SAM7X128 Atmel Corporation, SAM7X128 Datasheet - Page 132

• Manufacturer Part Number: SAM7X128
• Manufacturer: Atmel Corporation

Specifications of SAM7X128

• Flash (kbytes): 128 Kbytes
• Pin Count: 100
• Max. Operating Frequency: 55 MHz
• Cpu: ARM7TDMI
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 62
• Ext Interrupts: 62
• Usb Transceiver: 1
• Usb Speed: Full Speed
• Usb Interface: Device
• Spi: 2
• Twi (i2c): 1
• Uart: 3
• Can: 1
• Ssc: 1
• Ethernet: 1
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 8
• Adc Resolution (bits): 10
• Adc Speed (ksps): 384
• Resistive Touch Screen: No
• Temp. Sensor: No
• Crypto Engine: No
• Sram (kbytes): 32
• Self Program Memory: NO
• Dram Memory: No
• Nand Interface: No
• Picopower: No
• Temp. Range (deg C): -40 to 85
• I/o Supply Class: 3.3
• Operating Voltage (vcc): 3.0 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

20.3.4.4
20.3.4.5
132
SAM7X512/256/128
Flash Lock Commands
Flash General-purpose NVM Commands
All lock bits must be deactivated before using the Full Erase command. This can be done by
using the CLB command.
Table 20-22. Full Erase Command
Lock bits can be set using WPL or EWPL commands. They can also be set by using the Set
Lock command (SLB). With this command, several lock bits can be activated at the same time.
Bit 0 of Bit Mask corresponds to the first lock bit and so on.
In the same way, the Clear Lock command (CLB) is used to clear lock bits. All the lock bits can
also be cleared by the EA command.
Table 20-23. Set and Clear Lock Bit Command
Lock bits can be read using Get Lock Bit command (GLB). When a bit set in the Bit Mask is
returned, then the corresponding lock bit is active.
Table 20-24. Get Lock Bit Command
General-purpose NVM bits (GP NVM) can be set with the Set GPNVM command (SGPB). Using
this command, several GP NVM bits can be activated at the same time. Bit 0 of Bit Mask corre-
sponds to the first GPNVM bit and so on.
In the same way, the Clear GPNVM command (CGPB) is used to clear GP NVM bits. All the
general-purpose NVM bits are also cleared by the EA command.
Table 20-25. Set and Clear General-purpose NVM Bit Command
GP NVM bits can be read using Get GPNVM Bit command (GGPB). When a bit set in the Bit
Mask is returned, then the corresponding GPNVM bit is set.
Table 20-26. Get General-purpose NVM Bit Command
Read/Write
Write
Read/Write
Write
Write
Read/Write
Write
Read
Read/Write
Write
Write
Read/Write
Write
Read
DR Data
EA
DR Data
SLB or CLB
DR Data
GLB
Bit Mask
Bit Mask
DR Data
SGPB or CGPB
Bit Mask
DR Data
GGPB
Bit Mask
6120I–ATARM–06-Apr-11