SAM3U4E Atmel Corporation, SAM3U4E Datasheet - Page 357
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SAM3U4E
Manufacturer Part Number
SAM3U4E
Description
Manufacturer
Atmel Corporation
Specifications of SAM3U4E
Flash (kbytes)
256 Kbytes
Pin Count
144
Max. Operating Frequency
96 MHz
Cpu
Cortex-M3
# Of Touch Channels
57
Hardware Qtouch Acquisition
No
Max I/o Pins
96
Ext Interrupts
96
Usb Transceiver
1
Quadrature Decoder Channels
1
Usb Speed
Hi-Speed
Usb Interface
Device
Spi
5
Twi (i2c)
2
Uart
5
Ssc
1
Sd / Emmc
1
Graphic Lcd
No
Video Decoder
No
Camera Interface
No
Adc Channels
16
Adc Resolution (bits)
12
Adc Speed (ksps)
384
Resistive Touch Screen
No
Temp. Sensor
No
Crypto Engine
No
Sram (kbytes)
50
Self Program Memory
YES
External Bus Interface
1
Dram Memory
No
Nand Interface
Yes
Picopower
No
Temp. Range (deg C)
-40 to 85
I/o Supply Class
1.8/3.3
Operating Voltage (vcc)
1.62 to 3.6
Fpu
No
Mpu / Mmu
Yes / No
Timers
3
Output Compare Channels
3
Input Capture Channels
3
Pwm Channels
4
32khz Rtc
Yes
Calibrated Rc Oscillator
Yes
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25.7.3
25.8
Figure 25-3. Memory Connections for External Devices
6430E–ATARM–29-Aug-11
6430E–ATARM–29-Aug-11
External Memory Mapping
Interrupt
SMC
NCS[0] - NCS[3]
The SMC has an interrupt line connected to the Nested Vector Interrupt Controller (NVIC). Han-
dling the SMC interrupt requires programming the NVIC before configuring the SMC.
Table 25-3.
Table 25-4.
Note:
The SMC provides up to 24 address lines, A[23:0]. This allows each chip select line to address
up to 16 Mbytes of memory.
If the physical memory device connected on one chip select is smaller than 16 Mbytes, it wraps
around and appears to be repeated within this space. The SMC correctly handles any valid
access to the memory device within the page (see
A[23:0] is only significant for 8-bit memory, A[23:1] is used for 16-bit memory.
0x60000000-0x60FFFFFF
0x61000000-0x61FFFFFF
0x62000000-0x62FFFFFF
0x63000000-0x63FFFFFF
0x04000000-0x07FFFFFF
0x68000000-0x6FFFFFFF
Address
D[15:0]
A[23:0]
Instance
NWE
NRD
SMC
1. See
Peripheral IDs
External Memory Mapping
Section 25.16.2 ”NFC Control
ID
9
Use
Chip Select 0 (16 MB)
Chip Select 1
Chip Select 2
Chip Select 3
Undefined Area
NFC Command Registers
Registers”, i.e., CMD_ADDR description.
8 or 16
NCS0
NCS1
Figure
NCS2
Memory Enable
Output Enable
Write Enable
A[25:0]
D[15:0] or D[7:0]
NCS3
(1)
Memory Enable
).
Memory Enable
Memory Enable
SAM3U Series
SAM3U Series
Access
Read-write
Read-write
Read-write
Read-write
Read-write
357
357
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