SAM7S16 Atmel Corporation, SAM7S16 Datasheet - Page 23
SAM7S16
Manufacturer Part Number
SAM7S16
Description
Manufacturer
Atmel Corporation
Specifications of SAM7S16
Flash (kbytes)
16 Kbytes
Pin Count
48
Max. Operating Frequency
55 MHz
Cpu
ARM7TDMI
Hardware Qtouch Acquisition
No
Max I/o Pins
21
Ext Interrupts
21
Usb Speed
No
Usb Interface
No
Spi
1
Twi (i2c)
1
Uart
2
Ssc
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)
4
Self Program Memory
NO
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)
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
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8.8.3
8.8.3.1
8.8.3.2
8.8.3.3
8.8.3.4
6175L–ATARM–28-Jul-11
Lock Regions
SAM7S512
SAM7S256
SAM7S128
SAM7S64
Two Embedded Flash Controllers each manage 16 lock bits to protect 16 regions of the flash
against inadvertent flash erasing or programming commands. The SAM7S512 contains 32 lock
regions and each lock region contains 64 pages of 256 bytes. Each lock region has a size of 16
Kbytes.
If a locked-region’s erase or program command occurs, the command is aborted and the
LOCKE bit in the MC_FSR register rises and the interrupt line rises if the LOCKE bit has been
written at 1 in the MC_FMR register.
The 16 NVM bits (or 32 NVM bits) are software programmable through the corresponding EFC
User Interface. The command “Set Lock Bit” enables the protection. The command “Clear Lock
Bit” unlocks the lock region.
Asserting the ERASE pin clears the lock bits, thus unlocking the entire Flash.
The Embedded Flash Controller manages 16 lock bits to protect 16 regions of the flash against
inadvertent flash erasing or programming commands. The SAM7S256 contains 16 lock regions
and each lock region contains 64 pages of 256 bytes. Each lock region has a size of 16 Kbytes.
If a locked-region’s erase or program command occurs, the command is aborted and the
LOCKE bit in the MC_FSR register rises and the interrupt line rises if the LOCKE bit has been
written at 1 in the MC_FMR register.
The 16 NVM bits are software programmable through the EFC User Interface. The command
“Set Lock Bit” enables the protection. The command “Clear Lock Bit” unlocks the lock region.
Asserting the ERASE pin clears the lock bits, thus unlocking the entire Flash.
The Embedded Flash Controller manages 8 lock bits to protect 8 regions of the flash against
inadvertent flash erasing or programming commands. The SAM7S128 contains 8 lock regions
and each lock region contains 64 pages of 256 bytes. Each lock region has a size of 16 Kbytes.
If a locked-region’s erase or program command occurs, the command is aborted and the
LOCKE bit in the MC_FSR register rises and the interrupt line rises if the LOCKE bit has been
written at 1 in the MC_FMR register.
The 8 NVM bits are software programmable through the EFC User Interface. The command “Set
Lock Bit” enables the protection. The command “Clear Lock Bit” unlocks the lock region.
Asserting the ERASE pin clears the lock bits, thus unlocking the entire Flash.
The Embedded Flash Controller manages 16 lock bits to protect 16 regions of the flash against
inadvertent flash erasing or programming commands. The SAM7S64 contains 16 lock regions
and each lock region contains 32 pages of 128 bytes. Each lock region has a size of 4 Kbytes.
If a locked-region’s erase or program command occurs, the command is aborted and the
LOCKE bit in the MC_FSR register rises and the interrupt line rises if the LOCKE bit has been
written at 1 in the MC_FMR register.
SAM7S Series
23
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