SAM7SE256 Atmel Corporation, SAM7SE256 Datasheet - Page 225

• Manufacturer Part Number: SAM7SE256
• 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

24.4.1
Name:
Access:
• RST: RESET Parity
Provides reset to current ECC by software.
1: Reset sECC Parity and ECC NParity register
0: No effect
24.4.2
Name:
Access:
• PAGESIZE: Page Size
This field defines the page size of the NAND Flash device.
A word has a value of 8 bits or 16 bits, depending on the NAND Flash or Smartmedia memory organization.
6222F–ATARM–14-Jan-11
Page Size
00
01
10
11
31
23
15
31
23
15
–
–
–
7
–
–
–
–
7
–
ECC Control Register
ECC Mode Register
Description
528 words
1056 words
2112 words
4224 words
30
22
14
30
22
14
ECC_CR
Write-only
–
–
–
6
–
ECC_MR
Read/Write
–
–
–
6
–
29
21
13
29
21
13
–
–
–
5
–
–
–
–
5
–
28
20
12
28
20
12
–
–
–
4
–
–
–
–
4
–
27
19
11
27
19
11
–
–
–
3
–
–
–
–
3
–
26
18
10
26
18
10
–
–
–
2
–
–
–
–
2
–
SAM7SE512/256/32
25
17
25
17
–
–
9
–
1
–
–
–
9
–
1
PAGESIZE
RST
24
16
24
16
–
–
8
–
0
–
–
8
–
0
225