AT32UC3A3256S Atmel Corporation, AT32UC3A3256S Datasheet - Page 168
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AT32UC3A3256S
Manufacturer Part Number
AT32UC3A3256S
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 AT32UC3A3256S
Flash (kbytes)
256 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
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
AT32UC3A3256S-ALUT
Manufacturer:
MOLEX
Quantity:
20 000
Part Number:
AT32UC3A3256S-U
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
- AT32UC3A0128 PDF datasheet
- AT32UC3A0128 PDF datasheet #2
- AT32UC3A0128 PDF datasheet #3
- AT32UC3A3128 PDF datasheet #4
- AT32UC3A3128 PDF datasheet #5
- Current page: 168 of 1012
- Download datasheet (16Mb)
14.6.5
14.6.5.1
14.6.5.2
32072G–11/2011
CompactFlash Support
I/O Mode, Common Memory Mode, Attribute Memory Mode
CFCE1 and CFCE2 signals
The External Bus Interface integrates circuitry that interfaces to CompactFlash devices.
The CompactFlash logic is driven by the SMC on the NCS[4] and/or NCS[5] address space.
Writing to the HMATRIX.SFR6.CS4A and/or HMATRIX.SFR6.CS5A bits the appropriate value
enables this logic. Access to an external CompactFlash device is then made by accessing the
address space reserved to NCS[4] and/or NCS[5].
Attribute Memory, Common Memory, I/O modes are supported but the signals _IOWR, _IOIS16
(I/O mode) are not handled.
Within the NCS[4] and/or NCS[5] address space, the current transfer address is used to distin-
guish I/O mode, common memory mode andattribute memory mode.
The different modes are accessed through a specific memory mapping as illustrated on
14-2 on page
as described in
Figure 14-2. CompactFlash Memory Mapping
Note:
Table 14-4.
To cover all types of access, the SMC must be alternatively set to drive 8-bit data bus or 16-bit
data bus. The odd byte access on the DATA[7:0] bus is only possible when the SMC is config-
CF Address Space
The ADDR[22] I/O line is used to drive the REG signal of the CompactFlash Device.
ADDR[23:21]
168. ADDR[23:21] bits of the transfer address are used to select the desired mode
CompactFlash Mode Selection
000
001
010
100
Table 14-4 on page
Offset 0x0080 0000
Offset 0x0040 0000
Offset 0x0020 0000
Offset 0x0000 0000
168.
I/O Mode (Read operations)
I/O Mode (Write operations)
Common Memory Mode Space
Attribute Memory Mode Space
Mode Base Address
Common Memory
Attribute Memory
(Read operations)
(Write operations)
I/O Mode Space
I/O Mode Space
Figure
168
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