SAM9XE128 Atmel Corporation, SAM9XE128 Datasheet - Page 24
SAM9XE128
Manufacturer Part Number
SAM9XE128
Description
Manufacturer
Atmel Corporation
Datasheets
1.SAM9260.pdf
(290 pages)
2.SAM9261.pdf
(248 pages)
3.SAM9XE128.pdf
(860 pages)
4.SAM9XE128.pdf
(48 pages)
Specifications of SAM9XE128
Flash (kbytes)
128 Kbytes
Pin Count
217
Max. Operating Frequency
180 MHz
Cpu
ARM926
Hardware Qtouch Acquisition
No
Max I/o Pins
96
Ext Interrupts
96
Usb Transceiver
3
Usb Speed
Full Speed
Usb Interface
Host, Device
Spi
2
Twi (i2c)
2
Uart
6
Ssc
1
Ethernet
1
Sd / Emmc
1
Graphic Lcd
No
Video Decoder
No
Camera Interface
Yes
Adc Channels
4
Adc Resolution (bits)
10
Adc Speed (ksps)
312
Resistive Touch Screen
No
Temp. Sensor
No
Crypto Engine
No
Sram (kbytes)
16
Self Program Memory
NO
External Bus Interface
1
Dram Memory
sdram
Nand Interface
Yes
Picopower
No
Temp. Range (deg C)
-40 to 85
I/o Supply Class
1.8/3.3
Operating Voltage (vcc)
1.65 to 1.95
Fpu
No
Mpu / Mmu
No / Yes
Timers
6
Output Compare Channels
6
Input Capture Channels
6
32khz Rtc
Yes
Calibrated Rc Oscillator
No
- SAM9260 PDF datasheet
- SAM9261 PDF datasheet #2
- SAM9XE128 PDF datasheet #3
- SAM9XE128 PDF datasheet #4
- Current page: 24 of 860
- Download datasheet (13Mb)
Figure 8-3.
8.1.5.3
8.1.5.4
24
AT91SAM9XE128/256/512 Preliminary
256, 512 or
1024 Pages
GPNVM Bits
Security Bit
Flash First Memory Plane Mapping
0x0020 0000
0x0021 FFFF
or 0x0023 FFFF
or 0x0027 FFFF
The AT91SAM9XE128/256/512 features four GPNVM bits that can be cleared or set respec-
tively through the commands “Clear GPNVM Bit” and “Set GPNVM Bit” of the EEFC User
Interface.
Table 8-2.
The AT91SAM9XE128/256/512 features a security bit, based on a specific GPNVM bit, GPN-
VMBit[0]. When the security is enabled, access to the Flash, either through the ICE interface or
through the Fast Flash Programming Interface, is forbidden. This ensures the confidentiality of
the code programmed in the Flash.
Disabling the security bit can only be achieved by asserting the ERASE pin at 1, and after a full
Flash erase is performed. When the security bit is deactivated, all accesses to the Flash are
permitted.
As the ERASE pin integrates a permanent pull-down, it can be left unconnected during normal
operation.
GPNVMBit[#]
128, 256 or 512 Kbytes
Locked Regions Area
32 bits wide
0
1
2
3
General-purpose Non volatile Memory Bits
Function
Security Bit
Brownout Detector Enable
Brownout Detector Reset Enable
Boot Mode Select (BMS)
Locked Region 7, 15 or 31
Locked Region 0
16 Kbytes
Page 0
Page 31
6254C–ATARM–22-Jan-10
512 bytes
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