SAM7SE256 Atmel Corporation, SAM7SE256 Datasheet - Page 158

• 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

21.8.1
Name:
Access:
Reset Value:
Offset:
Absolute Address: 0xFFFF FF80
• CS1A: Chip Select 1 Assignment
0 = Chip Select 1 is assigned to the Static Memory Controller.
1 = Chip Select 1 is assigned to the SDRAM Controller.
• CS2A: Chip Select 2 Assignment
0 = Chip Select 2 is assigned to the Static Memory Controller and NCS2, NCS5 and NCS6 behave as defined by the SMC.
1 = Chip Select 2 is assigned to the Static Memory Controller and the CompactFlash Logic (second slot) is activated.
Accessing the address space reserved to NCS5 and NCS6 may lead to an unpredictable outcome.
• CS3A: Chip Select 3 Assignment
0 = Chip Select 3 is only assigned to the Static Memory Controller and NCS3 behave as defined by the SMC.
1 = Chip Select 3 is assigned to the Static Memory Controller and the NAND Flash Logic is activated.
• CS4A: Chip Select 4 Assignment
0 = Chip Select 4 is assigned to the Static Memory Controller and NCS4, NCS5 and NCS6 behave as defined by the SMC.
1 = Chip Select 4 is assigned to the Static Memory Controller and the CompactFlash Logic (first slot) is activated.
Accessing the address space reserved to NCS5 and NCS6 may lead to an unpredictable outcome.
• NWPC: NWAIT Pin Configuration
0 = The NWAIT device pin is not connected to the External Wait Request input of the Static Memory Controller, this multi-
plexed pin can be used as a PIO.
1 = The NWAIT device pin is connected to the External Wait Request input of the Static Memory Controller.
158
31
23
15
–
–
–
7
–
SAM7SE512/256/32
EBI Chip Select Assignment Register
30
22
14
EBI_CSA
Read/Write
0x0
0x0
–
–
–
6
–
29
21
13
–
–
–
5
–
CS4A
28
20
12
–
–
–
4
CS3A
27
19
11
–
–
–
3
CS2A
26
18
10
–
–
–
2
CS1A
25
17
–
–
9
–
1
6222F–ATARM–14-Jan-11
NWPC
24
16
–
8
–
0
–