Operating Temperature
- 40 C
Package
100TQFP
Device Core
AVR32
Family Name
AT32
Maximum Speed
66 MHz
Operating Supply Voltage
1.8|3.3 V
For Use With
ATAVRONEKIT - KIT AVR/AVR32 DEBUGGER/PROGRMMR770-1008 - ISP 4PORT ATMEL AVR32 MCU SPIATSTK600-TQFP100 - STK600 SOCKET/ADAPTER 100-TQFPATEVK1100 - KIT DEV/EVAL FOR AVR32 AT32UC3A
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Lead Free Status / Rohs Status
Details
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
- Current page: 440 of 826
- Download datasheet (20Mb)
29.5.1.2
Table 29-1.
32058J–AVR32–04/11
Bit
31:2
31
30
29
28
27
26
25
24
23
22
21
1
0
Address of beginning of buffer
Wrap - marks last descriptor in receive buffer descriptor list.
Ownership - needs to be zero for the MACB to write data to the receive buffer. The MACB sets this to one once it has
successfully written a frame to memory.
Software has to clear this bit before the buffer can be used again.
Global all ones broadcast address detected
Multicast hash match
Unicast hash match
External address match
Reserved for future use
Specific address register 1 match
Specific address register 2 match
Specific address register 3 match
Specific address register 4 match
Type ID match
VLAN tag detected (i.e., type id of 0x8100)
Receive Buffers
Receive Buffer Descriptor Entry
Thus the bus latency must be less than the time it takes to load the FIFO and transmit or receive
three words (12 bytes) of data.
At 100 Mbit/s, it takes 960 ns to transmit or receive 12 bytes of data. In addition, six master clock
cycles should be allowed for data to be loaded from the bus and to propagate through the
FIFOs. For a 60 MHz master clock this takes 100 ns, making the bus latency requirement 860
ns.
Received frames, optionally including CRC/FCS, are written to receive buffers stored in mem-
ory. Each receive buffer is 128 bytes long. The start location for each receive buffer is stored in
memory in a list of receive buffer descriptors at a location pointed to by the receive buffer queue
pointer register. The receive buffer start location is a word address. For the first buffer of a
frame, the start location can be offset by up to three bytes depending on the value written to bits
14 and 15 of the network configuration register. If the start location of the buffer is offset the
available length of the first buffer of a frame is reduced by the corresponding number of bytes.
Each list entry consists of two words, the first being the address of the receive buffer and the
second being the receive status. If the length of a receive frame exceeds the buffer length, the
status word for the used buffer is written with zeroes except for the “start of frame” bit and the
offset bits, if appropriate. Bit zero of the address field is written to one to show the buffer has
been used. The receive buffer manager then reads the location of the next receive buffer and
fills that with receive frame data. The final buffer descriptor status word contains the complete
frame status. Refer to
Table 29-1
Word 0
Word 1
for details of the receive buffer descriptor list.
Function
AT32UC3A
440
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