SAM7SE256 Atmel Corporation, SAM7SE256 Datasheet - Page 24
SAM7SE256
Manufacturer Part Number
SAM7SE256
Description
Manufacturer
Atmel Corporation
Specifications of SAM7SE256
Flash (kbytes)
256 Kbytes
Pin Count
144
Max. Operating Frequency
48 MHz
Cpu
ARM7TDMI
Hardware Qtouch Acquisition
No
Max I/o Pins
88
Ext Interrupts
88
Usb Transceiver
1
Usb Speed
Full Speed
Usb Interface
Device
Spi
1
Twi (i2c)
1
Uart
3
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)
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)
3.0 to 3.6
Fpu
No
Mpu / Mmu
Yes / 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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8.1.2
8.1.2.1
24
SAM7SE512/256/32
Embedded Flash
Flash Overview
Figure 8-2.
Figure 8-3.
The Flash of the SAM7SE512 is organized in two banks (dual plane) of 1024 pages of 256
bytes. It reads as 131,072 32-bit words.
The Flash of the SAM7SE256 is organized in 1024 pages (single plane) of 256 bytes. It reads as
65,536 32-bit words.
The Flash of the SAM7SE32 is organized in 256 pages (single plane) of 128 bytes. It reads as
8192 32-bit words.
The Flash of the SAM7SE32 contains a 128-byte write buffer, accessible through a 32-bit
interface.
The Flash of the SAM7SE512/256 contains a 256-byte write buffer, accessible through a 32-bit
interface.
256M Bytes
256M Bytes
Internal Memory Mapping with GPNVM Bit 2 = 0 (default)
Internal Memory Mapping with GPNVM Bit 2 = 1
0x0000 0000
0x0010 0000
0x0020 0000
0x0000 0000
0x0010 0000
0x0020 0000
0x000F FFFF
0x001F FFFF
0x002F FFFF
0x0030 0000
0x0FFF FFFF
0x000F FFFF
0x001F FFFF
0x002F FFFF
0x0030 0000
0x0FFF FFFF
0x0040 0000
0x0040 0000
0x003F FFFF
0x003F FFFF
Flash Before Remap
ROM Before Remap
SRAM After Remap
Undefined Areas
Undefined Areas
SRAM After Remap
Internal FLASH
Internal FLASH
Internal SRAM
Internal SRAM
Internal ROM
Internal ROM
(Abort)
(Abort)
252 M Bytes
252 M Bytes
1 M Bytes
1 M Bytes
1 M Bytes
1 M Bytes
1 M Bytes
1 M Bytes
1 M Bytes
1 M Bytes
6222F–ATARM–14-Jan-11
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