AT32UC3A3128S Atmel Corporation, AT32UC3A3128S Datasheet - Page 195
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AT32UC3A3128S
Manufacturer Part Number
AT32UC3A3128S
Description
Manufacturer
Atmel Corporation
Datasheets
1.AT32UC3A0128.pdf
(377 pages)
2.AT32UC3A0128.pdf
(33 pages)
3.AT32UC3A0128.pdf
(159 pages)
4.AT32UC3A3128.pdf
(91 pages)
5.AT32UC3A3128.pdf
(1012 pages)
Specifications of AT32UC3A3128S
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
110
Ext Interrupts
110
Usb Transceiver
1
Usb Speed
Hi-Speed
Usb Interface
Device + OTG
Spi
6
Twi (i2c)
2
Uart
4
Lin
4
Ssc
1
Sd / Emmc
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
AES
Sram (kbytes)
128
Self Program Memory
YES
External Bus Interface
1
Dram Memory
sdram
Nand Interface
Yes
Picopower
No
Temp. Range (deg C)
-40 to 85
I/o Supply Class
3.0 to 3.6
Operating Voltage (vcc)
3.0 to 3.6
Fpu
No
Mpu / Mmu
Yes / No
Timers
6
Output Compare Channels
18
Input Capture Channels
12
Pwm Channels
12
32khz Rtc
Yes
Calibrated Rc Oscillator
Yes
- AT32UC3A0128 PDF datasheet
- AT32UC3A0128 PDF datasheet #2
- AT32UC3A0128 PDF datasheet #3
- AT32UC3A3128 PDF datasheet #4
- AT32UC3A3128 PDF datasheet #5
- Current page: 195 of 1012
- Download datasheet (16Mb)
15.6.5.3
32072G–11/2011
Reload user configuration wait state
•User procedure
Figure 15-18. Early Read Wait State: NWE-controlled Write with No Hold Followed by a Read
The user may change any of the configuration parameters by writing the SMC user interface.
When detecting that a new user configuration has been written in the user interface, the SMC
inserts a wait state before starting the next access. The so called “reload user configuration wait
state” is used by the SMC to load the new set of parameters to apply to next accesses.
The reload configuration wait state is not applied in addition to the chip select wait state. If
accesses before and after reprogramming the user interface are made to different devices (dif-
ferent chip selects), then one single chip select wait state is applied.
On the other hand, if accesses before and after writing the user interface are made to the same
device, a reload configuration wait state is inserted, even if the change does not concern the cur-
rent chip select.
To insert a reload configuration wait state, the SMC detects a write access to any MODE register
of the user interface. If the user only modifies timing registers (SETUP, PULSE, CYCLE regis-
ters) in the user interface, he must validate the modification by writing the MODE register, even
if no change was made on the mode parameters.
Internal write controlling signal
external write controlling
signal(NWE)
with one Set-up Cycle.
NBS0, NBS1,
A[AD_MSB:2]
A0, A1
D[15:0]
CLK_SMC
NRD
(WRITEMODE = 1)
Write cycle
No hold
Early Read
Wait State
Read setup=1
(READMODE=0 or READMODE=1)
Read cycle
195
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