SAM9X25 Atmel Corporation, SAM9X25 Datasheet - Page 307

• Manufacturer Part Number: SAM9X25
• Manufacturer: Atmel Corporation

Specifications of SAM9X25

• Flash (kbytes): 0 Kbytes
• Pin Count: 217
• Max. Operating Frequency: 400 MHz
• Cpu: ARM926
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 105
• Ext Interrupts: 105
• Usb Transceiver: 3
• Usb Speed: Hi-Speed
• Usb Interface: Host, Device
• Spi: 2
• Twi (i2c): 3
• Uart: 7
• Can: 2
• Lin: 4
• Ssc: 1
• Ethernet: 2
• Sd / Emmc: 2
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 12
• Adc Resolution (bits): 10
• Adc Speed (ksps): 440
• Resistive Touch Screen: No
• Temp. Sensor: No
• Crypto Engine: No
• Sram (kbytes): 32
• Self Program Memory: NO
• External Bus Interface: 1
• Dram Memory: DDR/LPDDR, SDRAM/LPSDR
• Nand Interface: Yes
• Picopower: No
• Temp. Range (deg C): -40 to 85
• I/o Supply Class: 1.8/3.3
• Operating Voltage (vcc): 0.9 to 1.1
• Fpu: No
• Mpu / Mmu: No/Yes
• Timers: 6
• Output Compare Channels: 6
• Input Capture Channels: 6
• Pwm Channels: 4
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: No

25.7.6.1
Name:
Access:
Reset:
• EBI_CS1A: EBI Chip Select 1 Assignment
0 = EBI Chip Select 1 is assigned to the Static Memory Controller.
1 = EBI Chip Select 1 is assigned to the DDR2SDR Controller.
• EBI_CS3A: EBI Chip Select 3 Assignment
0 = EBI Chip Select 3 is only assigned to the Static Memory Controller and EBI_NCS3 behaves as defined by the SMC.
1 = EBI Chip Select 3 is assigned to the Static Memory Controller and the NAND Flash Logic is activated.
• EBI_DBPUC: EBI Data Bus Pull-Up Configuration
0 = EBI D0 - D15 Data Bus bits are internally pulled-up to the VDDIOM power supply.
1 = EBI D0 - D15 Data Bus bits are not internally pulled-up.
• EBI_DBPDC: EBI Data Bus Pull-Down Configuration
0 = EBI D0 - D15 Data Bus bits are internally pulled-down to the ground.
1 = EBI D0 - D15 Data Bus bits are not internally pulled-down.
• EBI_DRIVE: EBI I/O Drive Configuration
This allows to avoid overshoots and gives the best performance according to the bus load and external memories.
0 = Low drive (default).
1 = High drive.
• NFD0_ON_D16: NAND Flash Databus Selection
0 = NAND Flash I/O are connected to D0-D15 in case VDDIOM equals VDDNF (default).
1 = NAND Flash I/O are connected to D16-D31 in case VDDIOM does not equal VDDNF.
11054A–ATARM–27-Jul-11
NFD0_ON_D16
0
0
1
31
23
15
–
–
–
7
–
EBI Chip Select Assignment Register
CCFG_EBICSA
Read-write
0x0000_0000
Signals
NFD0 = D0,..., NFD15 = D15
NFD0 = D0,..., NFD15 = D15
NFD0 = D16,..., NFD15 = D31
30
22
14
–
–
–
6
–
29
21
13
–
–
–
5
–
VDDIOM
1.8V
3.3V
1.8V
28
20
12
–
–
–
4
–
EBI_CS3A
VDDNF
1.8V
3.3V
3.3V
27
19
11
–
–
–
3
External Memory
DDR2 or LP-DDR or LPSDR + NAND Flash 1.8V
32-bit SDRAM + NAND Flash 3.3V
DDR2 or LP-DDR or LPSDR + NAND Flash 3.3V
26
18
10
–
–
–
2
–
DDR_MP_EN
EBI_DBPDC
EBI_DRIVE
EBI_CS1A
25
17
9
1
SAM9X25
NFD0_ON_D16
EBI_DBPUC
24
16
–
8
0
–
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