AT32UC3A0128AU Atmel Corporation, AT32UC3A0128AU Datasheet - Page 382
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AT32UC3A0128AU
Manufacturer Part Number
AT32UC3A0128AU
Description
Manufacturer
Atmel Corporation
Datasheets
1.AT32UC3A0128.pdf
(98 pages)
2.AT32UC3A0128.pdf
(826 pages)
3.AT32UC3A0128.pdf
(377 pages)
4.AT32UC3A0128.pdf
(33 pages)
5.AT32UC3A0128.pdf
(159 pages)
6.AT32UC3A0128AU.pdf
(2 pages)
Specifications of AT32UC3A0128AU
Flash (kbytes)
128 Kbytes
Pin Count
144
Max. Operating Frequency
66 MHz
Cpu
32-bit AVR
# Of Touch Channels
32
Hardware Qtouch Acquisition
No
Max I/o Pins
109
Ext Interrupts
109
Usb Transceiver
1
Usb Speed
Full Speed
Usb Interface
Device + OTG
Spi
6
Twi (i2c)
1
Uart
4
Ssc
1
Ethernet
1
Graphic Lcd
No
Video Decoder
No
Camera Interface
No
Adc Channels
8
Adc Resolution (bits)
10
Adc Speed (ksps)
384
Resistive Touch Screen
No
Dac Channels
2
Dac Resolution (bits)
16
Temp. Sensor
No
Crypto Engine
No
Sram (kbytes)
32
Self Program Memory
YES
External Bus Interface
1
Dram Memory
sdram
Nand Interface
No
Picopower
No
Temp. Range (deg C)
-40 to 85
I/o Supply Class
3.0-3.6 or (1.65-1.95+3.0-3.6)
Operating Voltage (vcc)
3.0-3.6 or (1.65-1.95+3.0-3.6)
Fpu
No
Mpu / Mmu
Yes / No
Timers
10
Output Compare Channels
16
Input Capture Channels
6
Pwm Channels
13
32khz Rtc
Yes
Calibrated Rc Oscillator
Yes
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
AT32UC3A0128AU-U
Manufacturer:
ATMEL
Quantity:
4
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32058K AVR32-01/12
Table 27-3.
27.6.4.7
27.6.5
Coded Value
setup [5:0]
pulse [6:0]
cycle [8:0]
Automatic Wait States
Usage Restriction
Coding and Range of Timing Parameters
Number of Bits
The SETUP register groups the definition of all setup parameters:
• NRD_SETUP, NCS_RD_SETUP, NWE_SETUP, NCS_WR_SETUP
The PULSE register groups the definition of all pulse parameters:
• NRD_PULSE, ncs_rd_pULSE, nwe_pULSE, ncs_wr_pULSE
The CYCLE register groups the definition of all cycle parameters:
• NRD_CYCLE, NWE_CYCLEe
Table 27-3
The SMC does not check the validity of the user-programmed parameters. If the sum of
SETUP and PULSE parameters is larger than the corresponding CYCLE parameter, this
leads to unpredictable behavior of the SMC.
For read operations:
Null but positive setup and hold of address and NRD and/or NCS can not be guaranteed at the
memory interface because of the propagation delay of theses signals through external logic and
pads. If positive setup and hold values must be verified, then it is strictly recommended to pro-
gram non-null values so as to cover possible skews between address, NCS and NRD signals.
For write operations:
If a null hold value is programmed on NWE, the SMC can guarantee a positive hold of address,
byte select lines, and NCS signal after the rising edge of NWE. This is true for WRITE_MODE =
1 only. See
For read and write operations: a null value for pulse parameters is forbidden and may lead to
unpredictable behavior.
In read and write cycles, the setup and hold time parameters are defined in reference to the
address bus. For external devices that require setup and hold time between NCS and NRD sig-
nals (read), or between NCS and NWE signals (write), these setup and hold times must be
converted into setup and hold times in reference to the address bus.
Under certain circumstances, the SMC automatically inserts idle cycles between accesses to
avoid bus contention or operation conflict.
6
7
9
shows how the timing parameters are coded and their permitted range.
”Early Read Wait State” on page
256 x cycle[8:7] + cycle[6:0]
128 x setup[5] + setup[4:0]
256 x pulse[6] + pulse[5:0]
Effective Value
385.
Coded Value
0 ≤ ≤ 127
0 ≤ ≤ 31
0 ≤ ≤ 63
Permitted Range
AT32UC3A
256 ≤ ≤ 256+127
512 ≤ ≤ 512+127
768 ≤ ≤ 768+127
Effective Value
128 ≤ ≤ 128+31
256 ≤ ≤ 256+63
382
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