SAM9XE512 Atmel Corporation, SAM9XE512 Datasheet - Page 151

• Manufacturer Part Number: SAM9XE512
• Manufacturer: Atmel Corporation

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

Figure 20-7. Example of Partial Page Programming
20.3.3.3
20.3.3.4
6254C–ATARM–22-Jan-10
X words
X words
X words
X words
Erase Commands
Lock Bit Protection
So Page Y erased
Erase All Flash
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
32-bit wide
Step 1.
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
...
...
...
...
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
By using the WP command, a page can be programmed in several steps if it has been erased
before (see
The Partial Programming mode works only with 32-bit (or higher) boundaries. It can not be used
with boundaries lower than 32 bits (one or two bytes, for example).
Erase commands are allowed only on unlocked regions.
The erase sequence is:
Two errors can be detected in the EEFC_FSR register after a programming sequence:
Lock bits are associated with several pages in the embedded Flash memory plane. This defines
lock regions in the embedded Flash memory plane. They prevent writing/erasing protected
pages.
The lock sequence is:
• a Command Error: a bad keyword has been written in the EEFC_FCR register.
• a Lock Error: the page to be programmed belongs to a locked region. A command must be
• Erase starts as soon as one of the erase commands and the FARG field are written in the
• When the programming completes, the FRDY bit in the Flash Programming Status Register
• a Command Error: a bad keyword has been written in the EEFC_FCR register.
• a Lock Error: at least one page to be erased belongs to a locked region. The erase command
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
previously run to unlock the corresponding region.
Flash Command Register.
(EEFC_FSR) rises. If an interrupt has been enabled by setting the bit FRDY in EEFC_FMR,
the interrupt line of the System Controller is activated.
has been refused, no page has been erased. A command must be previously run to unlock
the corresponding region.
Figure
Programming of the second part of Page Y
20-7).
AT91SAM9XE128/256/512 Preliminary
FF
FF
FF
CA FE
CA FE
CA FE
FF
FF
FF
FF
FF
FF
32-bit wide
Step 2.
FF
FF
FF
FF
FF
FF
FF
FF
FF
...
...
...
...
FF
FF
FF
CA
CA
CA
FF
FF
FF
FF
FF
FF
FF
FF
FF
FE
FE
FE
FF
FF
FF
FF
FF
FF
Programming of the third part of Page Y
FF
FF
FF
CA FE
CA FE
CA FE
DE CA
DE CA
DE CA
FF
FF
FF
32-bit wide
FF
FF
FF
FF
FF
FF
Step 3.
...
...
...
...
FF
FF
FF
CA
CA
CA
DE CA
DE CA
DE CA
FF
FF
FF
FF
FF
FF
FE
FE
FE
FF
FF
FF
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