SAM9XE512 Atmel Corporation, SAM9XE512 Datasheet - Page 75

• Manufacturer Part Number: SAM9XE512
• Manufacturer: Atmel Corporation

Specifications of SAM9XE512

• Flash (kbytes): 512 Kbytes
• Pin Count: 217
• Max. Operating Frequency: 180 MHz
• Cpu: ARM926
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 96
• Ext Interrupts: 96
• Usb Transceiver: 3
• Usb Speed: Full Speed
• Usb Interface: Host, Device
• Spi: 2
• Twi (i2c): 2
• Uart: 6
• Ssc: 1
• Ethernet: 1
• Sd / Emmc: 1
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: Yes
• Adc Channels: 4
• Adc Resolution (bits): 10
• Adc Speed (ksps): 312
• 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): 1.65 to 1.95
• Fpu: No
• Mpu / Mmu: No / Yes
• Timers: 6
• Output Compare Channels: 6
• Input Capture Channels: 6
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: No

13. AT91SAM9XE Boot Program
13.1
13.2
6254C–ATARM–22-Jan-10
Overview
Flow Diagram
The Boot Program integrates different programs permitting download and/or upload into the dif-
ferent memories of the product.
First, it initializes the Debug Unit serial port (DBGU) and the USB Device Port.
SAM-BA Boot is then executed. It waits for transactions either on the USB device, or on the
DBGU serial port.
The Boot Program implements the algorithm in
Figure 13-1. Boot Program Algorithm Flow Diagram
Internal RC Oscillator
No
Crystal Table
Large
Start
Run SAM-BA Boot
USB Enumeration
AT91SAM9XE128/256/512 Preliminary
Successful ?
Yes
Yes
Main Oscillator Bypass
No
Crystal Table
Reduced
No
Figure
Character(s) received
Run SAM-BA Boot
No
13-1.
on DBGU ?
Yes
Input Frequency
Yes
Table
SAM-BA Boot
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