AT32UC3A364 Atmel Corporation, AT32UC3A364 Datasheet - Page 185
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AT32UC3A364
Manufacturer Part Number
AT32UC3A364
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 AT32UC3A364
Flash (kbytes)
64 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
No
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
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
AT32UC3A364-ALU
Manufacturer:
ATMEL
Quantity:
230
Company:
Part Number:
AT32UC3A364-ALUR
Manufacturer:
AVAGO
Quantity:
11 439
Part Number:
AT32UC3A364S-ALUT
Manufacturer:
MICROCHIP/微芯
Quantity:
20 000
- AT32UC3A0128 PDF datasheet
- AT32UC3A0128 PDF datasheet #2
- AT32UC3A0128 PDF datasheet #3
- AT32UC3A3128 PDF datasheet #4
- AT32UC3A3128 PDF datasheet #5
- Current page: 185 of 1012
- Download datasheet (16Mb)
15.6.4.2
32072G–11/2011
Read mode
•Read is controlled by NRD (MODE.READMODE = 1)
Figure 15-8. No Setup, No Hold on NRD, and NCS Read Signals
Programming null pulse is not permitted. Pulse must be at least written to one. A null value leads
to unpredictable behavior.
As NCS and NRD waveforms are defined independently of one other, the SMC needs to know
when the read data is available on the data bus. The SMC does not compare NCS and NRD tim-
i n g s t o k n o w w h i c h s ig n a l r i s e s f i r s t . T h e R e a d M o d e b it i n t h e M O D E r e g i s t e r
(MODE.READMODE) of the corresponding chip select indicates which signal of NRD and NCS
controls the read operation.
Figure 15-9 on page 186
RAM. The read data is available t
ing edge of NRD. In this case, the MODE.READMODE bit must be written to one (read is
controlled by NRD), to indicate that data is available with the rising edge of NRD. The SMC sam-
ples the read data internally on the rising edge of CLK_SMC that generates the rising edge of
NRD, whatever the programmed waveform of NCS may be.
• Null Pulse
NBS0, NBS1,
A[AD_MSB:2]
A0, A1
CLK_SMC
D[15:0]
NRD
NCS
NRDSETUP
NCSRDPULSE
NRDCYCLE
shows the waveforms of a read operation of a typical asynchronous
PACC
after the falling edge of NRD, and turns to ‘Z’ after the ris-
NRDPULSE
NCSRDPULSE
NRDCYCLE
NRDCYCLE
NRDPULSE
NCSRDPULSE
185
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