SAM9XE512 Atmel Corporation, SAM9XE512 Datasheet - Page 106
SAM9XE512
Manufacturer Part Number
SAM9XE512
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 SAM9XE512
Flash (kbytes)
512 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)
32
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: 106 of 860
- Download datasheet (13Mb)
Figure 15-6. User Reset State
15.3.4.4
106
periph_nreset
proc_nreset
(nrst_out)
RSTTYP
AT91SAM9XE128/256/512 Preliminary
NRST
SLCK
NRST
MCK
Brownout Reset
When the processor reset signal is released, the RSTTYP field of the Status Register
(RSTC_SR) is loaded with the value 0x4, indicating a User Reset.
T h e
EXTERNAL_RESET_LENGTH Slow Clock cycles, as programmed in the field ERSTL. How-
ever, if NRST does not rise after EXTERNAL_RESET_LENGTH because it is driven low
externally, the internal reset lines remain asserted until NRST actually rises.
When the brown_out/bod_reset signal is asserted, the Reset State Manager immediately enters
the Brownout Reset. In this state, the processor, the peripheral and the external reset lines are
asserted.
The Brownout Reset is left 3 Slow Clock cycles after the rising edge of brown_out/bod_reset
after a two-cycle resynchronization. An external reset is also triggered.
When the processor reset is released, the field RSTTYP in RSTC_SR is loaded with the value
0x5, thus indicating that the last reset is a Brownout Reset.
Resynch.
2 cycles
Any
Freq.
Any
N R S T
>= EXTERNAL RESET LENGTH
M a n a g e r
g u a r a n t e e s
Resynch.
2 cycles
XXX
t h a t
t h e
Processor Startup
= 3 cycles
N R S T
l i n e
0x4 = User Reset
i s
6254C–ATARM–22-Jan-10
a s s e r t e d
f o r
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