EB9261
EB9261 User’s manual www.ronetix.at
7
2.4
Circuit Description
The schematic of the CPU module can be found on the DVD or here:
http://download.ronetix.info/boards/doc/PM9261/v1.2/bb9261_v1.2_sch.pdf
2.4.1 AT91SAM9261
The footprint is for a 217-pin BGA package.
The pull-down resistor R42 enables to choose between the standard ICE debug mode and the JTAG
boundary scan mode of operation.
The R42 is assembled by default – ICE debug mode.
2.4.2 200-pin SODIMM Connector
The 200-pin SODIMM connector makes the most CPU pins, Vcc 3.3V and Ground available to the
user.
The recommended SODIMM200 2.5V connector is:
FCI
59354-052FSLF
The description of the SODIM200 signals is available on the DVD or:
http://download.ronetix.info/boards/doc/PM9263/SODIMM200_PM9261_PM9263.xls
2.4.3 Memories
The PM9261 has on board:
•
4 Mbyte, 16-bit Parallel Flash (boot capable)
•
64 Mbyte, 32-bit SDRAM
•
2 Gbit, 8 or 16-bit NAND Flash (boot capable)
•
32 Mbit, serial SPI DataFlash (boot capable)