AT32UC3C0512CAU Atmel Corporation, AT32UC3C0512CAU Datasheet - Page 321
AT32UC3C0512CAU
Manufacturer Part Number
AT32UC3C0512CAU
Description
Manufacturer
Atmel Corporation
Datasheets
1.AT32UC3A0128.pdf
(377 pages)
2.AT32UC3A0128.pdf
(159 pages)
3.AT32UC3A0128AU.pdf
(2 pages)
4.AT32UC3C0128C.pdf
(1313 pages)
5.AT32UC3C0128C.pdf
(108 pages)
Specifications of AT32UC3C0512CAU
Flash (kbytes)
512 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
123
Ext Interrupts
144
Usb Transceiver
1
Quadrature Decoder Channels
2
Usb Speed
Full Speed
Usb Interface
Device + OTG
Spi
7
Twi (i2c)
3
Uart
5
Can
2
Lin
5
Ssc
1
Ethernet
1
Graphic Lcd
No
Video Decoder
No
Camera Interface
No
Adc Channels
16
Adc Resolution (bits)
12
Adc Speed (ksps)
2000
Analog Comparators
4
Resistive Touch Screen
No
Dac Channels
4
Dac Resolution (bits)
12
Temp. Sensor
No
Crypto Engine
No
Sram (kbytes)
68
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 to 3.6 or 4.5 to 5.5
Operating Voltage (vcc)
3.0 to 3.6 or 4.5 to 5.5
Fpu
Yes
Mpu / Mmu
Yes / No
Timers
6
Output Compare Channels
22
Input Capture Channels
12
Pwm Channels
20
32khz Rtc
Yes
Calibrated Rc Oscillator
Yes
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- AT32UC3A0128 PDF datasheet
- AT32UC3A0128 PDF datasheet #2
- AT32UC3A0128AU PDF datasheet #3
- AT32UC3C0128C PDF datasheet #4
- AT32UC3C0128C PDF datasheet #5
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18.6.5
18.6.5.1
18.6.5.2
32117C–AVR-08/11
Automatic Wait States
Chip select wait states
Early read wait state
_MSB:2]
, NBS1,
, A1
Under certain circumstances, the SMC automatically inserts idle cycles between accesses to
avoid bus contention or operation conflict.
The SMC always inserts an idle cycle between two transfers on separate chip selects. This idle
cycle ensures that there is no bus contention between the deactivation of one device and the
activation of the next one.
During chip select wait state, all control lines are turned inactive: NBS0 to NBS3, NWR0 to
NWR3, NCS[0..5], NRD lines are all set to high level.
Figure 18-15 on page 321
(NCS0) and Chip Select 2 (NCS2).
Figure 18-15. Chip Select Wait State Between a Read Access on NCS0 and a Write Access on
CLK_SMC
In some cases, the SMC inserts a wait state cycle between a write access and a read access to
allow time for the write cycle to end before the subsequent read cycle begins. This wait state is
not generated in addition to a chip select wait state. The early read cycle thus only occurs
between a write and read access to the same memory device (same chip select).
NCS0
NCS2
D[15:0]
NWE
NRD
NCS2
NRDCYCLE
illustrates a chip select wait state between access on Chip Select 0
Read to Write
Wait State
Chip Select
Wait State
NWECYCLE
AT32UC3C
321
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