SAM7L128 Atmel Corporation, SAM7L128 Datasheet - Page 147

• Manufacturer Part Number: SAM7L128
• Manufacturer: Atmel Corporation

Specifications of SAM7L128

• Flash (kbytes): 128 Kbytes
• Pin Count: 144
• Max. Operating Frequency: 36 MHz
• Cpu: ARM7TDMI
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 80
• Ext Interrupts: 80
• Usb Speed: No
• Usb Interface: No
• Spi: 1
• Twi (i2c): 1
• Uart: 3
• Segment Lcd: 40
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 4
• Adc Resolution (bits): 10
• Adc Speed (ksps): 460
• Resistive Touch Screen: No
• Temp. Sensor: No
• Crypto Engine: No
• Sram (kbytes): 6
• Self Program Memory: YES
• Dram Memory: No
• Nand Interface: No
• Picopower: No
• Temp. Range (deg C): -40 to 85
• I/o Supply Class: 1.8/3.3
• Operating Voltage (vcc): 1.8 to 3.6
• Fpu: No
• Mpu / Mmu: no / no
• Timers: 3
• Output Compare Channels: 3
• Input Capture Channels: 3
• Pwm Channels: 4
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: No

19.3.3.1
6257A–ATARM–20-Feb-08
Getting Embedded Flash Descriptor
Figure 19-6. Command State Chart
This command allows the system to learn about the Flash organization. The system can take full
advantage of this information. For instance, a device could be replaced by one with more Flash
capacity, and so the software is able to adapt itself to the new configuration.
To get the embedded Flash descriptor, the application writes the GETD command in the
MC_FCR register. The first word of the descriptor can be read by the software application in the
MC_FRR register as soon as the FRDY flag in the MC_FSR register rises. The next reads of the
MC_FRR register provide the following word of the descriptor. If extra read operations to the
MC_FRR register are done after the last word of the descriptor has been returned, then the
MC_FRR register value is 0 until the next valid command
.
Write FCMD and PAGENB in Flash Command Register
Check if FLOCKE flag Set
Check if FCMDE flag Set
Check if FRDY flag Set
Read Status: MC_FSR
Check if FRDY flag Set
Read Status: MC_FSR
Command Successfull
AT91SAM7L128/64 Preliminary
Yes
Yes
No
No
No
No
Yes
Yes
Locking region violation
Bad keyword violation
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